July 5, 2019 Re: Engineering Certification for the ...

July 5, 2019

SnapNrack

775 Fiero Lane, Ste. 200

San Luis Obispo, CA 93401

Attn.: SnapNrack - Engineering Department

Re: Engineering Certification for the SnapNrack RL Universal Rail-less System (2019-02916-B.01)

PZSE, Inc. - Structural Engineers has reviewed SnapNrack’s RL Universal System and UL 2703 based testing performance

of the complete system including mounts, splice elements and PV Panels. All information, data and analysis contained

within the SnapNrack RL Universal mount spacing tables are based on, and comply with the following codes:

1. Minimum Design Loads for Buildings and other Structures, ASCE/SEI 7-16

2. 2006-2018 International Building Code, by International Code Council, Inc.

3. 2006-2018 International Residential Code, by International Code Council, Inc.

4. AC428, Acceptance Criteria for Modular Framing Systems Used to Support Photovoltaic (PV) Panels, November

1, 2012 by ICC-ES

5. 2015 National Design Specification for Wood Construction (NDS), by the American Wood Council

Following are typical specifications to meet the above code requirements:

Design Criteria: Ground Snow Load = 0 - 90 (psf)

Basic Wind Speed = 105 - 180 (mph)

Roof Mean Height = 0 - 60 (ft)

Roof Pitch = 0 - 90 (degrees)

Exposure Category = B, C & D

Attachment Spacing: See attached RL Universal System Spacing Tables.

Cantilever: Maximum cantilever length is L/3, where “L” is the spacing noted in the Spacing Tables,

provided there is at least 1 module length between maximum cantilevers. See sheet

SNR-DC-00362.

Clearance: 2” to 10” clear from top of roof to top of PV panel.

Tolerance(s): 1.0” tolerance for any specified dimension in this report is allowed for installation.

1 of 20

Installation Orientation: Landscape - PV Panel long dimension is parallel to ridge/eave line of roof and the PV

panel is mounted on the long side.

Portrait - PV Panel short dimension is parallel to ridge/eave line of roof and the PV panel

is mounted on the short side.

RL Universal System Spacing Tables assume maximum panel dimensions are: 67”x40”

Irregular Array Geometry:

Irregular Array Geometries such as those with staggered rows may require additional mounts to support the irregular

module cantilevers. To reduce the amount of roof penetrations for such array geometries, SnapNrack’s RL Universal

Link is permitted for use only when adhering to all the following guidelines:

1) When linking panels in the same row, a RL Universal Link(s) shall occur within 1” - 6” from the nearest adjacent

Module Panel Edge.

2) Roof Attachment spacing’s (RL Universal System Spacing Tables) shall not be exceeded with the use of RL

Universal Link(s).

3) In any case, Maximum of (2) roof attachments per Module may be replaced with the utilization of RL Universal

Link(s).

See Sheet SNR-DC-00368 for further detail.

Attachment to Roof:

The attached spacing tables include consideration of the attachment device capacity, based on UL 2703 load testing

performed by SnapNrack. Tested load values are developed with 5/16” Ø lag screws with an effective embedment of 2-

1/2” into a Douglas Fir substrate, with a reference withdrawal (uplift or pullout) load capacity of 532 lb, and a reference

shear (side or lateral) load capacity of 270 lb for resisting short-term wind or seismic loads. Reference values are the

base values, before any adjustment is made per the NDS. Installations into alternate substrates or which use alternate

fasteners shall be permitted; provided that the fastener has tested or code-derived allowable load capacities, and meets

one of the following two criteria: A) The allowable load values for the alternate fastener shall meet or exceed the

allowable values noted above for the 5/16” Ø lag screws in Douglas Fir; or B) the mount spacing identified in the

“spacing tables” shall be reduced according to the more restrictive of the following two formulas:

�� = �� ∗�� ℎ��

532 �

Or

�� = �� ∗�� ℎ��

270 �

These formulas shall not be used to increase the allowable spacing beyond that listed in the spacing tables.

2 of 20

Components and Cladding Roof Zones:

The Edge Zones of the roof shall be determined based on the building’s least horizontal dimension (LHD). The Edge Zone,

“a”, is equal to 10% of the LHD (a = 0.1 * LHD) where “a” shall not be taken as less than 3 feet. For this packet, we

assume building LHD less than 60 feet. For greater values, further analysis is required to determine proper Edge Zones.

See Detail 1.0.

Panel with Support Mounts in Multiple Roof Zones:

Edge and Corner Zone spacings (Zone 2 & 3, respectively) apply only to mounts located in those Zones, not to all the

mounts supporting the module.

Detail 1.0: Roof Edge and Corner Zones

Notes: 1) Tables are determined for RL system only and do not include roof capacity check.

2) Risk Category II per ASCE 7-16.

3) Topographic factor, kzt is 1.0.

4) ƳE = 1.5 (ASCE 7-16 Section 29.4.4)

5) Average parapet height is 0.0 ft.

6) Wind speeds are LRFD values.

7) Attachment spacing(s) apply to a seismic design category E or less.

3 of 20

Structural Details

Part Number: Description: Date: Rev:

SNR-DC-00362 System Overview, Flashtrack on Comp. 5/01/2019 1

SNR-DC-00363 Component Detail, Mount 5/01/2019 1

SNR-DC-00364 Component Detail, Link 5/01/2019 1

SNR-DC-00365 System Detail, Skirt and Skirt Spacer 5/01/2019 1

SNR-DC-00366 System Detail, Deck Mount 5/01/2019 1

SNR-DC-00367 System Detail, Ridge Mount 5/01/2019 1

SNR-DC-00368 System Overview, Staggered Arrays 5/28/2019 1

SNR-DC-00369 Attachment Detail, Flashtrack on Comp. 5/01/2019 1

Design Responsibility:

These tables are intended to be used under the responsible charge of a registered design professional where required by

the authority having jurisdiction. In all cases, these tables should be used under the direction of a design professional

with sufficient structural engineering knowledge and experience to be able to:

• Evaluate whether these tables are applicable to the project, and

• Understand and determine the appropriate values for all input parameters of these tables.

This letter certifies that the SnapNrack RL Universal Rail-less System, when installed according to the limitations of this

letter and the attached spacing tables, is in compliance with the above codes and loading criteria. This certification

excludes evaluation of the building structure to support the loads imposed on the building by the array; including, but

not limited to: strength and deflection of structural framing members, fastening and/or strength of roofing materials,

and/or the effects of snow accumulation on the roof. This requires additional knowledge of the building and is outside

the scope of the certification of this racking system.

If you have any questions on the above, do not hesitate to call.

Prepared by:

PZSE, Inc. – Structural Engineers

Roseville, CA

4 of 20

SnapNrack Universal RL Zone 1 / Zone 2 / Zone 3 Spacings (inches)

[Landscape] [0-30 ft]

105 110 115 120 130 140 150 160 180

θ < 7 72 / 72 / 60 72 / 72 / 55 72 / 71 / 50 72 / 64 / 46 72 / 54 / 38 64 / 47 / 33 55 / 40 / 29 48 / 35 / 25 38 / 28 / 20

7 < θ ≤ 20 72 / 64 / 53 72 / 58 / 48 72 / 53 / 44 72 / 49 / 40 63 / 41 / 34 54 / 35 / 29 47 / 31 / 25 41 / 27 / 22 32 / 21 / 17

20 < θ ≤ 27 72 / 72 / 69 72 / 71 / 63 72 / 64 / 57 72 / 59 / 52 72 / 50 / 44 72 / 43 / 38 63 / 37 / 33 55 / 32 / 29 43 / 25 / 22

27 < θ ≤ 45 72 / 72 / 72 72 / 72 / 70 72 / 72 / 64 72 / 72 / 58 69 / 62 / 49 59 / 53 / 42 51 / 46 / 37 45 / 40 / 32 35 / 32 / 25

45 < θ ≤ 90 72 72 72 72 72 72 66 58 45

θ < 7 72 / 60 / 42 72 / 54 / 38 68 / 49 / 35 62 / 45 / 32 52 / 38 / 27 45 / 33 / 23 39 / 28 / 20 34 / 25 / 18 27 / 19 / NA

7 < θ ≤ 20 69 / 45 / 37 63 / 41 / 34 57 / 37 / 31 52 / 34 / 28 44 / 29 / 24 38 / 25 / 21 33 / 22 / 18 29 / 19 / 16 22 / NA / NA

20 < θ ≤ 27 72 / 55 / 48 72 / 50 / 44 72 / 45 / 40 71 / 41 / 37 60 / 35 / 31 51 / 30 / 27 44 / 26 / 23 39 / 23 / 20 30 / 18 / 16

27 < θ ≤ 45 72 / 68 / 54 69 / 62 / 49 63 / 57 / 45 58 / 52 / 41 49 / 44 / 35 42 / 38 / 30 36 / 33 / 26 32 / 29 / 23 25 / 22 / 18

45 < θ ≤ 90 72 72 72 72 63 54 47 41 32

θ < 7 69 / 50 / 42 63 / 50 / 38 57 / 41 / 29 52 / 38 / 27 44 / 32 / 23 38 / 27 / 19 33 / 24 / 17 29 / 21 / NA 22 / 16 / NA

7 < θ ≤ 20 58 / 38 / 31 53 / 34 / 28 48 / 31 / 26 44 / 29 / 24 37 / 24 / 20 32 / 21 / 17 28 / 18 / NA 24 / 16 / NA 19 / NA / NA

20 < θ ≤ 27 72 / 46 / 41 71 / 42 / 37 65 / 38 / 34 59 / 35 / 31 50 / 29 / 26 43 / 25 / 22 37 / 22 / 19 32 / 19 / 17 25 / NA / NA

27 < θ ≤ 45 64 / 57 / 45 58 / 52 / 41 53 / 47 / 38 48 / 43 / 34 41 / 37 / 29 35 / 32 / 25 31 / 27 / 22 27 / 24 / 19 21 / 19 / NA

45 < θ ≤ 90 72 72 68 62 53 45 39 34 27

θ < 7 72 / 72 / 60 72 / 72 / 55 72 / 71 / 50 72 / 64 / 46 72 / 54 / 38 64 / 47 / 33 55 / 40 / 29 48 / 35 / 25 38 / 28 / 20

7 < θ ≤ 20 72 / 64 / 53 72 / 58 / 48 72 / 53 / 44 72 / 49 / 40 63 / 41 / 34 54 / 35 / 29 47 / 31 / 25 41 / 27 / 22 32 / 21 / 17

20 < θ ≤ 27 72 / 72 / 69 72 / 71 / 63 72 / 64 / 57 72 / 59 / 52 72 / 50 / 44 72 / 43 / 38 63 / 37 / 33 55 / 32 / 29 43 / 25 / 22

27 < θ ≤ 45 72 / 72 / 72 72 / 72 / 70 72 / 72 / 64 72 / 72 / 58 69 / 62 / 49 59 / 53 / 42 51 / 46 / 37 45 / 40 / 32 35 / 32 / 25

45 < θ ≤ 90 72 72 72 72 72 72 66 58 45

θ < 7 72 / 60 / 42 72 / 54 / 38 68 / 49 / 35 62 / 45 / 32 52 / 38 / 27 45 / 33 / 23 39 / 28 / 20 34 / 25 / 18 27 / 19 / NA

7 < θ ≤ 20 69 / 45 / 37 63 / 41 / 34 57 / 37 / 31 52 / 34 / 28 44 / 29 / 24 38 / 25 / 21 33 / 22 / 18 29 / 19 / 16 22 / NA / NA

20 < θ ≤ 27 72 / 55 / 48 72 / 50 / 44 72 / 45 / 40 71 / 41 / 37 60 / 35 / 31 51 / 30 / 27 44 / 26 / 23 39 / 23 / 20 30 / 18 / 16

27 < θ ≤ 45 72 / 68 / 54 69 / 62 / 49 63 / 57 / 45 58 / 52 / 41 49 / 44 / 35 42 / 38 / 30 36 / 33 / 26 32 / 29 / 23 25 / 22 / 18

45 < θ ≤ 90 72 72 72 72 63 54 47 41 32

θ < 7 69 / 50 / 42 63 / 50 / 38 57 / 41 / 29 52 / 38 / 27 44 / 32 / 23 38 / 27 / 19 33 / 24 / 17 29 / 21 / NA 22 / 16 / NA

7 < θ ≤ 20 58 / 38 / 31 53 / 34 / 28 48 / 31 / 26 44 / 29 / 24 37 / 24 / 20 32 / 21 / 17 28 / 18 / NA 24 / 16 / NA 19 / NA / NA

20 < θ ≤ 27 72 / 46 / 41 71 / 42 / 37 65 / 38 / 34 59 / 35 / 31 50 / 29 / 26 43 / 25 / 22 37 / 22 / 19 32 / 19 / 17 25 / NA / NA

27 < θ ≤ 45 64 / 57 / 45 58 / 52 / 41 53 / 47 / 38 48 / 43 / 34 41 / 37 / 29 35 / 32 / 25 31 / 27 / 22 27 / 24 / 19 21 / 19 / NA

45 < θ ≤ 90 72 72 68 62 53 45 39 34 27

θ < 7 72 / 72 / 60 72 / 72 / 55 72 / 71 / 50 72 / 64 / 46 72 / 54 / 38 64 / 47 / 33 55 / 40 / 29 48 / 35 / 25 38 / 28 / 20

7 < θ ≤ 20 72 / 64 / 53 72 / 58 / 48 72 / 53 / 44 72 / 49 / 40 63 / 41 / 34 54 / 35 / 29 47 / 31 / 25 41 / 27 / 22 32 / 21 / 17

20 < θ ≤ 27 72 / 72 / 69 72 / 71 / 63 72 / 64 / 57 72 / 59 / 52 72 / 50 / 44 72 / 43 / 38 63 / 37 / 33 55 / 32 / 29 43 / 25 / 22

27 < θ ≤ 45 72 / 72 / 72 72 / 72 / 70 72 / 72 / 64 72 / 72 / 58 69 / 62 / 49 59 / 53 / 42 51 / 46 / 37 45 / 40 / 32 35 / 32 / 25

45 < θ ≤ 90 72 72 72 72 72 72 66 58 45

θ < 7 72 / 60 / 42 72 / 54 / 38 68 / 49 / 35 62 / 45 / 32 52 / 38 / 27 45 / 33 / 23 39 / 28 / 20 34 / 25 / 18 27 / 19 / NA

7 < θ ≤ 20 69 / 45 / 37 63 / 41 / 34 57 / 37 / 31 52 / 34 / 28 44 / 29 / 24 38 / 25 / 21 33 / 22 / 18 29 / 19 / 16 22 / NA / NA

20 < θ ≤ 27 72 / 55 / 48 72 / 50 / 44 72 / 45 / 40 71 / 41 / 37 60 / 35 / 31 51 / 30 / 27 44 / 26 / 23 39 / 23 / 20 30 / 18 / 16

27 < θ ≤ 45 72 / 68 / 54 69 / 62 / 49 63 / 57 / 45 58 / 52 / 41 49 / 44 / 35 42 / 38 / 30 36 / 33 / 26 32 / 29 / 23 25 / 22 / 18

45 < θ ≤ 90 72 72 72 72 63 54 47 41 32

θ < 7 69 / 50 / 42 63 / 50 / 38 57 / 41 / 29 52 / 38 / 27 44 / 32 / 23 38 / 27 / 19 33 / 24 / 17 29 / 21 / NA 22 / 16 / NA

7 < θ ≤ 20 58 / 38 / 31 53 / 34 / 28 48 / 31 / 26 44 / 29 / 24 37 / 24 / 20 32 / 21 / 17 28 / 18 / NA 24 / 16 / NA 19 / NA / NA

20 < θ ≤ 27 72 / 46 / 41 71 / 42 / 37 65 / 38 / 34 59 / 35 / 31 50 / 29 / 26 43 / 25 / 22 37 / 22 / 19 32 / 19 / 17 25 / NA / NA

27 < θ ≤ 45 64 / 57 / 45 58 / 52 / 41 53 / 47 / 38 48 / 43 / 34 41 / 37 / 29 35 / 32 / 25 31 / 27 / 22 27 / 24 / 19 21 / 19 / NA

45 < θ ≤ 90 72 72 68 62 53 45 39 34 27

θ < 7 72 / 72 / 60 72 / 72 / 55 72 / 71 / 50 72 / 64 / 46 72 / 54 / 38 64 / 47 / 33 55 / 40 / 29 48 / 35 / 25 38 / 28 / 20

7 < θ ≤ 20 72 / 64 / 53 72 / 58 / 48 72 / 53 / 44 72 / 49 / 40 63 / 41 / 34 54 / 35 / 29 47 / 31 / 25 41 / 27 / 22 32 / 21 / 17

20 < θ ≤ 27 72 / 72 / 69 72 / 71 / 63 72 / 64 / 57 72 / 59 / 52 72 / 50 / 44 72 / 43 / 38 63 / 37 / 33 55 / 32 / 29 43 / 25 / 22

27 < θ ≤ 45 72 / 72 / 72 72 / 72 / 70 72 / 72 / 64 72 / 72 / 58 69 / 62 / 49 59 / 53 / 42 51 / 46 / 37 45 / 40 / 32 35 / 32 / 25

45 < θ ≤ 90 72 72 72 72 72 72 66 58 45

θ < 7 72 / 60 / 42 72 / 54 / 38 68 / 49 / 35 62 / 45 / 32 52 / 38 / 27 45 / 33 / 23 39 / 28 / 20 34 / 25 / 18 27 / 19 / NA

7 < θ ≤ 20 69 / 45 / 37 63 / 41 / 34 57 / 37 / 31 52 / 34 / 28 44 / 29 / 24 38 / 25 / 21 33 / 22 / 18 29 / 19 / 16 22 / NA / NA

20 < θ ≤ 27 72 / 55 / 48 72 / 50 / 44 72 / 45 / 40 71 / 41 / 37 60 / 35 / 31 51 / 30 / 27 44 / 26 / 23 39 / 23 / 20 30 / 18 / 16

27 < θ ≤ 45 72 / 68 / 54 69 / 62 / 49 63 / 57 / 45 58 / 52 / 41 49 / 44 / 35 42 / 38 / 30 36 / 33 / 26 32 / 29 / 23 25 / 22 / 18

45 < θ ≤ 90 72 72 72 72 63 54 47 41 32

θ < 7 69 / 50 / 42 63 / 50 / 38 57 / 41 / 29 52 / 38 / 27 44 / 32 / 23 38 / 27 / 19 33 / 24 / 17 29 / 21 / NA 22 / 16 / NA

7 < θ ≤ 20 58 / 38 / 31 53 / 34 / 28 48 / 31 / 26 44 / 29 / 24 37 / 24 / 20 32 / 21 / 17 28 / 18 / NA 24 / 16 / NA 19 / NA / NA

20 < θ ≤ 27 72 / 46 / 41 71 / 42 / 37 65 / 38 / 34 59 / 35 / 31 50 / 29 / 26 43 / 25 / 22 37 / 22 / 19 32 / 19 / 17 25 / NA / NA

27 < θ ≤ 45 64 / 57 / 45 58 / 52 / 41 53 / 47 / 38 48 / 43 / 34 41 / 37 / 29 35 / 32 / 25 31 / 27 / 22 27 / 24 / 19 21 / 19 / NA

