Building Codes Division - Oregon Codes Division 1535 Edgewater Street NW P.O. Box 14470 Salem, OR...

Building Codes Division 1535 Edgewater Street NW

P.O. Box 14470 Salem, OR 97309-0404

503-378-4133 Fax: 503-378-2322

oregon.gov/bcd

Kate Brown, Governor

Residential and Manufactured Structures Board

Additional meeting agenda

Thursday, November 30, 2017, 9:30 a.m.

Conference Room A

Board meetings are broadcast live via the Internet at

http://www.oregon.gov/bcd

Click on “View live meetings”

I. Board business A. Call to order

B. Roll call

C. Approval of agenda and order of business

D. Approval of the October 4, 2017, board meeting draft minutes

E. Date of the next scheduled meeting: January 10, 2018 (Holiday schedule)

II. Public comment This time is available for individuals wanting to address the Board on non-agenda items only. The Board will not

take action on non-agenda items raised under public comment at this meeting. Testimony on agenda items will be

heard when the item is called. (See "Issues to remember when addressing the Board" at the end of this agenda).

III. Unfinished business - None

IV. New business A. Board provide a recommendation to the Administrator for adoption of construction

standards for small homes

B. Board provide a recommendation to the Administrator for an amendment to the low-rise

residential plumbing provisions of 2017 Oregon Plumbing Specialty Code regarding barrier

type floor drain trap seal protection devices

V. Announcements - None

VI. Adjournment

http://www.oregon.gov/

Issues to remember when addressing the board:

All public participation is subject to the discretion of the board chair for order of testimony, length and

relevance.

Speakers are generally limited to five minutes.

Please register on the attendance registration form and on the public testimony registration form, listing

the appropriate agenda item.

The board chair will call you to the front testimony table.

Please state your name and the organization you represent (if any).

Always address your comments through the chair.

If written material is included, please provide 20 three-hole-punched copies of all information to the

boards administrator prior to the start of the meeting and, when possible, staff respectfully requests an

electronic copy of materials 24 hours prior to the meeting.

Interpreter services or auxiliary aids for persons with disabilities are available upon advance request. Persons

making presentations including the use of video, DVD, PowerPoint, or overhead projection equipment are asked to

contact boards coordinator 24 hours prior to the meeting. For assistance, please contact Debi Barnes-Woods at 503-

378-6787.

Please do not park vehicles with "E" plates in "customer only" spaces.

Note: For information regarding re-appointments or board vacancies, please visit the Governor’s website.

mailto:[email protected]

mailto:[email protected]

http://www.oregon.gov/gov/admin/Pages/How_To_Apply.aspx

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Residential and Manufactured Structures Board

Draft meeting minutes

October 4, 2017

RMSB members present: Jan Lewis, chair, residential structural contractor

Bruce Dobbs, vice-chair, utility/energy supplier

Gordon Anslow, home designer

John Chmelir, multi-family contractor

Tonya Halog, structural engineer

Emily Kemper, public member

Douglas Lethin, remodeler residential structural contractor

RMSB members absent: John Mills, residential building trade sub-contractor

Rebai Tamerhoulet, building official

Vacant, manufacturer of manufactured dwellings

Vacant, seller or distributor of new manufactured dwellings

Staff present: Mark Long, Administrator of Building Codes Division

Katharine Lozano, Senior Assistant Attorney General

Shane Sumption, interim manager, Policy and Technical Services

Rex Turner, structural program chief, Policy and Technical

Services

Richard Rogers, chief building official, Policy and Technical

Services

Tony Rocco, senior building code specialist, Policy and Technical

Services

Mark Heizer, P.E., energy and mechanical code specialist, Policy

and Technical Services

Jeremy Williams, P.E., structural program engineer, Policy and

Technical Services

Alana Cox, senior policy advisor, Policy and Technical Services

Brett Salmon, senior policy analyst, Administration Services

Tyler Larson, policy analyst, Policy and Technical Services

Richard Baumann, policy analyst, Policy and Technical Services

Holly Tucker, managers assistant, Policy and Technical Services

Katelyn Leasia, BCD inspector training program

Debi Barnes-Woods, boards administrator/coordinator, Policy and

Technical Services

Guests present: Jessica Carpenter, Oregon Manufactured Housing Association

Forrest Barnes, Oregon Manufactured Housing Association

Jan Nordlund, Oregon Legislative Policy and Research

State of Oregon

Draft

Agenda

Item

I.D

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James Bela, Oregon Earthquake Awareness