45 < θ ≤ 90 72 72 68 62 53 45 39 34 27

Snow

Load

Exposure

Category

Roof Pitch

(Degrees)

Wind Speed (MPH)

B

C

D

0 PSF

10 PSF

B

C

D

20 PSF

B

C

D

25 PSF

B

C

D

5 of 20



105 110 115 120 130 140 150 160 180

θ < 7 72 / 72 / 60 72 / 72 / 55 72 / 71 / 50 72 / 64 / 46 72 / 54 / 38 64 / 47 / 33 55 / 40 / 29 48 / 35 / 25 38 / 28 / 20

7 < θ ≤ 20 72 / 64 / 53 72 / 58 / 48 72 / 53 / 44 72 / 49 / 40 63 / 41 / 34 54 / 35 / 29 47 / 31 / 25 41 / 27 / 22 32 / 21 / 17

20 < θ ≤ 27 72 / 72 / 69 72 / 71 / 63 72 / 64 / 57 72 / 59 / 52 72 / 50 / 44 72 / 43 / 38 63 / 37 / 33 55 / 32 / 29 43 / 25 / 22

27 < θ ≤ 45 72 / 72 / 72 72 / 72 / 70 72 / 72 / 64 72 / 72 / 58 69 / 62 / 49 59 / 53 / 42 51 / 46 / 37 45 / 40 / 32 35 / 32 / 25

45 < θ ≤ 90 72 72 72 72 72 72 66 58 45

θ < 7 72 / 60 / 42 72 / 54 / 38 68 / 49 / 35 62 / 45 / 32 52 / 38 / 27 45 / 33 / 23 39 / 28 / 20 34 / 25 / 18 27 / 19 / NA

7 < θ ≤ 20 69 / 45 / 37 63 / 41 / 34 57 / 37 / 31 52 / 34 / 28 44 / 29 / 24 38 / 25 / 21 33 / 22 / 18 29 / 19 / 16 22 / NA / NA

20 < θ ≤ 27 72 / 55 / 48 72 / 50 / 44 72 / 45 / 40 71 / 41 / 37 60 / 35 / 31 51 / 30 / 27 44 / 26 / 23 39 / 23 / 20 30 / 18 / 16

27 < θ ≤ 45 72 / 68 / 54 69 / 62 / 49 63 / 57 / 45 58 / 52 / 41 49 / 44 / 35 42 / 38 / 30 36 / 33 / 26 32 / 29 / 23 25 / 22 / 18

45 < θ ≤ 90 72 72 72 72 63 54 47 41 32

θ < 7 69 / 50 / 42 63 / 50 / 38 57 / 41 / 29 52 / 38 / 27 44 / 32 / 23 38 / 27 / 19 33 / 24 / 17 29 / 21 / NA 22 / 16 / NA

7 < θ ≤ 20 58 / 38 / 31 53 / 34 / 28 48 / 31 / 26 44 / 29 / 24 37 / 24 / 20 32 / 21 / 17 28 / 18 / NA 24 / 16 / NA 19 / NA / NA

20 < θ ≤ 27 72 / 46 / 41 71 / 42 / 37 65 / 38 / 34 59 / 35 / 31 50 / 29 / 26 43 / 25 / 22 37 / 22 / 19 32 / 19 / 17 25 / NA / NA

27 < θ ≤ 45 64 / 57 / 45 58 / 52 / 41 53 / 47 / 38 48 / 43 / 34 41 / 37 / 29 35 / 32 / 25 31 / 27 / 22 27 / 24 / 19 21 / 19 / NA

45 < θ ≤ 90 72 72 68 62 53 45 39 34 27

θ < 7 72 / 72 / 60 72 / 72 / 55 72 / 71 / 50 72 / 64 / 46 72 / 54 / 38 64 / 47 / 33 55 / 40 / 29 48 / 35 / 25 38 / 28 / 20

7 < θ ≤ 20 72 / 64 / 53 72 / 58 / 48 72 / 53 / 44 72 / 49 / 40 63 / 41 / 34 54 / 35 / 29 47 / 31 / 25 41 / 27 / 22 32 / 21 / 17

20 < θ ≤ 27 72 / 72 / 69 72 / 71 / 63 72 / 64 / 57 72 / 59 / 52 72 / 50 / 44 72 / 43 / 38 63 / 37 / 33 55 / 32 / 29 43 / 25 / 22

27 < θ ≤ 45 72 / 72 / 72 72 / 72 / 70 72 / 72 / 64 72 / 72 / 58 69 / 62 / 49 59 / 53 / 42 51 / 46 / 37 45 / 40 / 32 35 / 32 / 25

45 < θ ≤ 90 72 72 72 72 72 72 66 58 45

θ < 7 72 / 60 / 42 72 / 54 / 38 68 / 49 / 35 62 / 45 / 32 52 / 38 / 27 45 / 33 / 23 39 / 28 / 20 34 / 25 / 18 27 / 19 / NA

7 < θ ≤ 20 69 / 45 / 37 63 / 41 / 34 57 / 37 / 31 52 / 34 / 28 44 / 29 / 24 38 / 25 / 21 33 / 22 / 18 29 / 19 / 16 22 / NA / NA

20 < θ ≤ 27 72 / 55 / 48 72 / 50 / 44 72 / 45 / 40 71 / 41 / 37 60 / 35 / 31 51 / 30 / 27 44 / 26 / 23 39 / 23 / 20 30 / 18 / 16

27 < θ ≤ 45 72 / 68 / 54 69 / 62 / 49 63 / 57 / 45 58 / 52 / 41 49 / 44 / 35 42 / 38 / 30 36 / 33 / 26 32 / 29 / 23 25 / 22 / 18

45 < θ ≤ 90 72 72 72 72 63 54 47 41 32

θ < 7 69 / 50 / 42 63 / 50 / 38 57 / 41 / 29 52 / 38 / 27 44 / 32 / 23 38 / 27 / 19 33 / 24 / 17 29 / 21 / NA 22 / 16 / NA

7 < θ ≤ 20 58 / 38 / 31 53 / 34 / 28 48 / 31 / 26 44 / 29 / 24 37 / 24 / 20 32 / 21 / 17 28 / 18 / NA 24 / 16 / NA 19 / NA / NA

20 < θ ≤ 27 72 / 46 / 41 71 / 42 / 37 65 / 38 / 34 59 / 35 / 31 50 / 29 / 26 43 / 25 / 22 37 / 22 / 19 32 / 19 / 17 25 / NA / NA

27 < θ ≤ 45 64 / 57 / 45 58 / 52 / 41 53 / 47 / 38 48 / 43 / 34 41 / 37 / 29 35 / 32 / 25 31 / 27 / 22 27 / 24 / 19 21 / 19 / NA

45 < θ ≤ 90 72 72 68 62 53 45 39 34 27

θ < 7 72 / 72 / 60 72 / 72 / 55 72 / 71 / 50 72 / 64 / 46 72 / 54 / 38 64 / 47 / 33 55 / 40 / 29 48 / 35 / 25 38 / 28 / 20

7 < θ ≤ 20 72 / 64 / 53 72 / 58 / 48 72 / 53 / 44 72 / 49 / 40 63 / 41 / 34 54 / 35 / 29 47 / 31 / 25 41 / 27 / 22 32 / 21 / 17

20 < θ ≤ 27 72 / 72 / 69 72 / 71 / 63 72 / 64 / 57 72 / 59 / 52 72 / 50 / 44 71 / 43 / 38 63 / 37 / 33 55 / 32 / 29 43 / 25 / 22

27 < θ ≤ 45 72 / 72 / 72 72 / 72 / 70 72 / 72 / 64 72 / 72 / 58 69 / 62 / 49 59 / 53 / 42 51 / 46 / 37 45 / 40 / 32 35 / 32 / 25

45 < θ ≤ 90 72 72 72 72 72 72 66 58 45

θ < 7 72 / 60 / 42 72 / 54 / 38 68 / 49 / 35 62 / 45 / 32 52 / 38 / 27 45 / 33 / 23 39 / 28 / 20 34 / 25 / 18 27 / 19 / NA

7 < θ ≤ 20 69 / 45 / 37 63 / 41 / 34 57 / 37 / 31 52 / 34 / 28 44 / 29 / 24 38 / 25 / 21 33 / 22 / 18 29 / 19 / 16 22 / NA / NA

20 < θ ≤ 27 72 / 55 / 48 72 / 50 / 44 72 / 45 / 40 70 / 41 / 37 60 / 35 / 31 51 / 30 / 27 44 / 26 / 23 39 / 23 / 20 30 / 18 / 16

27 < θ ≤ 45 72 / 68 / 54 69 / 62 / 49 63 / 57 / 45 58 / 52 / 41 49 / 44 / 35 42 / 38 / 30 36 / 33 / 26 32 / 29 / 23 25 / 22 / 18

45 < θ ≤ 90 72 72 72 72 63 54 47 41 32

θ < 7 69 / 50 / 42 63 / 50 / 38 57 / 41 / 29 52 / 38 / 27 44 / 32 / 23 38 / 27 / 19 33 / 24 / 17 29 / 21 / NA 22 / 16 / NA

7 < θ ≤ 20 58 / 38 / 31 53 / 34 / 28 48 / 31 / 26 44 / 29 / 24 37 / 24 / 20 32 / 21 / 17 28 / 18 / NA 24 / 16 / NA 19 / NA / NA

20 < θ ≤ 27 72 / 46 / 41 70 / 42 / 37 65 / 38 / 34 59 / 35 / 31 50 / 29 / 26 43 / 25 / 22 37 / 22 / 19 32 / 19 / 17 25 / NA / NA

27 < θ ≤ 45 64 / 57 / 45 58 / 52 / 41 53 / 47 / 38 48 / 43 / 34 41 / 37 / 29 35 / 32 / 25 31 / 27 / 22 27 / 24 / 19 21 / 19 / NA

45 < θ ≤ 90 72 72 68 62 53 45 39 34 27

θ < 7 59 / 59 / 59 59 / 59 / 55 59 / 59 / 50 59 / 59 / 46 59 / 54 / 38 59 / 47 / 33 55 / 40 / 29 48 / 35 / 25 38 / 28 / 20

7 < θ ≤ 20 62 / 62 / 53 62 / 58 / 48 62 / 53 / 44 62 / 49 / 40 59 / 54 / 38 59 / 47 / 33 55 / 40 / 29 48 / 35 / 25 38 / 28 / 20

20 < θ ≤ 27 66 / 66 / 66 66 / 66 / 63 66 / 64 / 57 66 / 59 / 52 64 / 50 / 44 61 / 43 / 38 59 / 37 / 33 55 / 32 / 29 43 / 25 / 22

27 < θ ≤ 45 61 / 61 / 61 61 / 61 / 61 61 / 61 / 61 61 / 61 / 58 61 / 61 / 49 59 / 53 / 42 51 / 46 / 37 45 / 40 / 32 35 / 32 / 25

45 < θ ≤ 90 70 70 70 70 70 70 66 58 45

θ < 7 59 / 59 / 42 59 / 54 / 38 59 / 49 / 35 59 / 45 / 32 52 / 38 / 27 45 / 33 / 23 39 / 28 / 20 34 / 25 / 18 27 / 19 / NA

7 < θ ≤ 20 62 / 45 / 37 62 / 41 / 34 57 / 37 / 31 52 / 34 / 28 44 / 29 / 24 38 / 25 / 21 33 / 22 / 18 29 / 19 / 16 22 / NA / NA

20 < θ ≤ 27 65 / 55 / 48 64 / 50 / 44 62 / 45 / 40 61 / 41 / 37 58 / 35 / 31 51 / 30 / 27 44 / 26 / 23 39 / 23 / 20 30 / 18 / 16

27 < θ ≤ 45 61 / 61 / 54 61 / 61 / 49 61 / 57 / 45 58 / 52 / 41 49 / 44 / 35 42 / 38 / 30 36 / 33 / 26 32 / 29 / 23 25 / 22 / 18

45 < θ ≤ 90 70 70 70 70 63 54 47 41 32

θ < 7 59 / 50 / 42 59 / 50 / 38 57 / 41 / 29 52 / 38 / 27 44 / 32 / 23 38 / 27 / 19 33 / 24 / 17 29 / 21 / NA 22 / 16 / NA

7 < θ ≤ 20 58 / 38 / 31 53 / 34 / 28 48 / 31 / 26 44 / 29 / 24 37 / 24 / 20 32 / 21 / 17 28 / 18 / NA 24 / 16 / NA 19 / NA / NA

20 < θ ≤ 27 63 / 46 / 41 61 / 42 / 37 59 / 38 / 34 58 / 35 / 31 50 / 29 / 26 43 / 25 / 22 37 / 22 / 19 32 / 19 / 17 25 / NA / NA

27 < θ ≤ 45 61 / 57 / 45 58 / 52 / 41 53 / 47 / 38 48 / 43 / 34 41 / 37 / 29 35 / 32 / 25 31 / 27 / 22 27 / 24 / 19 21 / 19 / NA

45 < θ ≤ 90 70 70 68 62 53 45 39 34 27

30 PSF

B

C

D

35 PSF

B

C

D

Snow

Load

Exposure

Category

Roof Pitch

(Degrees)

Wind Speed (MPH)

40 PSF

B

C

D

50 PSF

B

C

D

6 of 20



105 110 115 120 130 140 150 160 180

θ < 7 50 / 50 / 50 50 / 50 / 50 50 / 50 / 50 50 / 50 / 46 50 / 50 / 38 50 / 47 / 33 50 / 40 / 29 48 / 35 / 25 38 / 28 / 20

7 < θ ≤ 20 53 / 53 / 53 53 / 53 / 48 53 / 53 / 44 53 / 49 / 40 53 / 41 / 34 53 / 35 / 29 47 / 31 / 25 41 / 27 / 22 32 / 21 / 17

20 < θ ≤ 27 55 / 55 / 55 55 / 55 / 55 55 / 55 / 55 55 / 55 / 52 55 / 50 / 44 54 / 43 / 38 52 / 37 / 33 50 / 32 / 29 43 / 25 / 22

27 < θ ≤ 45 51 / 51 / 51 51 / 51 / 51 51 / 51 / 51 51 / 51 / 51 51 / 51 / 49 51 / 51 / 42 51 / 46 / 37 45 / 40 / 32 35 / 32 / 25

45 < θ ≤ 90 61 61 61 61 61 61 61 58 45

θ < 7 50 / 50 / 42 50 / 50 / 38 50 / 49 / 35 50 / 45 / 32 50 / 38 / 27 45 / 33 / 23 39 / 28 / 20 34 / 25 / 18 27 / 19 / NA

7 < θ ≤ 20 53 / 45 / 37 53 / 41 / 34 53 / 37 / 31 52 / 34 / 28 44 / 29 / 24 38 / 25 / 21 33 / 22 / 18 29 / 19 / 16 22 / NA / NA

20 < θ ≤ 27 55 / 55 / 48 55 / 50 / 44 55 / 45 / 40 54 / 41 / 37 52 / 35 / 31 49 / 30 / 27 44 / 26 / 23 39 / 23 / 20 30 / 18 / 16

27 < θ ≤ 45 51 / 51 / 51 51 / 51 / 49 51 / 51 / 45 51 / 51 / 41 49 / 44 / 35 42 / 38 / 30 36 / 33 / 26 32 / 29 / 23 25 / 22 / 18

45 < θ ≤ 90 61 61 61 61 61 54 47 41 32

θ < 7 50 / 50 / 42 50 / 50 / 38 50 / 41 / 29 50 / 38 / 27 44 / 32 / 23 38 / 27 / 19 33 / 24 / 17 29 / 21 / NA 22 / 16 / NA

7 < θ ≤ 20 53 / 38 / 31 53 / 34 / 28 48 / 31 / 26 44 / 29 / 24 37 / 24 / 20 32 / 21 / 17 28 / 18 / NA 24 / 16 / NA 19 / NA / NA

20 < θ ≤ 27 55 / 46 / 41 54 / 42 / 37 53 / 38 / 34 51 / 35 / 31 49 / 29 / 26 43 / 25 / 22 37 / 22 / 19 32 / 19 / 17 25 / NA / NA

27 < θ ≤ 45 51 / 51 / 45 51 / 51 / 41 51 / 47 / 38 48 / 43 / 34 41 / 37 / 29 35 / 32 / 25 31 / 27 / 22 27 / 24 / 19 21 / 19 / NA

45 < θ ≤ 90 61 61 61 61 53 45 39 34 27

θ < 7 43 / 43 / 43 43 / 43 / 43 43 / 43 / 43 43 / 43 / 43 43 / 43 / 38 43 / 43 / 33 43 / 40 / 29 43 / 35 / 25 38 / 28 / 20

7 < θ ≤ 20 46 / 46 / 46 46 / 46 / 46 46 / 46 / 44 46 / 46 / 40 46 / 41 / 34 46 / 35 / 29 46 / 31 / 25 41 / 27 / 22 32 / 21 / 17

20 < θ ≤ 27 48 / 48 / 48 48 / 48 / 48 48 / 48 / 48 48 / 48 / 48 48 / 48 / 44 48 / 43 / 38 47 / 37 / 33 45 / 32 / 29 42 / 25 / 22

27 < θ ≤ 45 44 / 44 / 44 44 / 44 / 44 44 / 44 / 44 44 / 44 / 44 44 / 44 / 44 44 / 44 / 42 44 / 44 / 37 44 / 40 / 32 35 / 32 / 25

45 < θ ≤ 90 53 53 53 53 53 53 53 53 45

θ < 7 43 / 43 / 42 43 / 43 / 38 43 / 43 / 35 43 / 43 / 32 43 / 38 / 27 43 / 33 / 23 39 / 28 / 20 34 / 25 / 18 27 / 19 / NA

7 < θ ≤ 20 46 / 45 / 37 46 / 41 / 34 46 / 37 / 31 46 / 34 / 28 44 / 29 / 24 38 / 25 / 21 33 / 22 / 18 29 / 19 / 16 22 / NA / NA

20 < θ ≤ 27 48 / 48 / 48 48 / 48 / 44 48 / 45 / 40 48 / 41 / 37 46 / 35 / 31 45 / 30 / 27 43 / 26 / 23 39 / 23 / 20 30 / 18 / 16

27 < θ ≤ 45 44 / 44 / 44 44 / 44 / 44 44 / 44 / 44 44 / 44 / 41 44 / 44 / 35 42 / 38 / 30 36 / 33 / 26 32 / 29 / 23 25 / 22 / 18

45 < θ ≤ 90 53 53 53 53 53 53 47 41 32

θ < 7 43 / 43 / 42 43 / 43 / 38 43 / 41 / 29 43 / 38 / 27 43 / 32 / 23 38 / 27 / 19 33 / 24 / 17 29 / 21 / NA 22 / 16 / NA

7 < θ ≤ 20 46 / 38 / 31 46 / 34 / 28 46 / 31 / 26 44 / 29 / 24 37 / 24 / 20 32 / 21 / 17 28 / 18 / NA 24 / 16 / NA 19 / NA / NA

20 < θ ≤ 27 48 / 46 / 41 48 / 42 / 37 47 / 38 / 34 46 / 35 / 31 44 / 29 / 26 42 / 25 / 22 37 / 22 / 19 32 / 19 / 17 25 / NA / NA

27 < θ ≤ 45 44 / 44 / 44 44 / 44 / 41 44 / 44 / 38 44 / 43 / 34 41 / 37 / 29 35 / 32 / 25 31 / 27 / 22 27 / 24 / 19 21 / 19 / NA

45 < θ ≤ 90 53 53 53 53 53 45 39 34 27

θ < 7 38 / 38 / 38 38 / 38 / 38 38 / 38 / 38 38 / 38 / 38 38 / 38 / 38 38 / 38 / 33 38 / 38 / 29 38 / 35 / 25 38 / 28 / 20

7 < θ ≤ 20 40 / 40 / 40 40 / 40 / 40 40 / 40 / 40 40 / 40 / 40 40 / 40 / 34 40 / 35 / 29 40 / 31 / 25 40 / 27 / 22 32 / 21 / 17

20 < θ ≤ 27 42 / 42 / 42 42 / 42 / 42 42 / 42 / 42 42 / 42 / 42 42 / 42 / 42 42 / 42 / 38 42 / 37 / 33 41 / 32 / 29 39 / 25 / 22

27 < θ ≤ 45 39 / 39 / 39 39 / 39 / 39 39 / 39 / 39 39 / 39 / 39 39 / 39 / 39 39 / 39 / 39 39 / 39 / 37 39 / 39 / 32 35 / 32 / 25

45 < θ ≤ 90 47 47 47 47 47 47 47 47 45

θ < 7 38 / 38 / 38 38 / 38 / 38 38 / 38 / 35 38 / 38 / 32 38 / 38 / 27 38 / 33 / 23 38 / 28 / 20 34 / 25 / 18 27 / 19 / NA

7 < θ ≤ 20 40 / 40 / 37 40 / 40 / 34 40 / 37 / 31 40 / 34 / 28 40 / 29 / 24 38 / 25 / 21 33 / 22 / 18 29 / 19 / 16 22 / NA / NA

20 < θ ≤ 27 42 / 42 / 42 42 / 42 / 42 42 / 42 / 40 42 / 41 / 37 42 / 35 / 31 41 / 30 / 27 39 / 26 / 23 38 / 23 / 20 30 / 18 / 16

27 < θ ≤ 45 39 / 39 / 39 39 / 39 / 39 39 / 39 / 39 39 / 39 / 39 39 / 39 / 35 39 / 38 / 30 36 / 33 / 26 32 / 29 / 23 25 / 22 / 18

45 < θ ≤ 90 47 47 47 47 47 47 47 41 32

θ < 7 38 / 38 / 38 38 / 38 / 38 38 / 38 / 29 38 / 38 / 27 38 / 32 / 23 38 / 27 / 19 33 / 24 / 17 29 / 21 / NA 22 / 16 / NA

7 < θ ≤ 20 40 / 38 / 31 40 / 34 / 28 40 / 31 / 26 40 / 29 / 24 37 / 24 / 20 32 / 21 / 17 28 / 18 / NA 24 / 16 / NA 19 / NA / NA

20 < θ ≤ 27 42 / 42 / 41 42 / 42 / 37 42 / 38 / 34 42 / 35 / 31 40 / 29 / 26 39 / 25 / 22 37 / 22 / 19 32 / 19 / 17 25 / NA / NA

27 < θ ≤ 45 39 / 39 / 39 39 / 39 / 39 39 / 39 / 38 39 / 39 / 34 39 / 37 / 29 35 / 32 / 25 31 / 27 / 22 27 / 24 / 19 21 / 19 / NA

45 < θ ≤ 90 47 47 47 47 47 45 39 34 27

θ < 7 34 / 34 / 34 34 / 34 / 34 34 / 34 / 34 34 / 34 / 34 34 / 34 / 34 34 / 34 / 33 34 / 34 / 29 34 / 34 / 25 34 / 28 / 20

7 < θ ≤ 20 36 / 36 / 36 36 / 36 / 36 36 / 36 / 36 36 / 36 / 36 36 / 36 / 34 36 / 35 / 29 36 / 31 / 25 36 / 27 / 22 32 / 21 / 17

20 < θ ≤ 27 38 / 38 / 38 38 / 38 / 38 38 / 38 / 38 38 / 38 / 38 38 / 38 / 38 38 / 38 / 38 38 / 37 / 33 38 / 32 / 29 36 / 25 / 22

27 < θ ≤ 45 35 / 35 / 35 35 / 35 / 35 35 / 35 / 35 35 / 35 / 35 35 / 35 / 35 35 / 35 / 35 35 / 35 / 35 35 / 35 / 32 35 / 32 / 25

45 < θ ≤ 90 43 43 43 43 43 43 43 43 43

θ < 7 34 / 34 / 34 34 / 34 / 34 34 / 34 / 34 34 / 34 / 32 34 / 34 / 27 34 / 33 / 23 34 / 28 / 20 34 / 25 / 18 27 / 19 / NA

7 < θ ≤ 20 36 / 36 / 36 36 / 36 / 34 36 / 36 / 31 36 / 34 / 28 36 / 29 / 24 36 / 25 / 21 33 / 22 / 18 29 / 19 / 16 22 / NA / NA

20 < θ ≤ 27 38 / 38 / 38 38 / 38 / 38 38 / 38 / 38 38 / 38 / 37 38 / 35 / 31 37 / 30 / 27 36 / 26 / 23 35 / 23 / 20 30 / 18 / 16

27 < θ ≤ 45 35 / 35 / 35 35 / 35 / 35 35 / 35 / 35 35 / 35 / 35 35 / 35 / 35 35 / 35 / 30 35 / 33 / 26 32 / 29 / 23 25 / 22 / 18

45 < θ ≤ 90 43 43 43 43 43 43 43 41 32

θ < 7 34 / 34 / 34 34 / 34 / 34 34 / 34 / 29 34 / 34 / 27 34 / 32 / 23 34 / 27 / 19 33 / 24 / 17 29 / 21 / NA 22 / 16 / NA

7 < θ ≤ 20 36 / 36 / 31 36 / 34 / 28 36 / 31 / 26 36 / 29 / 24 36 / 24 / 20 32 / 21 / 17 28 / 18 / NA 24 / 16 / NA 19 / NA / NA

20 < θ ≤ 27 38 / 38 / 38 38 / 38 / 37 38 / 38 / 34 38 / 35 / 31 37 / 29 / 26 36 / 25 / 22 34 / 22 / 19 32 / 19 / 17 25 / NA / NA

27 < θ ≤ 45 35 / 35 / 35 35 / 35 / 35 35 / 35 / 35 35 / 35 / 34 35 / 35 / 29 35 / 32 / 25 31 / 27 / 22 27 / 24 / 19 21 / 19 / NA

45 < θ ≤ 90 43 43 43 43 43 43 39 34 27

60 PSF

B

C

D

70 PSF

B

C

D

80 PSF

B

C

D

90 PSF

B

C

D

Snow

Load

Exposure

Category

Roof Pitch

(Degrees)

Wind Speed (MPH)

7 of 20



105 110 115 120 130 140 150 160 180

θ < 7 72 / 70 / 49 72 / 63 / 45 72 / 57 / 41 72 / 53 / 37 61 / 44 / 31 52 / 38 / 27 45 / 33 / 23 39 / 29 / 20 31 / 23 / 16

7 < θ ≤ 20 72 / 52 / 43 72 / 48 / 39 66 / 43 / 36 61 / 40 / 33 51 / 34 / 28 44 / 29 / 24 38 / 25 / 21 33 / 22 / 18 26 / 17 / NA

20 < θ ≤ 27 72 / 63 / 56 72 / 57 / 51 72 / 52 / 47 72 / 48 / 43 69 / 41 / 36 59 / 35 / 31 51 / 30 / 27 45 / 26 / 23 35 / 21 / 18

27 < θ ≤ 45 72 / 72 / 63 72 / 72 / 57 72 / 66 / 52 67 / 60 / 48 57 / 51 / 40 49 / 44 / 35 42 / 38 / 30 37 / 33 / 26 29 / 26 / 21

45 < θ ≤ 90 72 72 72 72 72 62 54 47 37

θ < 7 71 / 52 / 36 64 / 47 / 33 59 / 51 / 30 53 / 72 / 28 45 / 43 / 23 39 / 46 / 20 34 / 72 / 17 29 / 39 / NA 23 / 42 / NA

7 < θ ≤ 20 60 / 39 / 32 54 / 35 / 29 49 / 32 / 27 45 / 29 / 24 38 / 25 / 21 33 / 21 / 18 28 / 19 / NA 25 / 16 / NA 19 / NA / NA

20 < θ ≤ 27 72 / 47 / 42 72 / 43 / 38 66 / 39 / 35 61 / 36 / 32 51 / 30 / 27 44 / 26 / 23 38 / 22 / 20 33 / 20 / 17 26 / NA / NA

27 < θ ≤ 45 66 / 59 / 47 60 / 53 / 42 54 / 49 / 39 50 / 45 / 35 42 / 38 / 30 36 / 32 / 26 31 / 28 / 22 27 / 25 / 20 21 / 19 / NA

45 < θ ≤ 90 72 72 70 64 54 47 40 35 28

θ < 7 61 / 44 / 31 55 / 40 / 28 50 / 36 / 26 46 / 33 / 24 39 / 28 / 20 33 / 24 / 17 29 / 21 / NA 25 / 18 / NA 20 / NA / NA

7 < θ ≤ 20 51 / 33 / 28 46 / 30 / 25 42 / 28 / 23 39 / 25 / 21 33 / 21 / 18 28 / 18 / NA 24 / 16 / NA 21 / NA / NA 17 / NA / NA

20 < θ ≤ 27 69 / 40 / 36 62 / 37 / 33 57 / 33 / 30 52 / 31 / 27 44 / 26 / 23 38 / 22 / 20 33 / 19 / 17 29 / 17 / NA 22 / NA / NA

27 < θ ≤ 45 56 / 51 / 40 51 / 46 / 36 47 / 42 / 33 43 / 38 / 30 36 / 32 / 26 31 / 28 / 22 27 / 24 / 19 24 / 21 / 17 18 / 17 / NA

45 < θ ≤ 90 72 66 60 55 47 40 35 30 24

θ < 7 72 / 70 / 49 72 / 63 / 45 72 / 57 / 41 72 / 53 / 37 61 / 44 / 31 52 / 38 / 27 45 / 33 / 23 39 / 29 / 20 31 / 23 / 16

7 < θ ≤ 20 72 / 52 / 43 72 / 48 / 39 66 / 43 / 36 61 / 40 / 33 51 / 34 / 28 44 / 29 / 24 38 / 25 / 21 33 / 22 / 18 26 / 17 / NA

20 < θ ≤ 27 72 / 63 / 56 72 / 57 / 51 72 / 52 / 47 72 / 48 / 43 69 / 41 / 36 59 / 35 / 31 51 / 30 / 27 45 / 26 / 23 35 / 21 / 18

27 < θ ≤ 45 72 / 72 / 63 72 / 72 / 57 72 / 66 / 52 67 / 60 / 48 57 / 51 / 40 49 / 44 / 35 42 / 38 / 30 37 / 33 / 26 29 / 26 / 21

45 < θ ≤ 90 72 72 72 72 72 62 54 47 37

θ < 7 71 / 52 / 36 64 / 47 / 33 59 / 43 / 30 53 / 39 / 28 45 / 33 / 23 39 / 28 / 20 34 / 24 / 17 29 / 21 / NA 23 / 17 / NA

7 < θ ≤ 20 60 / 39 / 32 54 / 35 / 29 49 / 32 / 27 45 / 29 / 24 38 / 25 / 21 33 / 21 / 18 28 / 19 / NA 25 / 16 / NA 19 / NA / NA

20 < θ ≤ 27 72 / 47 / 42 72 / 43 / 38 66 / 39 / 35 61 / 36 / 32 51 / 30 / 27 44 / 26 / 23 38 / 22 / 20 33 / 20 / 17 26 / NA / NA

27 < θ ≤ 45 66 / 59 / 47 60 / 53 / 42 54 / 49 / 39 50 / 45 / 35 42 / 38 / 30 36 / 32 / 26 31 / 28 / 22 27 / 25 / 20 21 / 19 / NA

45 < θ ≤ 90 72 72 70 64 54 47 40 35 28

θ < 7 61 / 44 / 31 55 / 40 / 28 50 / 36 / 26 46 / 33 / 24 39 / 28 / 20 33 / 24 / 17 29 / 21 / NA 25 / 18 / NA 20 / NA / NA

7 < θ ≤ 20 51 / 33 / 28 46 / 30 / 25 42 / 28 / 23 39 / 25 / 21 33 / 21 / 18 28 / 18 / NA 24 / 16 / NA 21 / NA / NA 17 / NA / NA

20 < θ ≤ 27 69 / 40 / 36 62 / 37 / 33 57 / 33 / 30 52 / 31 / 27 44 / 26 / 23 38 / 22 / 20 33 / 19 / 17 29 / 17 / NA 22 / NA / NA

27 < θ ≤ 45 56 / 51 / 40 51 / 46 / 36 47 / 42 / 33 43 / 38 / 30 36 / 32 / 26 31 / 28 / 22 27 / 24 / 19 24 / 21 / 17 18 / 17 / NA

45 < θ ≤ 90 72 66 60 55 47 40 35 30 24

θ < 7 72 / 70 / 49 72 / 63 / 45 72 / 57 / 41 72 / 53 / 37 61 / 44 / 31 52 / 38 / 27 45 / 33 / 23 39 / 29 / 20 31 / 23 / 16

7 < θ ≤ 20 72 / 52 / 43 72 / 48 / 39 66 / 43 / 36 61 / 40 / 33 51 / 34 / 28 44 / 29 / 24 38 / 25 / 21 33 / 22 / 18 26 / 17 / NA

20 < θ ≤ 27 72 / 63 / 56 72 / 57 / 51 72 / 52 / 47 72 / 48 / 43 69 / 41 / 36 59 / 35 / 31 51 / 30 / 27 45 / 26 / 23 35 / 21 / 18

27 < θ ≤ 45 72 / 72 / 63 72 / 72 / 57 72 / 66 / 52 67 / 60 / 48 57 / 51 / 40 49 / 44 / 35 42 / 38 / 30 37 / 33 / 26 29 / 26 / 21

45 < θ ≤ 90 72 72 72 72 72 62 54 47 37

θ < 7 71 / 52 / 36 64 / 47 / 33 59 / 43 / 30 53 / 39 / 28 45 / 33 / 23 39 / 28 / 20 34 / 24 / 17 29 / 21 / NA 23 / 17 / NA

7 < θ ≤ 20 60 / 39 / 32 54 / 35 / 29 49 / 32 / 27 45 / 29 / 24 38 / 25 / 21 33 / 21 / 18 28 / 19 / NA 25 / 16 / NA 19 / NA / NA

20 < θ ≤ 27 72 / 47 / 42 72 / 43 / 38 66 / 39 / 35 61 / 36 / 32 51 / 30 / 27 44 / 26 / 23 38 / 22 / 20 33 / 20 / 17 26 / NA / NA

27 < θ ≤ 45 66 / 59 / 47 60 / 53 / 42 54 / 49 / 39 50 / 45 / 35 42 / 38 / 30 36 / 32 / 26 31 / 28 / 22 27 / 25 / 20 21 / 19 / NA

45 < θ ≤ 90 72 72 70 64 54 47 40 35 28

θ < 7 61 / 44 / 31 55 / 40 / 28 50 / 36 / 26 46 / 33 / 24 39 / 28 / 20 33 / 24 / 17 29 / 21 / NA 25 / 18 / NA 20 / NA / NA

7 < θ ≤ 20 51 / 33 / 28 46 / 30 / 25 42 / 28 / 23 39 / 25 / 21 33 / 21 / 18 28 / 18 / NA 24 / 16 / NA 21 / NA / NA 17 / NA / NA

20 < θ ≤ 27 69 / 40 / 36 62 / 37 / 33 57 / 33 / 30 52 / 31 / 27 44 / 26 / 23 38 / 22 / 20 33 / 19 / 17 29 / 17 / NA 22 / NA / NA

27 < θ ≤ 45 56 / 51 / 40 51 / 46 / 36 47 / 42 / 33 43 / 38 / 30 36 / 32 / 26 31 / 28 / 22 27 / 24 / 19 24 / 21 / 17 18 / 17 / NA

45 < θ ≤ 90 72 66 60 55 47 40 35 30 24

θ < 7 72 / 70 / 49 72 / 63 / 45 72 / 57 / 41 72 / 53 / 37 61 / 44 / 31 52 / 38 / 27 45 / 33 / 23 39 / 29 / 20 31 / 23 / 16

7 < θ ≤ 20 72 / 52 / 43 72 / 48 / 39 66 / 43 / 36 61 / 40 / 33 51 / 34 / 28 44 / 29 / 24 38 / 25 / 21 33 / 22 / 18 26 / 17 / NA

20 < θ ≤ 27 72 / 63 / 56 72 / 57 / 51 72 / 52 / 47 72 / 48 / 43 69 / 41 / 36 59 / 35 / 31 51 / 30 / 27 45 / 26 / 23 35 / 21 / 18

27 < θ ≤ 45 72 / 72 / 63 72 / 72 / 57 72 / 66 / 52 67 / 60 / 48 57 / 51 / 40 49 / 44 / 35 42 / 38 / 30 37 / 33 / 26 29 / 26 / 21

45 < θ ≤ 90 72 72 72 72 72 62 54 47 37

θ < 7 71 / 52 / 36 64 / 47 / 33 59 / 43 / 30 53 / 39 / 28 45 / 33 / 23 39 / 28 / 20 34 / 24 / 17 29 / 21 / NA 23 / 17 / NA

7 < θ ≤ 20 60 / 39 / 32 54 / 35 / 29 49 / 32 / 27 45 / 29 / 24 38 / 25 / 21 33 / 21 / 18 28 / 19 / NA 25 / 16 / NA 19 / NA / NA

20 < θ ≤ 27 72 / 47 / 42 72 / 43 / 38 66 / 39 / 35 61 / 36 / 32 51 / 30 / 27 44 / 26 / 23 38 / 22 / 20 33 / 20 / 17 26 / NA / NA

27 < θ ≤ 45 66 / 59 / 47 60 / 53 / 42 54 / 49 / 39 50 / 45 / 35 42 / 38 / 30 36 / 32 / 26 31 / 28 / 22 27 / 25 / 20 21 / 19 / NA

45 < θ ≤ 90 72 72 70 64 54 47 40 35 28

θ < 7 61 / 44 / 31 55 / 40 / 28 50 / 36 / 26 46 / 33 / 24 39 / 28 / 20 33 / 24 / 17 29 / 21 / NA 25 / 18 / NA 20 / NA / NA

7 < θ ≤ 20 51 / 33 / 28 46 / 30 / 25 42 / 28 / 23 39 / 25 / 21 33 / 21 / 18 28 / 18 / NA 24 / 16 / NA 21 / NA / NA 17 / NA / NA

20 < θ ≤ 27 69 / 40 / 36 62 / 37 / 33 57 / 33 / 30 52 / 31 / 27 44 / 26 / 23 38 / 22 / 20 33 / 19 / 17 29 / 17 / NA 22 / NA / NA

27 < θ ≤ 45 56 / 51 / 40 51 / 46 / 36 47 / 42 / 33 43 / 38 / 30 36 / 32 / 26 31 / 28 / 22 27 / 24 / 19 24 / 21 / 17 18 / 17 / NA