I. Board business

A. Call to order

Chair Jan Lewis called the Residential and Manufactured Structures Board

meeting to order at 9:34 a.m. The meeting was held at the Building Codes

Division in Conference Room A, 1535 Edgewater Street NW, Salem, Oregon.

B. Roll call

John Mills and Rebai Tamerhoulet were both excused. John Chmelir was

connected by teleconference.

This board has two vacancies: Manufacturer of manufactured dwellings, and

seller or distributor of new manufactured dwellings.

C. Approval of agenda and order of business Chair Lewis RULED the board meeting agenda and order of business approved.

D. Approval of the board meeting minutes of July 12, 2017.

Chair Lewis RULED the draft meeting minutes of July 12, 2017, final.

E. Date of the next regularly scheduled meeting: January 10, 2018.

II. Public comment - None

III. Reports Residential program update

Rex Turner, structural program chief, Policy and Technical Services, discussed

several important topics:

2017 Oregon Residential Specialty Code (ORSC) established a three-month

grace period allowing designers, contractors and owners to use either the 2014

ORSC or the newly adopted 2017 ORSC for the months of October,

November, and December of 2017. The newly adopted code will be available

as “read only” online at:

http://www.oregon.gov/bcd/codes-stand/Pages/adopted-codes.aspx

The Oregon Building Codes Division (BCD) will begin offering required code

change training classes for inspectors only in October related to the adoption

of the 2017 Oregon Electrical, Plumbing, and Residential Specialty codes.

Online registration is available at:

http://www.oregon.gov/bcd/inspector-training/Pages/register-pay-fees.aspx

http://www.oregon.gov/bcd/codes-stand/Pages/adopted-codes.aspx

http://www.oregon.gov/bcd/inspector-training/Pages/register-pay-fees.aspx

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Brett Salmon, senior policy analyst, BCD, distributed the 2017 Oregon

Transitional Housing Standard. He said rules were filed and effective September

29, 2017. Mr. Salmon explained that the standard is completely voluntary;

jurisdictions do not have to choose the standard, which is not part of the State

Building Code. He said that the standard may be used as a model transitional

housing template in communities, which some or all of the provisions may be

increased or decreased to meet local needs.

Mark Long, Administrator, BCD, and Katharine Lozano, Senior Assistant

Attorney General, were both at the testimony table. Administrator Long explained

what had occurred at the national level with House Bill 2737 and the legislative

requirements of this bill to adopt construction standards by January 1, 2018.

IV. Communications - None

V. Appeals - None

VI. Unfinished business – None

VII. New business

Board provides direction on the adoption process of construction standards

for small homes as required under House Bill 2737 (2017)

Tyler Larson, policy analyst, Policy and Technical Services, said that House Bill

2737 was enacted during the 2017 legislative session. The bill requires the

division to adopt construction standards for homes not more than 600 square feet

in size for inclusion in the state building code.

The statute requires code provision to become effective no later than January 1,

2018. The division is asking the board to provide direction appointing a

committee and all particulars related to committee work. Because the board had

already appointed a committee to review the adoption process of the 2017 Oregon

Residential Specialty Code, the board chair wanted the same membership if

possible, but to add a tiny home representative.

The board agreed that committee membership will consist of 2 builders; 1

engineer; 1 representative from energy; 1 building official; 1 fire marshal; and 1

representative from the tiny home industry.