45 < θ ≤ 90 72 66 60 55 47 40 35 30 24

Snow

Load

Exposure

Category

Roof Pitch

(Degrees)

Wind Speed (MPH)

0 PSF

B

C

D

10 PSF

B

C

D

20 PSF

B

C

D

25 PSF

B

C

D

8 of 20



105 110 115 120 130 140 150 160 180

θ < 7 72 / 70 / 49 72 / 63 / 45 72 / 57 / 41 72 / 53 / 37 61 / 44 / 31 52 / 38 / 27 45 / 33 / 23 39 / 29 / 20 31 / 23 / 16

7 < θ ≤ 20 72 / 52 / 43 72 / 48 / 39 66 / 43 / 36 61 / 40 / 33 51 / 34 / 28 44 / 29 / 24 38 / 25 / 21 33 / 22 / 18 26 / 17 / NA

20 < θ ≤ 27 72 / 63 / 56 72 / 57 / 51 72 / 52 / 47 72 / 48 / 43 69 / 41 / 36 59 / 35 / 31 51 / 30 / 27 45 / 26 / 23 35 / 21 / 18

27 < θ ≤ 45 72 / 72 / 63 72 / 72 / 57 72 / 66 / 52 67 / 60 / 48 57 / 51 / 40 49 / 44 / 35 42 / 38 / 30 37 / 33 / 26 29 / 26 / 21

45 < θ ≤ 90 72 72 72 72 72 62 54 47 37

θ < 7 71 / 52 / 36 64 / 47 / 33 59 / 43 / 30 53 / 39 / 28 45 / 33 / 23 39 / 28 / 20 34 / 24 / 17 29 / 21 / NA 23 / 17 / NA

7 < θ ≤ 20 60 / 39 / 32 54 / 35 / 29 49 / 32 / 27 45 / 29 / 24 38 / 25 / 21 33 / 21 / 18 28 / 19 / NA 25 / 16 / NA 19 / NA / NA

20 < θ ≤ 27 72 / 47 / 42 72 / 43 / 38 66 / 39 / 35 61 / 36 / 32 51 / 30 / 27 44 / 26 / 23 38 / 22 / 20 33 / 20 / 17 26 / NA / NA

27 < θ ≤ 45 66 / 59 / 47 60 / 53 / 42 54 / 49 / 39 50 / 45 / 35 42 / 38 / 30 36 / 32 / 26 31 / 28 / 22 27 / 25 / 20 21 / 19 / NA

45 < θ ≤ 90 72 72 70 64 54 47 40 35 28

θ < 7 61 / 44 / 31 55 / 40 / 28 50 / 36 / 26 46 / 33 / 24 39 / 28 / 20 33 / 24 / 17 29 / 21 / NA 25 / 18 / NA 20 / NA / NA

7 < θ ≤ 20 51 / 33 / 28 46 / 30 / 25 42 / 28 / 23 39 / 25 / 21 33 / 21 / 18 28 / 18 / NA 24 / 16 / NA 21 / NA / NA 17 / NA / NA

20 < θ ≤ 27 69 / 40 / 36 62 / 37 / 33 57 / 33 / 30 52 / 31 / 27 44 / 26 / 23 38 / 22 / 20 33 / 19 / 17 29 / 17 / NA 22 / NA / NA

27 < θ ≤ 45 56 / 51 / 40 51 / 46 / 36 47 / 42 / 33 43 / 38 / 30 36 / 32 / 26 31 / 28 / 22 27 / 24 / 19 24 / 21 / 17 21 / 19 / NA

45 < θ ≤ 90 72 66 60 55 47 40 35 30 24

θ < 7 72 / 70 / 49 72 / 63 / 45 72 / 57 / 41 72 / 53 / 37 61 / 44 / 31 52 / 38 / 27 45 / 33 / 23 39 / 29 / 20 31 / 23 / 16

7 < θ ≤ 20 72 / 52 / 43 72 / 48 / 39 66 / 43 / 36 61 / 40 / 33 51 / 34 / 28 44 / 29 / 24 38 / 25 / 21 33 / 22 / 18 26 / 17 / NA

20 < θ ≤ 27 72 / 63 / 56 72 / 57 / 51 72 / 52 / 47 72 / 48 / 43 69 / 41 / 36 59 / 35 / 31 51 / 30 / 27 45 / 26 / 23 35 / 21 / 18

27 < θ ≤ 45 72 / 72 / 63 72 / 72 / 57 72 / 66 / 52 67 / 60 / 48 57 / 51 / 40 49 / 44 / 35 42 / 38 / 30 37 / 33 / 26 29 / 26 / 21

45 < θ ≤ 90 72 72 72 72 72 62 54 47 37

θ < 7 71 / 52 / 36 64 / 47 / 33 59 / 43 / 30 53 / 39 / 28 45 / 33 / 23 39 / 28 / 20 34 / 24 / 17 29 / 21 / NA 23 / 17 / NA

7 < θ ≤ 20 60 / 39 / 32 54 / 35 / 29 49 / 32 / 27 45 / 29 / 24 38 / 25 / 21 33 / 21 / 18 28 / 19 / NA 25 / 16 / NA 19 / NA / NA

20 < θ ≤ 27 72 / 47 / 42 72 / 43 / 38 66 / 39 / 35 61 / 36 / 32 51 / 30 / 27 44 / 26 / 23 38 / 22 / 20 33 / 20 / 17 26 / NA / NA

27 < θ ≤ 45 66 / 59 / 47 60 / 53 / 42 54 / 49 / 39 50 / 45 / 35 42 / 38 / 30 36 / 32 / 26 31 / 28 / 22 27 / 25 / 20 21 / 19 / NA

45 < θ ≤ 90 72 72 70 64 54 47 40 35 28

θ < 7 61 / 44 / 31 55 / 40 / 28 50 / 36 / 26 46 / 33 / 24 39 / 28 / 20 33 / 24 / 17 29 / 21 / NA 25 / 18 / NA 20 / NA / NA

7 < θ ≤ 20 51 / 33 / 28 46 / 30 / 25 42 / 28 / 23 42 / 28 / 23 33 / 21 / 18 28 / 18 / NA 24 / 16 / NA 21 / NA / NA 17 / NA / NA

20 < θ ≤ 27 69 / 40 / 36 62 / 37 / 33 57 / 33 / 30 52 / 31 / 27 44 / 26 / 23 38 / 22 / 20 33 / 19 / 17 29 / 17 / NA 22 / NA / NA

27 < θ ≤ 45 56 / 51 / 40 51 / 46 / 36 47 / 42 / 33 43 / 38 / 30 36 / 32 / 26 31 / 28 / 22 27 / 24 / 19 24 / 21 / 17 18 / 17 / NA

45 < θ ≤ 90 72 66 60 55 47 40 35 30 24

θ < 7 72 / 70 / 49 72 / 63 / 45 72 / 57 / 41 72 / 53 / 37 61 / 44 / 31 52 / 38 / 27 45 / 33 / 23 39 / 29 / 20 31 / 23 / 16

7 < θ ≤ 20 72 / 52 / 43 72 / 48 / 39 66 / 43 / 36 61 / 40 / 33 51 / 34 / 28 44 / 29 / 24 38 / 25 / 21 33 / 22 / 18 26 / 17 / NA

20 < θ ≤ 27 72 / 63 / 56 72 / 57 / 51 72 / 52 / 47 72 / 48 / 43 69 / 41 / 36 59 / 35 / 31 51 / 30 / 27 45 / 26 / 23 35 / 21 / 18

27 < θ ≤ 45 72 / 72 / 63 72 / 72 / 57 72 / 66 / 52 67 / 60 / 48 57 / 51 / 40 49 / 44 / 35 42 / 38 / 30 37 / 33 / 26 29 / 26 / 21

45 < θ ≤ 90 72 72 72 72 72 62 54 47 37

θ < 7 71 / 52 / 36 64 / 47 / 33 59 / 43 / 30 53 / 39 / 28 45 / 33 / 23 39 / 28 / 20 34 / 24 / 17 29 / 21 / NA 23 / 17 / NA

7 < θ ≤ 20 60 / 39 / 32 54 / 35 / 29 49 / 32 / 27 45 / 29 / 24 38 / 25 / 21 33 / 21 / 18 28 / 19 / NA 25 / 16 / NA 19 / NA / NA

20 < θ ≤ 27 72 / 47 / 42 71 / 43 / 38 66 / 39 / 35 61 / 36 / 32 51 / 30 / 27 44 / 26 / 23 38 / 22 / 20 33 / 20 / 17 26 / NA / NA

27 < θ ≤ 45 66 / 59 / 47 60 / 53 / 42 54 / 49 / 39 50 / 45 / 35 42 / 38 / 30 36 / 32 / 26 31 / 28 / 22 27 / 25 / 20 21 / 19 / NA

45 < θ ≤ 90 72 72 70 64 54 47 40 35 28

θ < 7 61 / 44 / 31 55 / 40 / 28 50 / 36 / 26 46 / 33 / 24 39 / 28 / 20 33 / 24 / 17 29 / 21 / NA 25 / 18 / NA 20 / NA / NA

7 < θ ≤ 20 51 / 33 / 28 46 / 30 / 25 42 / 28 / 23 39 / 25 / 21 33 / 21 / 18 28 / 18 / NA 24 / 16 / NA 21 / NA / NA 17 / NA / NA

20 < θ ≤ 27 69 / 40 / 36 62 / 37 / 33 57 / 33 / 30 52 / 31 / 27 44 / 26 / 23 38 / 22 / 20 33 / 19 / 17 29 / 17 / NA 22 / NA / NA

27 < θ ≤ 45 56 / 51 / 40 51 / 46 / 36 47 / 42 / 33 43 / 38 / 30 36 / 32 / 26 31 / 28 / 22 27 / 24 / 19 24 / 21 / 17 18 / 17 / NA

45 < θ ≤ 90 72 66 60 55 47 40 35 30 24

θ < 7 59 / 59 / 49 59 / 59 / 45 59 / 57 / 41 59 / 53 / 37 59 / 44 / 31 52 / 38 / 27 45 / 33 / 23 39 / 29 / 20 31 / 23 / 16

7 < θ ≤ 20 62 / 52 / 43 62 / 48 / 39 62 / 43 / 36 61 / 40 / 33 51 / 34 / 28 44 / 29 / 24 38 / 25 / 21 33 / 22 / 18 26 / 17 / NA

20 < θ ≤ 27 66 / 63 / 56 66 / 57 / 51 65 / 52 / 47 63 / 48 / 43 61 / 41 / 36 58 / 35 / 31 51 / 30 / 27 45 / 26 / 23 35 / 21 / 18

27 < θ ≤ 45 61 / 61 / 61 61 / 61 / 57 61 / 61 / 52 61 / 60 / 48 57 / 51 / 40 49 / 44 / 35 42 / 38 / 30 37 / 33 / 26 29 / 26 / 21

45 < θ ≤ 90 70 70 70 70 70 62 54 47 37

θ < 7 59 / 52 / 36 59 / 47 / 33 59 / 43 / 30 53 / 39 / 28 45 / 33 / 23 39 / 28 / 20 34 / 24 / 17 29 / 21 / NA 23 / 17 / NA

7 < θ ≤ 20 60 / 39 / 32 54 / 35 / 29 49 / 32 / 27 45 / 29 / 24 38 / 25 / 21 33 / 21 / 18 28 / 19 / NA 25 / 16 / NA 19 / NA / NA

20 < θ ≤ 27 63 / 47 / 42 61 / 43 / 38 60 / 39 / 35 58 / 36 / 32 51 / 30 / 27 44 / 26 / 23 38 / 22 / 20 33 / 20 / 17 26 / NA / NA

27 < θ ≤ 45 61 / 59 / 47 60 / 53 / 42 54 / 49 / 39 50 / 45 / 35 42 / 38 / 30 36 / 32 / 26 31 / 28 / 22 27 / 25 / 20 21 / 19 / NA

45 < θ ≤ 90 70 70 70 64 54 47 40 35 28

θ < 7 59 / 44 / 31 55 / 40 / 28 50 / 36 / 26 46 / 33 / 24 39 / 28 / 20 33 / 24 / 17 29 / 21 / NA 25 / 18 / NA 20 / NA / NA

7 < θ ≤ 20 51 / 33 / 28 46 / 30 / 25 42 / 28 / 23 39 / 25 / 21 33 / 21 / 18 28 / 18 / NA 24 / 16 / NA 21 / NA / NA 17 / NA / NA

20 < θ ≤ 27 60 / 40 / 36 59 / 37 / 33 57 / 33 / 30 52 / 31 / 27 44 / 26 / 23 38 / 22 / 20 33 / 19 / 17 29 / 17 / NA 22 / NA / NA

27 < θ ≤ 45 56 / 51 / 40 51 / 46 / 36 47 / 42 / 33 43 / 38 / 30 36 / 32 / 26 31 / 28 / 22 27 / 24 / 19 24 / 21 / 17 18 / 17 / NA

45 < θ ≤ 90 70 66 60 55 47 40 35 30 24

Snow

Load

Exposure

Category

Roof Pitch

(Degrees)

Wind Speed (MPH)

30 PSF

B

C

D

35 PSF

B

C

D

40 PSF

B

C

D

50 PSF

B

C

D

9 of 20



105 110 115 120 130 140 150 160 180

θ < 7 50 / 50 / 49 50 / 50 / 45 50 / 50 / 41 50 / 50 / 37 50 / 44 / 31 50 / 38 / 27 45 / 33 / 23 39 / 29 / 20 31 / 23 / 16

7 < θ ≤ 20 53 / 52 / 43 53 / 48 / 39 53 / 43 / 36 53 / 40 / 33 51 / 34 / 28 44 / 29 / 24 38 / 25 / 21 33 / 22 / 18 26 / 17 / NA

20 < θ ≤ 27 55 / 55 / 55 55 / 55 / 51 55 / 52 / 47 55 / 48 / 43 54 / 41 / 36 51 / 35 / 31 49 / 30 / 27 45 / 26 / 23 35 / 21 / 18

27 < θ ≤ 45 51 / 51 / 51 51 / 51 / 51 51 / 51 / 51 51 / 51 / 48 51 / 51 / 40 49 / 44 / 35 42 / 38 / 30 37 / 33 / 26 29 / 26 / 21

45 < θ ≤ 90 61 61 61 61 61 61 54 47 37

θ < 7 50 / 50 / 36 50 / 47 / 33 50 / 43 / 30 50 / 39 / 28 45 / 33 / 23 39 / 28 / 20 34 / 24 / 17 29 / 21 / NA 23 / 17 / NA

7 < θ ≤ 20 53 / 39 / 32 53 / 35 / 29 49 / 32 / 27 45 / 29 / 24 38 / 25 / 21 33 / 21 / 18 28 / 19 / NA 25 / 16 / NA 19 / NA / NA

20 < θ ≤ 27 55 / 47 / 42 54 / 43 / 38 53 / 39 / 35 52 / 36 / 32 49 / 30 / 27 44 / 26 / 23 38 / 22 / 20 33 / 20 / 17 26 / NA / NA

27 < θ ≤ 45 51 / 51 / 47 51 / 51 / 42 51 / 49 / 39 50 / 45 / 35 42 / 38 / 30 36 / 32 / 26 31 / 28 / 22 27 / 25 / 20 21 / 19 / NA

45 < θ ≤ 90 61 61 61 61 54 47 40 35 28

θ < 7 50 / 44 / 31 50 / 40 / 28 50 / 36 / 26 46 / 33 / 24 39 / 28 / 20 33 / 24 / 17 29 / 21 / NA 25 / 18 / NA 20 / NA / NA

7 < θ ≤ 20 51 / 33 / 28 46 / 30 / 25 42 / 28 / 23 39 / 25 / 21 33 / 21 / 18 28 / 18 / NA 24 / 16 / NA 21 / NA / NA 17 / NA / NA

20 < θ ≤ 27 54 / 40 / 36 52 / 37 / 33 51 / 33 / 30 50 / 31 / 27 44 / 26 / 23 38 / 22 / 20 33 / 19 / 17 29 / 17 / NA 22 / NA / NA

27 < θ ≤ 45 51 / 51 / 40 51 / 46 / 36 47 / 42 / 33 43 / 38 / 30 36 / 32 / 26 31 / 28 / 22 27 / 24 / 19 24 / 21 / 17 18 / 17 / NA

45 < θ ≤ 90 61 61 60 55 47 40 35 30 24

θ < 7 43 / 43 / 43 43 / 43 / 43 43 / 43 / 41 43 / 43 / 37 43 / 43 / 31 43 / 38 / 27 43 / 33 / 23 39 / 29 / 20 31 / 23 / 16

7 < θ ≤ 20 46 / 46 / 43 46 / 46 / 39 46 / 43 / 36 46 / 40 / 33 46 / 34 / 28 44 / 29 / 24 38 / 25 / 21 33 / 22 / 18 26 / 17 / NA

20 < θ ≤ 27 48 / 48 / 48 48 / 48 / 48 48 / 48 / 47 48 / 48 / 43 48 / 41 / 36 46 / 35 / 31 45 / 30 / 27 43 / 26 / 23 35 / 21 / 18

27 < θ ≤ 45 44 / 44 / 44 44 / 44 / 44 44 / 44 / 44 44 / 44 / 44 44 / 44 / 40 44 / 44 / 35 42 / 38 / 30 37 / 33 / 26 29 / 26 / 21

45 < θ ≤ 90 53 53 53 53 53 53 53 47 37

θ < 7 43 / 43 / 36 43 / 43 / 33 43 / 43 / 30 43 / 39 / 28 43 / 33 / 23 39 / 28 / 20 34 / 24 / 17 29 / 21 / NA 23 / 17 / NA

7 < θ ≤ 20 46 / 39 / 32 46 / 35 / 29 46 / 32 / 27 45 / 29 / 24 38 / 25 / 21 33 / 21 / 18 28 / 19 / NA 25 / 16 / NA 19 / NA / NA

20 < θ ≤ 27 48 / 47 / 42 48 / 43 / 38 48 / 39 / 35 47 / 36 / 32 45 / 30 / 27 43 / 26 / 23 38 / 22 / 20 33 / 20 / 17 26 / NA / NA

27 < θ ≤ 45 44 / 44 / 44 44 / 44 / 42 44 / 44 / 39 44 / 44 / 35 42 / 38 / 30 36 / 32 / 26 31 / 28 / 22 27 / 25 / 20 21 / 19 / NA

45 < θ ≤ 90 53 53 53 53 53 47 40 35 28

θ < 7 43 / 43 / 31 43 / 40 / 28 43 / 36 / 26 43 / 33 / 24 39 / 28 / 20 33 / 24 / 17 29 / 21 / NA 25 / 18 / NA 20 / NA / NA

7 < θ ≤ 20 46 / 33 / 28 46 / 30 / 25 42 / 28 / 23 39 / 25 / 21 33 / 21 / 18 28 / 18 / NA 24 / 16 / NA 21 / NA / NA 17 / NA / NA

20 < θ ≤ 27 48 / 40 / 36 47 / 37 / 33 46 / 33 / 30 45 / 31 / 27 43 / 26 / 23 38 / 22 / 20 33 / 19 / 17 29 / 17 / NA 22 / NA / NA

27 < θ ≤ 45 44 / 44 / 40 44 / 44 / 36 44 / 42 / 33 43 / 38 / 30 36 / 32 / 26 31 / 28 / 22 27 / 24 / 19 24 / 21 / 17 18 / 17 / NA

45 < θ ≤ 90 53 53 53 53 47 40 35 30 24

θ < 7 38 / 38 / 38 38 / 38 / 38 38 / 38 / 38 38 / 38 / 37 38 / 38 / 31 38 / 38 / 27 38 / 33 / 23 38 / 29 / 20 31 / 23 / 16

7 < θ ≤ 20 40 / 40 / 40 40 / 40 / 39 40 / 40 / 36 40 / 40 / 33 40 / 34 / 28 40 / 29 / 24 38 / 25 / 21 33 / 22 / 18 26 / 17 / NA

20 < θ ≤ 27 42 / 42 / 42 42 / 42 / 42 42 / 42 / 42 42 / 42 / 42 42 / 41 / 36 42 / 35 / 31 41 / 30 / 27 39 / 26 / 23 35 / 21 / 18

27 < θ ≤ 45 39 / 39 / 39 39 / 39 / 39 39 / 39 / 39 39 / 39 / 39 39 / 39 / 39 39 / 39 / 35 39 / 38 / 30 37 / 33 / 26 29 / 26 / 21

45 < θ ≤ 90 47 47 47 47 47 47 47 47 37

θ < 7 38 / 38 / 36 38 / 38 / 33 38 / 38 / 30 38 / 38 / 28 38 / 33 / 23 38 / 28 / 20 34 / 24 / 17 29 / 21 / NA 23 / 17 / NA

7 < θ ≤ 20 40 / 39 / 32 40 / 35 / 29 40 / 32 / 27 40 / 29 / 24 38 / 25 / 21 33 / 21 / 18 28 / 19 / NA 25 / 16 / NA 19 / NA / NA

20 < θ ≤ 27 42 / 42 / 42 42 / 42 / 38 42 / 39 / 35 42 / 36 / 32 41 / 30 / 27 39 / 26 / 23 37 / 22 / 20 33 / 20 / 17 26 / NA / NA

27 < θ ≤ 45 39 / 39 / 39 39 / 39 / 39 39 / 39 / 39 39 / 39 / 35 39 / 38 / 30 36 / 32 / 26 31 / 28 / 22 27 / 25 / 20 21 / 19 / NA

45 < θ ≤ 90 47 47 47 47 47 47 40 35 28

θ < 7 38 / 38 / 31 38 / 38 / 28 38 / 36 / 26 38 / 33 / 24 38 / 28 / 20 33 / 24 / 17 29 / 21 / NA 25 / 18 / NA 20 / NA / NA

7 < θ ≤ 20 40 / 33 / 28 40 / 30 / 25 40 / 28 / 23 39 / 25 / 21 33 / 21 / 18 28 / 18 / NA 24 / 16 / NA 21 / NA / NA 17 / NA / NA

20 < θ ≤ 27 42 / 40 / 36 42 / 37 / 33 42 / 33 / 30 41 / 31 / 27 39 / 26 / 23 37 / 22 / 20 33 / 19 / 17 29 / 17 / NA 22 / NA / NA

27 < θ ≤ 45 39 / 39 / 39 39 / 39 / 36 39 / 39 / 33 39 / 38 / 30 36 / 32 / 26 31 / 28 / 22 27 / 24 / 19 24 / 21 / 17 18 / 17 / NA

45 < θ ≤ 90 47 47 47 47 47 40 35 30 24

θ < 7 34 / 34 / 34 34 / 34 / 34 34 / 34 / 34 34 / 34 / 34 34 / 34 / 31 34 / 34 / 27 34 / 33 / 23 34 / 29 / 20 31 / 23 / 16

7 < θ ≤ 20 36 / 36 / 36 36 / 36 / 36 36 / 36 / 36 36 / 36 / 33 36 / 34 / 28 36 / 29 / 24 36 / 25 / 21 33 / 22 / 18 26 / 17 / NA

20 < θ ≤ 27 38 / 38 / 38 38 / 38 / 38 38 / 38 / 38 38 / 38 / 38 38 / 38 / 36 38 / 35 / 31 37 / 30 / 27 36 / 26 / 23 34 / 21 / 18

27 < θ ≤ 45 35 / 35 / 35 35 / 35 / 35 35 / 35 / 35 35 / 35 / 35 35 / 35 / 35 35 / 35 / 35 35 / 35 / 30 35 / 33 / 26 29 / 26 / 21

45 < θ ≤ 90 43 43 43 43 43 43 43 43 37

θ < 7 34 / 34 / 34 34 / 34 / 33 34 / 34 / 30 34 / 34 / 28 34 / 33 / 23 34 / 28 / 20 34 / 24 / 17 29 / 21 / NA 23 / 17 / NA

7 < θ ≤ 20 36 / 36 / 32 36 / 35 / 29 36 / 32 / 27 36 / 29 / 24 36 / 25 / 21 33 / 21 / 18 28 / 19 / NA 25 / 16 / NA 19 / NA / NA

20 < θ ≤ 27 38 / 38 / 38 38 / 38 / 38 38 / 38 / 35 38 / 36 / 32 38 / 30 / 27 36 / 26 / 23 35 / 22 / 20 33 / 20 / 17 26 / NA / NA

27 < θ ≤ 45 35 / 35 / 35 35 / 35 / 35 35 / 35 / 35 35 / 35 / 35 35 / 35 / 30 35 / 32 / 26 31 / 28 / 22 27 / 25 / 20 21 / 19 / NA

45 < θ ≤ 90 43 43 43 43 43 43 40 35 28

θ < 7 34 / 34 / 31 34 / 34 / 28 34 / 34 / 26 34 / 33 / 24 34 / 28 / 20 33 / 24 / 17 29 / 21 / NA 25 / 18 / NA 20 / NA / NA

7 < θ ≤ 20 36 / 33 / 28 36 / 30 / 25 36 / 28 / 23 36 / 25 / 21 33 / 21 / 18 28 / 18 / NA 24 / 16 / NA 21 / NA / NA 17 / NA / NA

20 < θ ≤ 27 38 / 38 / 36 38 / 37 / 33 38 / 33 / 30 38 / 31 / 27 36 / 26 / 23 35 / 22 / 20 33 / 19 / 17 29 / 17 / NA 22 / NA / NA

27 < θ ≤ 45 35 / 35 / 35 35 / 35 / 35 35 / 35 / 33 35 / 35 / 30 35 / 32 / 26 31 / 28 / 22 27 / 24 / 19 24 / 21 / 17 18 / 17 / NA

45 < θ ≤ 90 43 43 43 43 43 40 35 30 24

Snow

Load

Exposure

Category

Roof Pitch

(Degrees)

Wind Speed (MPH)

60 PSF

B

C

D

90 PSF

B

C

D

70 PSF

B

C

D

80 PSF

B

C

D

10 of 20


[Portrait] [0-30 ft]

105 110 115 120 130 140 150 160 180

θ < 7 48 / 48 / 36 48 / 46 / 32 48 / 42 / 30 48 / 38 / 27 45 / 32 / 23 38 / 28 / 20 33 / 24 / 17 29 / 21 / NA 22 / 16 / NA

7 < θ ≤ 20 48 / 38 / 32 48 / 35 / 29 48 / 32 / 26 44 / 29 / 24 37 / 24 / 20 32 / 21 / 17 28 / 18 / NA 24 / 16 / NA 19 / NA / NA

20 < θ ≤ 27 48 / 46 / 41 48 / 42 / 37 48 / 38 / 34 48 / 35 / 31 48 / 29 / 26 43 / 25 / 22 37 / 22 / 19 33 / 19 / 17 25 / NA / NA

27 < θ ≤ 45 48 / 48 / 46 48 / 48 / 42 48 / 48 / 38 48 / 44 / 35 41 / 37 / 29 35 / 32 / 25 31 / 27 / 22 27 / 24 / 19 21 / 19 / NA

45 < θ ≤ 90 48 48 48 48 48 45 39 34 27

θ < 7 48 / 36 / 25 45 / 32 / 23 40 / 29 / 21 37 / 27 / 19 31 / 23 / 16 27 / 19 / NA 23 / 17 / NA 20 / NA / NA 16 / NA / NA

7 < θ ≤ 20 41 / 27 / 22 37 / 24 / 20 34 / 22 / 18 31 / 20 / 17 26 / 17 / NA 22 / NA / NA 19 / NA / NA 17 / NA / NA NA / NA / NA

20 < θ ≤ 27 48 / 32 / 29 48 / 29 / 26 46 / 27 / 24 42 / 24 / 22 35 / 21 / 18 30 / 18 / 16 26 / NA / NA 23 / NA / NA 18 / NA / NA

27 < θ ≤ 45 45 / 41 / 32 41 / 37 / 29 38 / 34 / 27 34 / 31 / 24 29 / 26 / 21 25 / 22 / 18 22 / 19 / NA 19 / 17 / NA NA / NA / NA

45 < θ ≤ 90 48 48 48 44 37 32 28 24 19

θ < 7 41 / 30 / 25 37 / 30 / 23 34 / 25 / 17 31 / 22 / 16 26 / 19 / NA 22 / 16 / NA 19 / NA / NA 17 / NA / NA NA / NA / NA

7 < θ ≤ 20 34 / 22 / 19 31 / 20 / 17 28 / 19 / NA 26 / 17 / NA 22 / NA / NA 19 / NA / NA 16 / NA / NA NA / NA / NA NA / NA / NA


27 < θ ≤ 45 38 / 34 / 27 35 / 31 / 24 31 / 28 / 22 29 / 26 / 20 24 / 22 / 17 21 / 19 / NA 18 / 16 / NA 16 / NA / NA NA / NA / NA

45 < θ ≤ 90 48 44 40 37 31 27 23 20 16

θ < 7 48 / 48 / 36 48 / 46 / 32 48 / 42 / 30 48 / 38 / 27 45 / 32 / 23 38 / 28 / 20 33 / 24 / 17 29 / 21 / NA 22 / 16 / NA

7 < θ ≤ 20 48 / 38 / 32 48 / 35 / 29 48 / 32 / 26 44 / 29 / 24 37 / 24 / 20 32 / 21 / 17 28 / 18 / NA 24 / 16 / NA 19 / NA / NA

20 < θ ≤ 27 48 / 46 / 41 48 / 42 / 37 48 / 38 / 34 48 / 35 / 31 48 / 29 / 26 43 / 25 / 22 37 / 22 / 19 33 / 19 / 17 25 / NA / NA

27 < θ ≤ 45 48 / 48 / 46 48 / 48 / 42 48 / 48 / 38 48 / 44 / 35 41 / 37 / 29 35 / 32 / 25 31 / 27 / 22 27 / 24 / 19 21 / 19 / NA

45 < θ ≤ 90 48 48 48 48 48 45 39 34 27

θ < 7 48 / 36 / 25 45 / 32 / 23 40 / 29 / 21 37 / 27 / 19 31 / 23 / 16 27 / 19 / NA 23 / 17 / NA 20 / NA / NA 16 / NA / NA


20 < θ ≤ 27 48 / 32 / 29 48 / 29 / 26 46 / 27 / 24 42 / 24 / 22 35 / 21 / 18 30 / 18 / 16 26 / NA / NA 23 / NA / NA 18 / NA / NA

27 < θ ≤ 45 45 / 41 / 32 41 / 37 / 29 38 / 34 / 27 34 / 31 / 24 29 / 26 / 21 25 / 22 / 18 22 / 19 / NA 19 / 17 / NA NA / NA / NA

45 < θ ≤ 90 48 48 48 44 37 32 28 24 19





45 < θ ≤ 90 48 44 40 37 31 27 23 20 16

θ < 7 48 / 48 / 36 48 / 46 / 32 48 / 42 / 30 48 / 38 / 27 45 / 32 / 23 38 / 28 / 20 33 / 24 / 17 29 / 21 / NA 22 / 16 / NA

7 < θ ≤ 20 48 / 38 / 32 48 / 35 / 29 48 / 32 / 26 44 / 29 / 24 37 / 24 / 20 32 / 21 / 17 28 / 18 / NA 24 / 16 / NA 19 / NA / NA

20 < θ ≤ 27 48 / 46 / 41 48 / 42 / 37 48 / 38 / 34 48 / 35 / 31 48 / 29 / 26 43 / 25 / 22 37 / 22 / 19 33 / 19 / 17 25 / NA / NA

27 < θ ≤ 45 48 / 48 / 46 48 / 48 / 42 48 / 48 / 38 48 / 44 / 35 41 / 37 / 29 35 / 32 / 25 31 / 27 / 22 27 / 24 / 19 21 / 19 / NA

45 < θ ≤ 90 48 48 48 48 48 45 39 34 27

θ < 7 48 / 36 / 25 45 / 32 / 23 40 / 29 / 21 37 / 27 / 19 31 / 23 / 16 27 / 19 / NA 23 / 17 / NA 20 / NA / NA 16 / NA / NA


20 < θ ≤ 27 48 / 32 / 29 48 / 29 / 26 46 / 27 / 24 42 / 24 / 22 35 / 21 / 18 30 / 18 / 16 26 / NA / NA 23 / NA / NA 18 / NA / NA

27 < θ ≤ 45 45 / 41 / 32 41 / 37 / 29 38 / 34 / 27 34 / 31 / 24 29 / 26 / 21 25 / 22 / 18 22 / 19 / NA 19 / 17 / NA NA / NA / NA

45 < θ ≤ 90 48 48 48 44 37 32 28 24 19





45 < θ ≤ 90 48 44 40 37 31 27 23 20 16

θ < 7 48 / 48 / 36 48 / 46 / 32 48 / 42 / 30 48 / 38 / 27 45 / 32 / 23 38 / 28 / 20 33 / 24 / 17 29 / 21 / NA 22 / 16 / NA

7 < θ ≤ 20 48 / 38 / 32 48 / 35 / 29 48 / 32 / 26 44 / 29 / 24 37 / 24 / 20 32 / 21 / 17 28 / 18 / NA 24 / 16 / NA 19 / NA / NA

20 < θ ≤ 27 48 / 46 / 41 48 / 42 / 37 48 / 38 / 34 48 / 35 / 31 48 / 29 / 26 43 / 25 / 22 37 / 22 / 19 33 / 19 / 17 25 / NA / NA

27 < θ ≤ 45 48 / 48 / 46 48 / 48 / 42 48 / 48 / 38 48 / 44 / 35 41 / 37 / 29 35 / 32 / 25 31 / 27 / 22 27 / 24 / 19 21 / 19 / NA

45 < θ ≤ 90 48 48 48 48 48 45 39 34 27

θ < 7 48 / 36 / 25 45 / 32 / 23 40 / 29 / 21 37 / 27 / 19 31 / 23 / 16 27 / 19 / NA 23 / 17 / NA 20 / NA / NA 16 / NA / NA


20 < θ ≤ 27 48 / 32 / 29 48 / 29 / 26 46 / 27 / 24 42 / 24 / 22 35 / 21 / 18 30 / 18 / 16 26 / NA / NA 23 / NA / NA 18 / NA / NA

27 < θ ≤ 45 45 / 41 / 32 41 / 37 / 29 38 / 34 / 27 34 / 31 / 24 29 / 26 / 21 25 / 22 / 18 22 / 19 / NA 19 / 17 / NA NA / NA / NA

45 < θ ≤ 90 48 48 48 44 37 32 28 24 19





45 < θ ≤ 90 48 44 40 37 31 27 23 20 16

Snow

Load

Exposure

Category

Roof Pitch

(Degrees)

Wind Speed (MPH)

0 PSF

B

C

D

10 PSF

B

C

D

20 PSF

B

C

D

25 PSF

B

C

D

11 of 20



105 110 115 120 130 140 150 160 180

θ < 7 48 / 48 / 36 48 / 46 / 32 48 / 42 / 30 48 / 38 / 27 45 / 32 / 23 38 / 28 / 20 33 / 24 / 17 29 / 21 / NA 22 / 16 / NA

7 < θ ≤ 20 48 / 38 / 32 48 / 35 / 29 48 / 32 / 26 44 / 29 / 24 37 / 24 / 20 32 / 21 / 17 28 / 18 / NA 24 / 16 / NA 19 / NA / NA

20 < θ ≤ 27 48 / 46 / 41 48 / 42 / 37 48 / 38 / 34 48 / 35 / 31 48 / 29 / 26 43 / 25 / 22 37 / 22 / 19 33 / 19 / 17 25 / NA / NA

27 < θ ≤ 45 48 / 48 / 46 48 / 48 / 42 48 / 48 / 38 48 / 44 / 35 41 / 37 / 29 35 / 32 / 25 31 / 27 / 22 27 / 24 / 19 21 / 19 / NA

45 < θ ≤ 90 48 48 48 48 48 45 39 34 27

θ < 7 48 / 36 / 25 45 / 32 / 23 40 / 29 / 21 37 / 27 / 19 31 / 23 / 16 27 / 19 / NA 23 / 17 / NA 20 / NA / NA 16 / NA / NA


20 < θ ≤ 27 48 / 32 / 29 48 / 29 / 26 46 / 27 / 24 42 / 24 / 22 35 / 21 / 18 30 / 18 / 16 26 / NA / NA 23 / NA / NA 18 / NA / NA

27 < θ ≤ 45 45 / 41 / 32 41 / 37 / 29 38 / 34 / 27 34 / 31 / 24 29 / 26 / 21 25 / 22 / 18 22 / 19 / NA 19 / 17 / NA NA / NA / NA

45 < θ ≤ 90 48 48 48 44 37 32 28 24 19





45 < θ ≤ 90 48 44 40 37 31 27 23 20 16

θ < 7 48 / 48 / 36 48 / 46 / 32 48 / 42 / 30 48 / 38 / 27 45 / 32 / 23 38 / 28 / 20 33 / 24 / 17 29 / 21 / NA 22 / 16 / NA

7 < θ ≤ 20 48 / 38 / 32 48 / 35 / 29 48 / 32 / 26 44 / 29 / 24 37 / 24 / 20 32 / 21 / 17 28 / 18 / NA 24 / 16 / NA 19 / NA / NA

20 < θ ≤ 27 48 / 46 / 41 48 / 42 / 37 48 / 38 / 34 48 / 35 / 31 48 / 29 / 26 43 / 25 / 22 37 / 22 / 19 33 / 19 / 17 25 / NA / NA

27 < θ ≤ 45 48 / 48 / 46 48 / 48 / 42 48 / 48 / 38 48 / 44 / 35 41 / 37 / 29 35 / 32 / 25 31 / 27 / 22 27 / 24 / 19 21 / 19 / NA

45 < θ ≤ 90 48 48 48 48 48 45 39 34 27

θ < 7 48 / 36 / 25 45 / 32 / 23 40 / 29 / 21 37 / 27 / 19 31 / 23 / 16 27 / 19 / NA 23 / 17 / NA 20 / NA / NA 16 / NA / NA

7 < θ ≤ 20 48 / 36 / 25 45 / 32 / 23 40 / 29 / 21 37 / 27 / 19 31 / 23 / 16 27 / 19 / NA 23 / 17 / NA 20 / NA / NA 16 / NA / NA

20 < θ ≤ 27 48 / 32 / 29 48 / 29 / 26 46 / 27 / 24 42 / 24 / 22 35 / 21 / 18 30 / 18 / 16 26 / NA / NA 23 / NA / NA 18 / NA / NA

27 < θ ≤ 45 45 / 41 / 32 41 / 37 / 29 38 / 34 / 27 34 / 31 / 24 29 / 26 / 21 25 / 22 / 18 22 / 19 / NA 19 / 17 / NA NA / NA / NA

45 < θ ≤ 90 48 48 48 44 37 32 28 24 19





45 < θ ≤ 90 48 44 40 37 31 27 23 20 16

θ < 7 43 / 43 / 36 43 / 43 / 32 43 / 42 / 30 43 / 38 / 27 43 / 32 / 23 38 / 28 / 20 33 / 24 / 17 29 / 21 / NA 22 / 16 / NA

7 < θ ≤ 20 46 / 38 / 32 46 / 35 / 29 46 / 32 / 26 44 / 29 / 24 37 / 24 / 20 32 / 21 / 17 28 / 18 / NA 24 / 16 / NA 19 / NA / NA

20 < θ ≤ 27 48 / 46 / 41 48 / 42 / 37 47 / 38 / 34 46 / 35 / 31 44 / 29 / 26 42 / 25 / 22 37 / 22 / 19 33 / 19 / 17 25 / NA / NA

27 < θ ≤ 45 44 / 44 / 44 44 / 44 / 42 44 / 44 / 38 44 / 44 / 35 41 / 37 / 29 35 / 32 / 25 31 / 27 / 22 27 / 24 / 19 21 / 19 / NA

45 < θ ≤ 90 48 48 48 48 48 45 39 34 27

θ < 7 43 / 36 / 25 43 / 32 / 23 40 / 29 / 21 37 / 27 / 19 31 / 23 / 16 27 / 19 / NA 23 / 17 / NA 20 / NA / NA 16 / NA / NA


20 < θ ≤ 27 45 / 32 / 29 44 / 29 / 26 43 / 27 / 24 42 / 24 / 22 35 / 21 / 18 30 / 18 / 16 26 / NA / NA 23 / NA / NA 18 / NA / NA

27 < θ ≤ 45 44 / 41 / 32 41 / 37 / 29 38 / 34 / 27 34 / 31 / 24 29 / 26 / 21 25 / 22 / 18 22 / 19 / NA 19 / 17 / NA NA / NA / NA

45 < θ ≤ 90 48 48 48 44 37 32 28 24 19





45 < θ ≤ 90 48 44 40 37 31 27 23 20 16

θ < 7 35 / 35 / 35 35 / 35 / 32 35 / 35 / 30 35 / 35 / 27 35 / 32 / 23 35 / 28 / 20 33 / 24 / 17 29 / 21 / NA 22 / 16 / NA

7 < θ ≤ 20 37 / 37 / 32 37 / 35 / 29 37 / 32 / 26 37 / 29 / 24 37 / 24 / 20 32 / 21 / 17 28 / 18 / NA 24 / 16 / NA 19 / NA / NA

20 < θ ≤ 27 39 / 39 / 39 39 / 39 / 37 39 / 38 / 34 39 / 35 / 31 38 / 29 / 26 36 / 25 / 22 35 / 22 / 19 33 / 19 / 17 25 / NA / NA

27 < θ ≤ 45 36 / 36 / 36 36 / 36 / 36 36 / 36 / 36 36 / 36 / 35 36 / 36 / 29 35 / 32 / 25 31 / 27 / 22 27 / 24 / 19 21 / 19 / NA

45 < θ ≤ 90 42 42 42 42 42 42 39 34 27

θ < 7 35 / 35 / 25 35 / 32 / 23 35 / 29 / 21 35 / 27 / 19 31 / 23 / 16 27 / 19 / NA 23 / 17 / NA 20 / NA / NA 16 / NA / NA


20 < θ ≤ 27 39 / 32 / 29 38 / 29 / 26 37 / 27 / 24 36 / 24 / 22 34 / 21 / 18 30 / 18 / 16 26 / NA / NA 23 / NA / NA 18 / NA / NA

27 < θ ≤ 45 36 / 36 / 32 36 / 36 / 29 36 / 34 / 27 34 / 31 / 24 29 / 26 / 21 25 / 22 / 18 22 / 19 / NA 19 / 17 / NA NA / NA / NA

45 < θ ≤ 90 42 42 42 42 37 32 28 24 19





45 < θ ≤ 90 42 42 40 37 31 27 23 20 16

Snow

Load

Exposure

Category

Roof Pitch

(Degrees)

Wind Speed (MPH)

30 PSF

B

C

D

35 PSF

B

C

D

40 PSF

B

C

D

50 PSF

B

C

D

12 of 20



105 110 115 120 130 140 150 160 180

θ < 7 30 / 30 / 30 30 / 30 / 30 30 / 30 / 30 30 / 30 / 27 30 / 30 / 23 30 / 28 / 20 30 / 24 / 17 29 / 21 / NA 22 / 16 / NA

7 < θ ≤ 20 31 / 31 / 31 31 / 31 / 29 31 / 31 / 26 31 / 29 / 24 31 / 24 / 20 31 / 21 / 17 28 / 18 / NA 24 / 16 / NA 19 / NA / NA

20 < θ ≤ 27 33 / 33 / 33 33 / 33 / 33 33 / 33 / 33 33 / 33 / 31 33 / 29 / 26 32 / 25 / 22 31 / 22 / 19 30 / 19 / 17 25 / NA / NA

27 < θ ≤ 45 30 / 30 / 30 30 / 30 / 30 30 / 30 / 30 30 / 30 / 30 30 / 30 / 29 30 / 30 / 25 30 / 27 / 22 27 / 24 / 19 21 / 19 / NA

45 < θ ≤ 90 36 36 36 36 36 36 36 34 27

θ < 7 30 / 30 / 25 30 / 30 / 23 30 / 29 / 21 30 / 27 / 19 30 / 23 / 16 27 / 19 / NA 23 / 17 / NA 20 / NA / NA 16 / NA / NA


20 < θ ≤ 27 33 / 32 / 29 33 / 29 / 26 33 / 27 / 24 32 / 24 / 22 31 / 21 / 18 29 / 18 / 16 26 / NA / NA 23 / NA / NA 18 / NA / NA

27 < θ ≤ 45 30 / 30 / 30 30 / 30 / 29 30 / 30 / 27 30 / 30 / 24 29 / 26 / 21 25 / 22 / 18 22 / 19 / NA 19 / 17 / NA NA / NA / NA

45 < θ ≤ 90 36 36 36 36 36 32 28 24 19





45 < θ ≤ 90 36 36 36 36 31 27 23 20 16

θ < 7 26 / 26 / 26 26 / 26 / 26 26 / 26 / 26 26 / 26 / 26 26 / 26 / 23 26 / 26 / 20 26 / 24 / 17 26 / 21 / NA 22 / 16 / NA

7 < θ ≤ 20 27 / 27 / 27 27 / 27 / 27 27 / 27 / 26 27 / 27 / 24 27 / 24 / 20 27 / 21 / 17 27 / 18 / NA 24 / 16 / NA 19 / NA / NA

20 < θ ≤ 27 28 / 28 / 28 28 / 28 / 28 28 / 28 / 28 28 / 28 / 28 28 / 28 / 26 28 / 25 / 22 28 / 22 / 19 27 / 19 / 17 25 / NA / NA

27 < θ ≤ 45 26 / 26 / 26 26 / 26 / 26 26 / 26 / 26 26 / 26 / 26 26 / 26 / 26 26 / 26 / 25 26 / 26 / 22 26 / 24 / 19 21 / 19 / NA

45 < θ ≤ 90 32 32 32 32 32 32 32 32 27

θ < 7 26 / 26 / 25 26 / 26 / 23 26 / 26 / 21 26 / 26 / 19 26 / 23 / 16 26 / 19 / NA 23 / 17 / NA 20 / NA / NA 16 / NA / NA


20 < θ ≤ 27 28 / 28 / 28 28 / 28 / 26 28 / 27 / 24 28 / 24 / 22 28 / 21 / 18 26 / 18 / 16 25 / NA / NA 23 / NA / NA 18 / NA / NA

27 < θ ≤ 45 26 / 26 / 26 26 / 26 / 26 26 / 26 / 26 26 / 26 / 24 26 / 26 / 21 25 / 22 / 18 22 / 19 / NA 19 / 17 / NA NA / NA / NA

45 < θ ≤ 90 32 32 32 32 32 32 28 24 19





45 < θ ≤ 90 32 32 32 32 31 27 23 20 16

θ < 7 23 / 23 / 23 23 / 23 / 23 23 / 23 / 23 23 / 23 / 23 23 / 23 / 23 23 / 23 / 20 23 / 23 / 17 23 / 21 / NA 22 / 16 / NA

7 < θ ≤ 20 24 / 24 / 24 24 / 24 / 24 24 / 24 / 24 24 / 24 / 24 24 / 24 / 20 24 / 21 / 17 24 / 18 / NA 24 / 16 / NA 19 / NA / NA

20 < θ ≤ 27 25 / 25 / 25 25 / 25 / 25 25 / 25 / 25 25 / 25 / 25 25 / 25 / 25 25 / 25 / 22 25 / 22 / 19 25 / 19 / 17 23 / NA / NA

27 < θ ≤ 45 23 / 23 / 23 23 / 23 / 23 23 / 23 / 23 23 / 23 / 23 23 / 23 / 23 23 / 23 / 23 23 / 23 / 22 23 / 23 / 19 21 / 19 / NA

45 < θ ≤ 90 28 28 28 28 28 28 28 28 27

θ < 7 23 / 23 / 23 23 / 23 / 23 23 / 23 / 21 23 / 23 / 19 23 / 23 / 16 23 / 19 / NA 23 / 17 / NA 20 / NA / NA 16 / NA / NA


20 < θ ≤ 27 25 / 25 / 25 25 / 25 / 25 25 / 25 / 24 25 / 24 / 22 25 / 21 / 18 24 / 18 / 16 23 / NA / NA 22 / NA / NA 18 / NA / NA

27 < θ ≤ 45 23 / 23 / 23 23 / 23 / 23 23 / 23 / 23 23 / 23 / 23 23 / 23 / 21 23 / 22 / 18 22 / 19 / NA 19 / 17 / NA NA / NA / NA

45 < θ ≤ 90 28 28 28 28 28 28 28 24 19





45 < θ ≤ 90 28 28 28 28 28 27 23 20 16

θ < 7 20 / 20 / 20 20 / 20 / 20 20 / 20 / 20 20 / 20 / 20 20 / 20 / 20 20 / 20 / 20 20 / 20 / 17 20 / 20 / NA 20 / 16 / NA

7 < θ ≤ 20 21 / 21 / 21 21 / 21 / 21 21 / 21 / 21 21 / 21 / 21 21 / 21 / 20 21 / 21 / 17 21 / 18 / NA 21 / 16 / NA 19 / NA / NA

20 < θ ≤ 27 22 / 22 / 22 22 / 22 / 22 22 / 22 / 22 22 / 22 / 22 22 / 22 / 22 22 / 22 / 22 22 / 22 / 19 22 / 19 / 17 21 / NA / NA

27 < θ ≤ 45 21 / 21 / 21 21 / 21 / 21 21 / 21 / 21 21 / 21 / 21 21 / 21 / 21 21 / 21 / 21 21 / 21 / 21 21 / 21 / 19 21 / 19 / NA

45 < θ ≤ 90 25 25 25 25 25 25 25 25 25

θ < 7 20 / 20 / 20 20 / 20 / 20 20 / 20 / 20 20 / 20 / 19 20 / 20 / 16 20 / 19 / NA 20 / 17 / NA 20 / NA / NA 16 / NA / NA


20 < θ ≤ 27 22 / 22 / 22 22 / 22 / 22 22 / 22 / 22 22 / 22 / 22 22 / 21 / 18 22 / 18 / 16 21 / NA / NA 21 / NA / NA 18 / NA / NA

27 < θ ≤ 45 21 / 21 / 21 21 / 21 / 21 21 / 21 / 21 21 / 21 / 21 21 / 21 / 21 21 / 21 / 18 21 / 19 / NA 19 / 17 / NA NA / NA / NA

45 < θ ≤ 90 25 25 25 25 25 25 25 24 19





45 < θ ≤ 90 25 25 25 25 25 25 23 20 16

Snow

Load

Exposure

Category

Roof Pitch

(Degrees)

Wind Speed (MPH)

60 PSF

B

C

D

90 PSF

B

C

D

70 PSF

B

C

D

80 PSF

B

C

D

13 of 20



105 110 115 120 130 140 150 160 180

θ < 7 48 / 41 / 29 48 / 38 / 26 47 / 34 / 24 43 / 31 / 22 36 / 26 / 19 31 / 23 / 16 27 / 19 / NA 23 / 17 / NA 18 / NA / NA

7 < θ ≤ 20 48 / 31 / 26 43 / 28 / 23 39 / 26 / 21 36 / 24 / 19 30 / 20 / 16 26 / 17 / NA 23 / NA / NA 20 / NA / NA NA / NA / NA

20 < θ ≤ 27 48 / 38 / 33 48 / 34 / 30 48 / 31 / 28 48 / 28 / 25 41 / 24 / 21 35 / 21 / 18 30 / 18 / 16 27 / 16 / NA 21 / NA / NA

27 < θ ≤ 45 48 / 47 / 37 48 / 43 / 34 44 / 39 / 31 40 / 36 / 28 34 / 30 / 24 29 / 26 / 20 25 / 22 / 18 22 / 20 / NA 17 / NA / NA

45 < θ ≤ 90 48 48 48 48 43 37 32 28 22


7 < θ ≤ 20 35 / 23 / 19 32 / 21 / 17 29 / 19 / 16 27 / 17 / NA 23 / NA / NA 19 / NA / NA 17 / NA / NA NA / NA / NA NA / NA / NA

20 < θ ≤ 27 48 / 28 / 25 43 / 25 / 22 40 / 23 / 20 36 / 21 / 19 30 / 18 / 16 26 / NA / NA 23 / NA / NA 20 / NA / NA NA / NA / NA


45 < θ ≤ 90 48 46 42 38 32 28 24 21 16

θ < 7 36 / 26 / 18 33 / 24 / 17 30 / 22 / NA 27 / 20 / NA 23 / 17 / NA 20 / NA / NA 17 / NA / NA NA / NA / NA NA / NA / NA

7 < θ ≤ 20 30 / 20 / 16 27 / 18 / NA 25 / 16 / NA 23 / NA / NA 19 / NA / NA 17 / NA / NA NA / NA / NA NA / NA / NA NA / NA / NA

20 < θ ≤ 27 41 / 24 / 21 37 / 22 / 19 34 / 20 / 18 31 / 18 / 16 26 / NA / NA 22 / NA / NA 19 / NA / NA 17 / NA / NA NA / NA / NA

27 < θ ≤ 45 33 / 30 / 24 30 / 27 / 22 28 / 25 / 20 25 / 23 / 18 21 / 19 / NA 18 / 16 / NA 16 / NA / NA NA / NA / NA NA / NA / NA

45 < θ ≤ 90 43 39 36 33 28 24 21 18 NA

θ < 7 48 / 41 / 29 48 / 38 / 26 47 / 34 / 24 43 / 31 / 22 36 / 26 / 19 31 / 23 / 16 27 / 19 / NA 23 / 17 / NA 18 / NA / NA


20 < θ ≤ 27 48 / 38 / 33 48 / 34 / 30 48 / 31 / 28 48 / 28 / 25 41 / 24 / 21 35 / 21 / 18 30 / 18 / 16 27 / 16 / NA 21 / NA / NA

27 < θ ≤ 45 48 / 47 / 37 48 / 43 / 34 44 / 39 / 31 40 / 36 / 28 34 / 30 / 24 29 / 26 / 20 25 / 22 / 18 22 / 20 / NA 17 / NA / NA

45 < θ ≤ 90 48 48 48 48 43 37 32 28 22





45 < θ ≤ 90 48 46 42 38 32 28 24 21 16





45 < θ ≤ 90 43 39 36 33 28 24 21 18 NA

θ < 7 48 / 41 / 29 48 / 38 / 26 47 / 34 / 24 43 / 31 / 22 36 / 26 / 19 31 / 23 / 16 27 / 19 / NA 23 / 17 / NA 18 / NA / NA


20 < θ ≤ 27 48 / 38 / 33 48 / 34 / 30 48 / 31 / 28 48 / 28 / 25 41 / 24 / 21 35 / 21 / 18 30 / 18 / 16 27 / 16 / NA 21 / NA / NA

27 < θ ≤ 45 48 / 47 / 37 48 / 43 / 34 44 / 39 / 31 40 / 36 / 28 34 / 30 / 24 29 / 26 / 20 25 / 22 / 18 22 / 20 / NA 17 / NA / NA

45 < θ ≤ 90 48 48 48 48 43 37 32 28 22





45 < θ ≤ 90 48 46 42 38 32 28 24 21 16





45 < θ ≤ 90 43 39 36 33 28 24 21 18 NA

θ < 7 48 / 41 / 29 48 / 38 / 26 47 / 34 / 24 43 / 31 / 22 36 / 26 / 19 31 / 23 / 16 27 / 19 / NA 23 / 17 / NA 18 / NA / NA


20 < θ ≤ 27 48 / 38 / 33 48 / 34 / 30 48 / 31 / 28 48 / 28 / 25 41 / 24 / 21 35 / 21 / 18 30 / 18 / 16 27 / 16 / NA 21 / NA / NA

27 < θ ≤ 45 48 / 47 / 37 48 / 43 / 34 44 / 39 / 31 40 / 36 / 28 34 / 30 / 24 29 / 26 / 20 25 / 22 / 18 22 / 20 / NA 17 / NA / NA

45 < θ ≤ 90 48 48 48 48 43 37 32 28 22





45 < θ ≤ 90 48 46 42 38 32 28 24 21 16





45 < θ ≤ 90 43 39 36 33 28 24 21 18 NA

25 PSF

B

C

D

10 PSF

B

C

D

20 PSF

B

C

D

Snow

Load

Exposure

Category

Roof Pitch

(Degrees)

Wind Speed (MPH)

0 PSF

B

C

D

14 of 20



105 110 115 120 130 140 150 160 180

θ < 7 48 / 41 / 29 48 / 38 / 26 47 / 34 / 24 43 / 31 / 22 36 / 26 / 19 31 / 23 / 16 27 / 19 / NA 23 / 17 / NA 18 / NA / NA


20 < θ ≤ 27 48 / 38 / 33 48 / 34 / 30 48 / 31 / 28 48 / 28 / 25 41 / 24 / 21 35 / 21 / 18 30 / 18 / 16 27 / 16 / NA 21 / NA / NA

27 < θ ≤ 45 48 / 47 / 37 48 / 43 / 34 44 / 39 / 31 40 / 36 / 28 34 / 30 / 24 29 / 26 / 20 25 / 22 / 18 22 / 20 / NA 17 / NA / NA

45 < θ ≤ 90 48 48 48 48 43 37 32 28 22





45 < θ ≤ 90 48 46 42 38 32 28 24 21 16





45 < θ ≤ 90 43 39 36 33 28 24 21 18 NA

θ < 7 48 / 41 / 29 48 / 38 / 26 47 / 34 / 24 43 / 31 / 22 36 / 26 / 19 31 / 23 / 16 27 / 19 / NA 23 / 17 / NA 18 / NA / NA


20 < θ ≤ 27 48 / 38 / 33 48 / 34 / 30 48 / 31 / 28 47 / 28 / 25 41 / 24 / 21 35 / 21 / 18 30 / 18 / 16 27 / 16 / NA 21 / NA / NA

27 < θ ≤ 45 48 / 47 / 37 48 / 43 / 34 44 / 39 / 31 40 / 36 / 28 34 / 30 / 24 29 / 26 / 20 25 / 22 / 18 22 / 20 / NA 17 / NA / NA

45 < θ ≤ 90 48 48 48 48 43 37 32 28 22





45 < θ ≤ 90 48 46 42 38 32 28 24 21 16





45 < θ ≤ 90 43 39 36 33 28 24 21 18 NA

θ < 7 43 / 41 / 29 43 / 38 / 26 43 / 34 / 24 43 / 31 / 22 36 / 26 / 19 31 / 23 / 16 27 / 19 / NA 23 / 17 / NA 18 / NA / NA


20 < θ ≤ 27 47 / 38 / 33 46 / 34 / 30 45 / 31 / 28 44 / 28 / 25 41 / 24 / 21 35 / 21 / 18 30 / 18 / 16 27 / 16 / NA 21 / NA / NA

27 < θ ≤ 45 44 / 44 / 37 44 / 43 / 34 44 / 39 / 31 40 / 36 / 28 34 / 30 / 24 29 / 26 / 20 25 / 22 / 18 22 / 20 / NA 17 / NA / NA

45 < θ ≤ 90 48 48 48 48 43 37 32 28 22





45 < θ ≤ 90 48 46 42 38 32 28 24 21 16





45 < θ ≤ 90 43 39 36 33 28 24 21 18 NA

θ < 7 35 / 35 / 29 35 / 35 / 26 35 / 34 / 24 35 / 31 / 22 35 / 26 / 19 31 / 23 / 16 27 / 19 / NA 23 / 17 / NA 18 / NA / NA


20 < θ ≤ 27 39 / 38 / 33 39 / 34 / 30 39 / 31 / 28 38 / 28 / 25 36 / 24 / 21 34 / 21 / 18 30 / 18 / 16 27 / 16 / NA 21 / NA / NA

27 < θ ≤ 45 36 / 36 / 36 36 / 36 / 34 36 / 36 / 31 36 / 36 / 28 34 / 30 / 24 29 / 26 / 20 25 / 22 / 18 22 / 20 / NA 17 / NA / NA

45 < θ ≤ 90 42 42 42 42 42 37 32 28 22





45 < θ ≤ 90 42 42 42 38 32 28 24 21 16





45 < θ ≤ 90 42 39 36 33 28 24 21 18 NA

50 PSF

B

C

D

35 PSF

B

C

D

40 PSF

B

C

D

Roof Pitch

(Degrees)

Wind Speed (MPH)

30 PSF

B

C

D

Snow

Load

Exposure

Category

15 of 20



105 110 115 120 130 140 150 160 180

θ < 7 30 / 30 / 29 30 / 30 / 26 30 / 30 / 24 30 / 30 / 22 30 / 26 / 19 30 / 23 / 16 27 / 19 / NA 23 / 17 / NA 18 / NA / NA


20 < θ ≤ 27 33 / 33 / 33 33 / 33 / 30 33 / 31 / 28 33 / 28 / 25 32 / 24 / 21 31 / 21 / 18 29 / 18 / 16 27 / 16 / NA 21 / NA / NA

27 < θ ≤ 45 30 / 30 / 30 30 / 30 / 30 30 / 30 / 30 30 / 30 / 28 30 / 30 / 24 29 / 26 / 20 25 / 22 / 18 22 / 20 / NA 17 / NA / NA

45 < θ ≤ 90 36 36 36 36 36 36 32 28 22





45 < θ ≤ 90 36 36 36 36 32 28 24 21 16





45 < θ ≤ 90 36 36 36 33 28 24 21 18 NA

θ < 7 26 / 26 / 26 26 / 26 / 26 26 / 26 / 24 26 / 26 / 22 26 / 26 / 19 26 / 23 / 16 26 / 19 / NA 23 / 17 / NA 18 / NA / NA


20 < θ ≤ 27 28 / 28 / 28 28 / 28 / 28 28 / 28 / 28 28 / 28 / 25 28 / 24 / 21 28 / 21 / 18 26 / 18 / 16 25 / 16 / NA 21 / NA / NA

27 < θ ≤ 45 26 / 26 / 26 26 / 26 / 26 26 / 26 / 26 26 / 26 / 26 26 / 26 / 24 26 / 26 / 20 25 / 22 / 18 22 / 20 / NA 17 / NA / NA

45 < θ ≤ 90 32 32 32 32 32 32 32 28 22





45 < θ ≤ 90 32 32 32 32 32 28 24 21 16





45 < θ ≤ 90 32 32 32 32 28 24 21 18 NA

θ < 7 23 / 23 / 23 23 / 23 / 23 23 / 23 / 23 23 / 23 / 22 23 / 23 / 19 23 / 23 / 16 23 / 19 / NA 23 / 17 / NA 18 / NA / NA


20 < θ ≤ 27 25 / 25 / 25 25 / 25 / 25 25 / 25 / 25 25 / 25 / 25 25 / 24 / 21 25 / 21 / 18 24 / 18 / 16 23 / 16 / NA 21 / NA / NA

27 < θ ≤ 45 23 / 23 / 23 23 / 23 / 23 23 / 23 / 23 23 / 23 / 23 23 / 23 / 23 23 / 23 / 20 23 / 22 / 18 22 / 20 / NA 17 / NA / NA

45 < θ ≤ 90 28 28 28 28 28 28 28 28 22





45 < θ ≤ 90 28 28 28 28 28 28 24 21 16





45 < θ ≤ 90 28 28 28 28 28 24 21 18 NA

θ < 7 20 / 20 / 20 20 / 20 / 20 20 / 20 / 20 20 / 20 / 20 20 / 20 / 19 20 / 20 / 16 20 / 19 / NA 20 / 17 / NA 18 / NA / NA


20 < θ ≤ 27 22 / 22 / 22 22 / 22 / 22 22 / 22 / 22 22 / 22 / 22 22 / 22 / 21 22 / 21 / 18 22 / 18 / 16 21 / 16 / NA 20 / NA / NA

27 < θ ≤ 45 21 / 21 / 21 21 / 21 / 21 21 / 21 / 21 21 / 21 / 21 21 / 21 / 21 21 / 21 / 20 21 / 21 / 18 21 / 20 / NA 17 / NA / NA

45 < θ ≤ 90 25 25 25 25 25 25 25 25 22





45 < θ ≤ 90 25 25 25 25 25 25 24 21 16





45 < θ ≤ 90 25 25 25 25 25 24 21 18 NA

90 PSF

B

C

D

70 PSF

B

C

D

80 PSF

B

C

D

Roof Pitch

(Degrees)

Wind Speed (MPH)

60 PSF

B

C

D

Snow

Load

Exposure

Category

16 of 20

Appendix A: Snow Load Conversion This appendix is applicable for Authorities Having Jurisdiction (AHJ’s) with minimum roof snow loads OR non-reducible

ground snow loads for roof pitches under 45 degrees and roof pitches between 45 and 90 degrees.

Mount spacing tables were compiled utilizing ground snow loads, which are reduced to flat roof snow loads for pitches

under 45 degrees, and to sloped roof snow loads for roof pitches between 45 and 90 degrees. For AHJ’s specifying

minimum roof snow loads or non-reducible ground snow loads, the user shall convert the specified snow load to the

equivalent ground snow load in the Snow Load Conversion Table below to utilize the SnapNrack RL Universal Mount

Spacing Table(s).

Snow Load Conversion Table

Specified

Minimum Roof

Snow Load (psf)

Equivalent Ground Snow Load (psf)

for use in Span Table(s)

Roof Pitch:

0° ≤ θ < 45°

Roof Pitch:

45° ≤ θ ≤ 90°

10 20 20

20 25 40

25 35 60

30 40 60

35 50 80

40 60 90

50 70 NA

60 80 110

70 90 120

80 100 NA

90 120 NA

Table B: Conversion Table for Minimum Specified and/or Non-Reducible Snow Loads

Note: Calculated Snow Loads for roof-mounted solar photovoltaic installations assume Risk Category II.

Example Conversion

Given(s): AHJ requires minimum 30 psf roof snow load.

Existing roof pitch is 6 in 12 = 27°

Step 1) Locate specified roof snow load in column 1 (30 psf).

Step 2) Determine which Roof Pitch column applies. Column 2 applies for

the given condition.

Step 3) Select 40 psf from column 2 as the equivalent ground snow load for use in the Span Table(s).

25 35 60

30 40 60

35 50 80

Step 1 Step 2

Step 3

17 of 20

Appendix B: Worst Case Reactions

The following are the maximum RL Universal System factored (ASD) reactions:

RL - Composition Shingle Roof Factored (ASD)

Reactions

Load Type Magnitude

Tension (Uplift): 623 Lbs

Compression (Down Force): 674 Lbs

Lateral (Down Slope): 505 Lbs

Load Direction Diagram

18 of 20

Appendix C: RL Universal Cantilever Deck Mount

SnapNrack RL Universal Cantilever Deck Mount Zone 1 / Zone 2

Roof Height: 0-30 ft

Exposure

Category

Roof Pitch

(Degrees)

Wind Speed (MPH)

105 110 115 120 130 140 150 160 180

B

θ < 7 1/1 1/1 1/1 1/1 1/2 1/2 1/2 1/2 2/-

7 < θ ≤ 20 1/1 1/1 1/1 1/1 1/2 1/2 1/2 1/2 2/-

20 < θ ≤ 27 1/1 1/1 1/1 1/1 1/2 1/2 1/2 1/2 2/2

27 < θ ≤ 45 1/1 1/1 1/1 1/1 1/1 1/1 1/2 1/2 2/2

45 < θ ≤ 90 1/1 1/1 1/1 1/1 1/1 2/2 2/2 2/2 2/2

C

θ < 7 1/2 1/2 1/2 1/2 1/2 1/2 2/- 2/- 2/-

7 < θ ≤ 20 1/2 1/2 1/2 1/2 1/2 1/2 2/- 2/- 2/-

20 < θ ≤ 27 1/2 1/2 1/2 1/2 1/2 1/2 2/- 2/- 2/-

27 < θ ≤ 45 1/1 1/1 1/1 1/1 1/2 2/2 2/2 2/2 2/-

45 < θ ≤ 90 1/1 1/1 1/1 2/2 2/2 2/2 2/2 2/2 -/-

SnapNrack RL Universal Cantilever Deck Mount Zone 1 / Zone 2

Roof Height: 30-60 ft

Exposure

Category

Roof Pitch

(Degrees)

Wind Speed (MPH)

105 110 115 120 130 140 150 160 180

B

θ < 7 1/1 1/1 1/2 1/2 1/2 1/2 2/2 2/- 2/-

7 < θ ≤ 20 1/1 1/1 1/2 1/2 1/2 1/2 2/2 2/- 2/-

20 < θ ≤ 27 1/1 1/1 1/1 1/2 1/2 1/2 1/2 2/2 2/-

27 < θ ≤ 45 1/1 1/1 1/1 1/1 1/1 1/2 2/2 2/2 2/2

45 < θ ≤ 90 1/1 1/1 1/1 1/1 2/2 2/2 2/2 2/2 -/-

C

θ < 7 1/2 1/2 1/2 1/2 1/2 2/- 2/- 2/- 2/-

7 < θ ≤ 20 1/2 1/2 1/2 1/2 1/2 2/- 2/- 2/- 2/-

20 < θ ≤ 27 1/2 1/2 1/2 1/2 1/2 2/- 2/- 2/- 2/-

27 < θ ≤ 45 1/1 1/1 1/1 1/2 2/2 2/2 2/2 2/2 2/-

45 < θ ≤ 90 2/2 2/2 2/2 2/2 2/2 2/2 2/2 -/- -/-

NOTES: • 1 = Single Column of Deck Mounts required

• 2 = Double column of Deck Mounts required

• "Column" is defined as a colinear arrangement of mounts running parallel to rafters

• RL Universal Cantilever Deck Mount solution not applicable in Zone 3 or Exposure Category D.

• RL Universal Cantilever Deck Mount solution is applicable to an over-extended cantilever application. Deck

mount is not required when standard cantilever is installed. See sheet SNR-DC-00362.

19 of 20

APPENDIX C - NOTES (CONTINUED):

• See sheet SNR-DC-00366 for Deck Mount system detail and installation specifications.

• The above tables are applicable for Portrait and Landscape orientation.

• The above tables are applicable for ground snow loads of 0 - 90 psf.

20 of 20

OVERVIEW

ALLOWABLE CANTILVER DETAILS

CANTILEVER MODIFICATION BY MOUNT FLIP

DESCRIPTION:DRAWING NUMBER:SCALE:

DESIGNER:

APPROVED BY:

REVISION:

Sunrun South LLC

595 MARKET STREET, 29TH FLOOR ● SAN FRANCISCO, CA 94105 USA

PHONE (415) 580-6900 ● FAX (415) 580-6902

THE INFORMATION IN THIS DRAWING IS CONFIDENTIAL AND PROPRIETARY. ANY

REPRODUCTION, DISCLOSURE, OR USE THEREOF IS PROHIBITED WITHOUT THE

WRITTEN CONSENT OF SUNRUN SOUTH LLC.

RL UNIVERSAL, SYSTEM OVERVIEW,

FLASHTRACK ON COMP

SNR-DC-00362

1 5/1/2019 NEW DETAIL

REV:

1

DATE:

NTS

5/1/2019

DRAFTER: B.PETERSON

B.PETERSON

B.PETERSON

Solar Mounting Solutions

BDP

SNAPNRACK RL UNIVERSAL SOLAR

MOUNTING SOLUTION INSTALLED ON

COMPOSITION SHINGLE ROOF

ROOF ATTACHMENT: SNAPNRACK

FLASHTRACK COMP

MODULE ATTACHMENT: SNAPNRACK RL

UNIVERSAL MOUNT

SNAPNRACK RL UNIVERSAL LINKS

CONNECT MODULE FRAMES TOGETHER TO

ACT AS A CONTINUOUS STRUCTURAL

ELEMENT

LANDSCAPE AND PORTRAIT

INSTALLATIONS SHOWN

STANDARD MODULE,

LANDSCAPE ORIENTATION (TYP.)

ROOF RAFTER (TYP.)

ROOF ATTACHEMENTS SHALL

BE EMBEDED INTO

ROOF RAFTERS OR OTHER

STRUCTRUAL MEMBERS

ROOF SHEATHING, UNDERLAYMENT,

AND ROOFING MATERIAL (TYP.)

SNAPNRACK FLASHTRACK COMP (TYP.)

SNAPNRACK RL UNIVERSAL MOUNT (TYP.)

SNAPNRACK RL UNIVERSAL

LANDSCAPE SKIRT (TYP.)

SNAPNRACK RL UNIVERSAL LINK (TYP.)

SNAPNRACK RL UNIVERSAL DOUBLE PORTRAIT SKIRT (TYP.)

STANDARD MODULE, PORTRAIT ORIENTATION (TYP.)

MODULE CANTILEVER IS THE DISTANCE BETWEEN THE MODULE EDGE AND THE EDGE OF THE MOUNT.

MAXIMUM CANTILEVER (NOT TO SCALE) IS PERMITTED TO BE

L

3 WHERE L IS THE CORRESPONDING MAXIMUM SPACING NOTED IN THE TABLE(S) SO LONG AS THE SPACING

BETWEEN CANTILEVERS (Y) IS GREATER THAN OR EQUAL TO (1) PANEL LENGTH. PANEL LENGTH IS DEFINED AS THE MODULE DIMENSION PARALLEL TO THE EAVE.

WHEN A CANTILEVER LENGTH EXCEEDS

L

3, MOUNTING THE RL FLASH TRACK DIRECTLY TO THE ROOF DECK IS ACCEPTABLE TO ADD SUPPORT TO THE OVER-EXTENDED

CANTILEVER. SEE APPENDIX A FOR ALLOWABLE CONDITIONS AND DETAIL SNR-DC-00366 FOR INSTALLATION REQUIREMENTS.

IN ALL OTHER CASES, THE MAXIMUM CANTILEVER LENGTH IS LIMITED TO

1

3 OF THE MOUNT SPACING AND CANNOT EXCEED 2'-0".

CANTILEVER LENGTH SPACING BETWEEN CANTILEVERS, Y CANTILEVER LENGTH

MOUNT SPACING, L

(# OF SPACINGS VARY)

ROOF DECK

RAFTER (TYP.)

RL UNIVERSAL MOUNT (TYP.)

MODULE (TYP.)

CANTILEVER LENGTH

CANTILEVER LENGTH

MOUNT MAY BE

FLIPPED TO MODIFY

CANTILEVER

MODULE CANTILEVER MEASURED FROM EDGE OF CLAMP

MODULE CANTILEVER NOT TO EXCEED

1

3 OF TABULATED SPAN (24" MAX)

WHERE MODULE CANTILEVER EXCEEDS

1

3 OF TABLULATED SPAN, SEE NOTE

ABOVE

MOUNT SPACING

(DISTANCE BETWEEN

ROOF ATTACHEMENTS)

SEE APPROPRIATE

ENGINEERING TABLES FOR

MAXIMUM SUPPORT SPACING

CLAMP-SLEEVE ATTACHMENT


MOUNT, ASSEMBLY


MOUNT, EXPLODED

MOUNT "FLIP-FLOP" ABILITY


DESIGNER:

APPROVED BY:

REVISION:

Sunrun South LLC


PHONE (415) 580-6900 ● FAX (415) 580-6902




RL UNIVERSAL, COMPONENT DETAIL, MOUNT

SNR-DC-00363


REV:

1

DATE:

NTS

5/1/2019

DRAFTER:M.AFFENTRANGER

B.PETERSON

B.PETERSON


MJA

COMPONENT DETAIL FOR THE

SNAPNRACK RL UNIVERSAL MOUNT

THE RL UNIVERSAL MOUNT UTILIZES A

"CLAMP-SLEEVE" METHOD OF MODULE

ATTACHMENT TO ALLOW A ROCK-IN

INSTALLATION OF THE UPSLOPE

MODULE. SEE "CLAMP-SLEEVE

ATTACHMENT" VIEW

RL UNIVERSAL MOUNTS BOND ACCROSS

PV ARRAY ROWS VIA THE RL UNVIERSAL

BONDING CLIP

THE RL UNIVERSAL MOUNT PROVIDES A

FIXED

3

4" GAP BETWEEN PV MODULE

ROWS

FOR UNEVEN ROOF SURFACES EACH

MOUNT HAS 1" OF LEVELING CAPABILITY

IN

1

8" INCREMENTS.

REFER TO SNAPNRACK INSTALLATION

MANUAL FOR HARDWARE TORQUE

SPECIFICATIONS

3

4

" FIXED

ROW SPACING

RL UNIVERSAL MOUNT LIMITS ON FLASHTRACK:

MOUNT MUST NOT HANG OVER EITHER EDGE

OF FLASHTRACK, AS SHOWN

CLAMP SIDE,

DOWNSLOPE

SLEEVE SIDE, UPSLOPE

PV MODULE

SNAPNRACK

FLASHTRACK

SNAPNRACK RL UNIVERSAL MOUNT

COIL SPRING FOR

Ø

3

8" BOLT, S.S.

(OPTIONAL)


BONDING CLIP, S.S.

BLACK


MOUNT TOP, BLACK


MOUNT BOTTOM

SNAPNRACK ROCK-IN

CHANNEL NUT

SNAPNRACK RL

UNIVERSAL RISER

SNAPNRACK RL

UNIVERSAL LEVELER

Ø

5

16"-16 X 1" LENGTH

BOLT, S.S.

(TORQUE TO SPECIFICATION)

Ø

5

16"-16 X

3

4" LENGTH

BOLT, S.S.


THE SNAPNRACK RL UNIVERSAL MOUNT

ATTACHES TO THE SNAPNRACK FLASHTRACK.

IT CAN BE "FLIP-FLOPPED" IN THE

FLASHTRACK, AS SHOWN, TO REDUCE

MODULE CANTILEVER AND ELIMINATE

MOUNT-LINK INTERFERENCE

SNAPNRACK FLASHTRACK

MODULE HEIGHT OFF ROOF:

3

1

2

"-4

1

2

"

Ø

3

8"-16 X 2

3

4" LENGTH

BOLT

1

2" HEX HEAD, S.S.


SNAPNRACK UMBRELLA LAG SCREW


LINK ASSEMBLY

SNAPNRACK RL UNIVERSAL LINK, EXPLODED

RL UNIVERSAL LINK PLACEMENT

CLAMP-SLEEVE ATTACHMENT


DESIGNER:

APPROVED BY:

REVISION:

Sunrun South LLC


PHONE (415) 580-6900 ● FAX (415) 580-6902




RL UNIVERSAL, COMPONENT DETAIL, LINK

SNR-DC-00364


REV:

1

DATE:

NTS

5/1/2019


B.PETERSON

B.PETERSON


MJA

COMPONENT DETAIL FOR THE SNAPNRACK RL

UNIVERSAL LINK

THE RL UNIVERSAL LINK UTILIZES A

"CLAMP-SLEEVE" METHOD OF MODULE

ATTACHMENT TO ALLOW A ROCK-IN

INSTALLATION OF THE UPSLOPE MODULE. SEE

"CLAMP-SLEEVE ATTACHMENT" VIEW

RL UNIVERSAL LINKS BOND ACCROSS PV ARRAY

COLUMNS VIA BONDING PINS

THE OPTIONAL RL UNIVERSAL LINK COLUMN

SPACER PROVIDES A

3

4" COLUMN GAP BETWEEN

PV MODULES - COLUMN SPACING IS NOT TO

EXCEED

3

4". THE LINK COLUMN SPACER CAN BE

REMOVED TO DECREASE COLUMN SPACING,

HOWEVER SYSTEMS DESIGNED ACCORDING TO

ASCE 7-16 MUST BE RE-EVALUATED FOR CODE

COMPLIANCE, AS MODULE SPACING CORRELATES

TO APPLIED LOADS

REFER TO SNAPNRACK INSTALLATION MANUAL

FOR HARDWARE TORQUE SPECIFICATIONS

CLAMP SIDE,

DOWNSLOPE

SLEEVE SIDE,

UPSLOPE

(2X) Ø

3

8"-16 X 2

3

4" LENGTH

BOLT

1

2" HEX HEAD, S.S.


SNAPNRACK RL

UNIVERSAL LINK TOP


LINK BOTTOM


LINK COLUMN SPACER

(OPTIONAL)

COIL SPRING FOR

Ø

3

8" BOLT, S.S.

(OPTIONAL)

NEVER CLAMP (X2) MODULES WITH

A RL UNIVERSAL, MOUNT. REFER TO

CASE 2

(4X) PV MODULE

STRUCTURAL MEMBER,

WOOD RAFTER, TYP.

SNAPNRACK RL

UNIVERSAL MOUNT

CASE 1: (X2) MODULES ON A MOUNT

NOT ALLOWED

CASE 2: FLIP MOUNT IN TRACK

ALLOWED

CASE 3: MIN. LINK CLAMPING SURFACE

ALLOWED

PV MODULE

SNAPNRACK RL

UNIVERSAL MOUNT

SNAPNRACK RL UNIVERSAL LINK

TO PREVENT CASE 1, FLIP MOUNT

IN FLASH TRACK (REFER TO SD-00209)

AND CLAMP TWO MODULES WITH A

RL UNIVERSAL LINK. CENTER MODULE

GAP BETWEEN CENTER ALINGMENT MARKS

ON LINK, AS SHOWN.

3

4

" MAX MODULE

COLUMN SPACING

3

4

" MODULE

ROW SPACING

1" MIN. MODULE

CLAMPING SURFACE.

ALIGN MODULE EDGE WITH

OUTER ALIGNMENT MARK

ON RL UNIVERSAL LINK

NOTE, RL UNIVERSAL

LINK SPACER SLIDES

ALONG LINK TO PROVIDE

MODULE SPACING

WHERE NEEDED

IF MODULE FALLS OUTSIDE OF

OUTER ALIGNMENT MARK,

FLIP MOUNT (REFER TO SD-00209)

IN TRACK AND REATTACH LINK.

SNAPNRACK RL

UNIVERSAL LINK

OUTER ALIGNMENT

MARKS

CENTER ALGINMENT

MARKS

TO RIDGE

DETAIL A

SNAPNRACK, RL UNIVERSAL

LINK WITH SKIRT SPACERS

SKIRT CONNECTIONS


MOUNT WITH SKIRT SPACER

SKIRT SPACER, 32 MM

(GOLD)

SKIRT SPACER, 35 MM

(BLUE)

SKIRT SPACER, 38 MM

(BLACK)

SKIRT SPACER, 40 MM

(SILVER)

A


DESIGNER:

APPROVED BY:

REVISION:

Sunrun South LLC


PHONE (415) 580-6900 ● FAX (415) 580-6902




RL UNIVERSAL, SYSTEM DETAIL, SKIRT AND

SKIRT SPACER

SNR-DC-00365


REV:

1

DATE:

NTS

5/1/2019


B.PETERSON

B.PETERSON


MJA

SNAPNRACK RL UNIVERSAL FRONT ROW

WITH SKIRT DETAILS

AVAILABLE IN TWO LENGTHS:

- LANDSCAPE: SIZED TO LONG END OF

60-CELL MODULE

- DOUBLE PORTRAIT: SIZED TO TWO

SHORT ENDS OF A MODULE PLUS A

3

4"

MODULE SPACING

- NOTE: CUTTING SKIRT DOWN TO

DESIRED LENGTH IS PERMITTED

RL UNIVERSAL SKIRTS AND SKIRT SPACERS

ARE REQUIRED ON THE FRONT ROW OF AN

ARRAY TO:

1. SET THE CLAMP HEIGHT OF THE FIRST

ROW OF RL UNIVERSAL MOUNTS / LINKS

TO THAT OF THE INSTALLED MODULES FOR

A PROPER ROCK-IN INSTALLATION

2. PROVIDE STRUCTURAL INTEGRITY TO

THE FIRST ROW OF MOUNTS AND LINKS

HEIGHT SPECIFIC SKIRT SPACERS MUST BE

MATCHED TO THE FRAME HEIGHT OF THE

MODULE INSTALLED. REFER TO SPACER

COLORS AND SIZE MARKINGS, AS SHOWN

REFER TO SNAPNRACK INSTALLATION

MANUAL FOR HARDWARE TORQUE

SPECIFICATIONS

(X1) SKIRT SPACER PER

RL UNIVERSAL MOUNT

(X3) SKIRT SPACERS PER

RL UNIVERSAL LINK

BUTT RL UNIVERSAL SKIRTS TOGETHER

AND SPLICE WITH THE RL UNIVERSAL LINK.

LOCATE SKIRT JOINT WITHIN OUTER MARKS

ON THE LINK, AS SHOWN

COLOR AND SIZE STAMP

ARE MATCHED TO MODULE

FRAME HEIGHT

SNAPNRACK RL UNIVERSAL SKIRTS.

REQUIRED ON THE FRONT ROW OF ARRAYS.

SEE SNR-DC-00368 FOR DETAILS ON STAGGERED

ARRAYS

RL UNIVERSAL SKIRT

(PORTRAIT OR DOUBLE

LANDSCAPE LENGTHS, TYP.)


LINK. SKIRT ALSO

COMPATIBLE WITH SNAPNRACK,

RL UNIVERSAL MOUNT

RL UNIVERSAL

SKIRT SPACER

CATCH OF SPACER MUST

FULLY ENGAGE MOUNT OR

LINK BOTTOM, AS SHOWN

ENSURE CATCHES ON TOP AND BOTTOM OF

SKIRT ARE FULLY SEATED INTO FEATURES ON

MOUNT AND SKIRT SPACER, AS SHOWN

PV MODULE, TYP.

STRUCTURAL MEMBERS,

WOOD RAFTER, TYP.

RL UNIVERSAL MOUNT

WITH FLASH TRACK

AND FLASHING, TYP.

PV MODULE, TYP.

SNAPNRACK,

RL UNIVERSAL LINK

SNAPNRACK,

RL UNIVERSAL MOUNT

SECTION E-E

SCALE 1 / 3

E

E


DESIGNER:

APPROVED BY:

REVISION:

Sunrun South LLC


PHONE (415) 580-6900 ● FAX (415) 580-6902




RL UNIVERSAL, SYSTEM DETAIL, DECK MOUNT

SNR-DC-00366


REV:

1

DATE:

NTS

5/1/2019

DRAFTER: B.PETERSON

B.PETERSON

B.PETERSON


BDP

SNAPNRACK RL UNIVERSAL SOLAR MOUNTING SOLUTION DECK MOUNT DETAIL

WHEN CANTILEVER LENGTH EXCEEDS

L

3, MOUNTING THE RL COMP FLASH TRACK DIRECTLY TO ROOF DECK IS PERMISSABLE

TO ADD SUPPORT TO THE OVER-EXTENDED CANTILEVER. SEE TABLE IN APPENDIX A FOR CONDITIONS WHEN SINGLE OR

DOUBLE COLUMNS OF DECK MOUNTS ARE ACCEPTABLE. COLUMN IS DEFINED AS A COLINEAR ARRANGEMENT OF MOUNTS

RUNNING PARALLEL TO RAFTERS

WHEN A SINGLE COLUMN OF DECK MOUNTS ARE PERMITTED PER APPENDIX A, THEN DECK MOUNTS MUST BE ATTACHED

BETWEEN THE CENTER OF THE CANTILEVERED PORTION AND THE OUTER EDGE OF THE MODULE. IF DOUBLE COLUMNS OF

DECK MOUNTS ARE SPECIFIED, DISTRIBUTE THE DECK MOUNTS AT

1

3 AND

2

3 OF THE CANTILEVER

STANDARD MODULE (TYP.)

(PORTRAIT ORIENTATION

SHOWN)

SUPPORT SPACING, L

(DISTANCE BETWEEN

ROOF ATTACHMENTS)

SEE APPROPRIATE

ENGINEERING TABLES FOR

MAXIMUM SUPPORT SPACING

MODULE CANTILEVER FROM

EDGE OF CLAMP,

L

3 (24" MAX)

SEE SNR-DC-00362 FOR

FURTHER DETAILS

ROOF RAFTER (TYP.)

ROOF ATTACHMENT SHALL

ALWAYS BE EMBEDDED INTO


STRUCTURAL MEMBERS

OVER-EXTENDED CANTILEVER

GREATER THAN

L

3 LIMIT

SEE APPENDIX FOR

CONDITIONS WHERE DECK

MOUNTING IS PERMISSABLE

FOR SINGLE

COLUMN LOCATE

DECK MOUNT

BETWEEN CENTER

TO END

X

2

X (2'-0" MAX)

X

3

FOR DOUBLE

COLUMN LOCATE

DECK MOUNTS

X

3

AND 2

X

3

FROM RAFTER

FOR DECK MOUNTS

INSTALL MOUNT

DIRECTLY ABOVE

THE LAG, CUT COMP

AS REQUIRED TO SET

FLASHINGUMBREALLA

WASHER (TYP.)

SNAPNRACK RL UNIVERSAL MOUNT (TYP.)

SNAPNRACK

RL UNIVERSAL

LINK (TYP.)

FLASHINGS MAY

OVERLAP

FLASHING (TYP.)


FOR STANDARD COMPOSITION SHINGLE,

2" X

5

16" STAINLESS STEEL LAG SCREW

FOR PRESIDENTIAL COMPOSITION SHINGLE,

2

1

2" X

5

16" STAINLESS STEEL LAG SCREW

DECK MOUNT

0.5" MIN PROTRUSION FROM DECK

DETAIL A

RIDGE MOUNT COMPONENTS

RIDGE MOUNT, TOP VIEW

RIDGE MOUNT, BEYOND

MAX. EXTENSION

A


DESIGNER:

APPROVED BY:

REVISION:

Sunrun South LLC


PHONE (415) 580-6900 ● FAX (415) 580-6902




RL UNIVERSAL, SYSTEM DETAIL, RIDGE MOUNT

SNR-DC-00367


REV:

1

DATE:

NTS

5/1/2019

DRAFTER:D.RYAN

B.PETERSON

B.PETERSON


DR

SNAPNRACK RL UNIVERSAL RIDGE MOUNT

DETAILS

REFER TO INSTALLATION MANUAL FOR

FASTENER TORQUE VALUES

FOR UNEVEN ROOF SURFACES, EACH

MOUINT HAS 1" OF LEVLEING CAPABILITY

IN

1

8" INCREMENTS

LEVELER CAN BE SECURED IN ANY

POSITION ALONG THE SIDE CHANNELS OF

THE RIDGE EXTENSION

REFER TO RIDGE MOUNT TOP VIEW FOR

EXTENSION LIMITS

**RIDGE MOUNT CLAMP BOLT ONLY

CLAMPS THE MODULE BELOW. NO MODULE

PLACED UPSLOPE OF RIDGE EXTENSION

MODULE

MODULE

RIDGE MOUNT TRACK

RIDGE MOUNT EXTENSION

LEVELER

RIDGE MOUNT TRACK

S.S. LEVELER

BOLT

TRACK TO RIDGE

EXTENSION BOLT


MOUNT WITH SKIRT

SPACER AND SKIRT INSTALLED

SNAPNRACK

RL UNIVERSAL

MOUNT


RIDGE MOUNT

S.S. LEVELER BOLT

LEVELER

S.S. MOUNT CLAMP BOLT

MIN. 5" END

OF FLASHING

TO RIDGE

SNAPNRACK RIDGE

EXTENSION

POSITION RIDGE EXTENSION ON

TRACK SO THAT HATCHED PATTERN

IS VISIBLE ON ONE SIDE ONLY

RL UNIVERSAL

SKIRT

2-

1

2

" MIN. EMBEDMENT

INTO RAFTER OR

STRUCTURAL MEMBER

5

16" S.S. LAG SCREW

MODULE CLAMP

DETAIL A

A


DESIGNER:

APPROVED BY:

REVISION:

Sunrun South LLC


PHONE (415) 580-6900 ● FAX (415) 580-6902




RL UNIVERSAL, SYSTEM OVERVIEW,

STAGGERED ARRAYS

SNR-DC-00368


REV:

1

DATE:

NTS

5/28/2019

DRAFTER:D.RYAN

B.PETERSON

B.PETERSON


DR

SNAPNRACK RL UNIVERSAL SOLAR MOUNTING SOLUTION INSTALLED ON A COMPOSITION SHINGLE ROOF

MINIMIZE ROOF ATTACHMENTS ON STAGGERED ARRAYS BY USING A SNAPNRACK RL UNIVERSAL LINK TO SUPPORT THE

MODULE CANTILEVER INSTEAD OF A ROOF MOUNT

FOR LINK DETAILS REFER TO "SNR-DC-00364 RL UNIVERSAL, COMPONENT DETAIL, LINK"

REQUIREMENTS FOR LINKS ON STAGGERED ARRAYS:

1) WHEN LINKING PANELS IN THE SAME ROW, A LINK SHALL OCCUR WITHIN 1" TO 6" FROM THE NEAREST ADJACENT

MODULE PANEL EDGE

2) ROOF ATTACHMENT SPACING(S) SHALL NOT BE EXCEEDED WITH THE USE OF LINK(S)

3) IN ANY CASE, A MAX OF (2) ROOF ATTACHMENTS PER MODULE MAY BE REPLACED WITH UTILIZATION OF LINK(S)

RL UNIVERSAL LINK (TYP.)

REFER TO SNR-DC-00364


RL UNIVERSAL LANDSCAPE SKIRT (TYP.)

STANDARD MODULE (TYP.)

SUPPORT SPACING (DISTANCE

BETWEEN ROOF ATTACHMENTS),

SEE APPROPRIATE ENGINEERING

TABLES FOR MAXIMUM SUPPORT

SPACING

RL UNIVERSAL MOUNT

RL UNIVERSAL LINK

LINK SHALL OCCUR

WITHIN 1" TO 6" FROM

THE NEAREST ADJACENT

MODULE PANEL EDGE

COMPLETED INSTALLATION

COMPLETED INSTALLATION

SECTION VIEW

DETAIL A

A


DESIGNER:

APPROVED BY:

REVISION:

Sunrun South LLC


PHONE (415) 580-6900 ● FAX (415) 580-6902




RL UNIVERSAL, ATTACHMENT DETAIL,

FLASHTRACK ON COMP

SNR-DC-00369


REV:

1

DATE:

NTS

5/1/2019

DRAFTER:D.RYAN

B.PETERSON

B.PETERSON


DR

SNAPNRACK RL UNIVERSAL FLASHTRACK COMP MOUNTING

EMBED 5

16" UMBRELLA LAG SCREW 2-1/2" INTO THE ROOF

STRUCTURAL MEMBER / RAFTER

FOR TORQUE SPECIFICATIONS SEE INSTALLATION MANUAL

ROOF RAFTER (TYP.)

ROOF ATTACHMENTS SHALL

BE EMBEDDED INTO


STRUCTURAL MEMBERS

ROOF SHEATHING, UNDERLAYMENT,

AND ROOFING MATERIAL (TYP.)

ROOF DECKING

ROOFING MATERIAL

ROOFING

MATERIAL

2-1/2" MIN. EMBEDMENT

INTO RAFTER OR

STRUCTURAL MEMBER

COMP FLASHING

RAFTER

ROOF SHEATHING

FLASHING SHOULD NOT EXTEND

PAST END OF SHINGLE COURSE

5

16" S.S. UMBRELL LAG SCREW

2-

1

2" MINIMUM EMBEDMENT

FLASHTRACK COMP

5

16" S.S. UMBRELLA LAG SCREW

FLASH TRACK SHOULD BE INSTALLED PARALLEL TO RAFTER

FLASHTRACK

COMP

FLASHTRACK

COMP

COMP FLASHING

(HATCHED)

UMBRELLA GASKET

(SHADED GRAY)

ROOFING

MATERIAL

COMP FLASHING

SLIP FLASHING UNDER

SHINGLE ABOVE

PILOT HOLE

July 5, 2019 Re: Engineering Certification for the ...

Documents

Transcript of July 5, 2019 Re: Engineering Certification for the ...