The board provided direction on the following items:

Committee chair – Justin Wood, Residential Contractor

Additional committee membership will include:

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Matthew Fitchett, residential contractor

Tonya Halog, structural engineer

Blake Shelide, Oregon Department of Energy

Matt Rozzell, building official

David Mills, Oregon Deputy State Fire Marshal

Andrew Morrison, tiny house representative

The selection of the model code will be the 2015 IRC with the 2018 tiny

home appendix

The board suggested a two-week public process for receiving code

proposals starting as soon as the division posts the notice

Mr. Larson explained that the timeline process for completing the legislative directive

is limited. The committee work would need to be completed by the middle of

November allowing for two or three meetings. The committee recommendations

would go to the board for its recommendations to the division on the adoption of

rules. In order for the division to comply with the legislative directive, the board

would need to meet no later than November or early December of 2017.

Board members decided that the committee members should choose dates and times

of meetings to prevent scheduling conflicts.

Out of several tentatively scheduled board meeting dates to review the committee

recommendations, the board chose Wednesday, December 6, 2017, from 1:30 p.m. to

3:00 p.m.

Motion by Emily Kemper to approve committee membership and chair, the

selection of the 2015 IRC with the 2018 tiny home appendix as the model code,

directing the division to post the opening of the submission of public code change

proposals lasting for a two-week period and committee recommendations to the board

Wednesday, December 6, 2017, for the board to make its recommendation to the

Administrator for the adoption of rules.

Motion carried unanimously.

VIII. Announcements

IX. Adjournment Chair Lewis adjourned the Residential and Manufactured Structures Board at

10:35 am.

Respectfully submitted by Debi Barnes-Woods Boards

Administrator/Coordinator.

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State of Oregon Board memo Building Codes Division November 30, 2017 To: Residential and Manufactured Structures Board From: Shane Sumption, manager, Policy and Technical Services Subject: House Bill 2737 (2017) code provisions Background: HB 2737 was enacted during the 2017 legislative session. The bill requires the division to adopt construction standards for small homes. The standards must include, but are not limited to, standards that: (a) Allow sleeping lofts; and (b) Allow the use of ladders or alternate tread devices as the primary means of egress from a sleeping loft. The statute requires code provisions to become effective no later than January 1, 2018. At its October 4, 2017, meeting, the board selected a code committee and chair, model code, and timeframe for code proposals. The division explained at that time that the bill does not waive the board’s responsibility to ensure that amendments to the code are safe and technically and economically feasible. The division also explained that the bill did not limit the ability of the board to address items other than lofts and ladders. During the legislative session, proponents of HB 2737 emphasized the importance of small homes to address the affordable housing crisis in Oregon. In order to meet the mandate of the bill, maintain our commitment to safe and technically and economically feasible code provisions, and meet the intent of the bill to address affordable housing, the division has identified the following items that must be addressed for any new code provisions to be adopted:

- Sleeping lofts and ladders - Egress - Fire prevention - Smoke accumulation - Fire resistive construction - Proximity to other structures (setback) - Scope/applicability - Affordability

Agenda Item IV.A.

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The division requested public comment related to the implementation of HB 2737 and several proposals were received addressing many of the items above. The code committee met twice to review proposals and develop a recommendation to the board. A matrix describing code proposals and recommendations of the code committee is attached. The code committee also addressed several of the items in the list above. Being under a compressed timeline, the code committee also recommended that the board explore the possibility of addressing affordable housing in the code, and asked the board to consider the appropriate scope or applicability of the code provisions. The division has developed a proposal that incorporates several code proposals and recommendations from the code committee, and addresses all of the items in the list above. The proposal meets the mandate of the bill to allow sleeping lofts and ladders in small structures, and also creates a path to build safe, affordable workforce housing up to 1500 square feet. Once a workforce housing code is in place, the division intends to work with stakeholders to address cost drivers outside the code that impact the cost of housing, including system development charges, other local regulatory costs, and permitting and inspection. The division is seeking the board’s guidance with the attached code language and intends to continue working with the board on the ongoing issues of housing costs. We do not believe our work is limited to a specific size or set of issues, but we are using the bill and the required reporting to flag theses issues for the legislature, the board, and industry. The division intends to use this workforce housing code as a starting place for a broader conversation to address affordability. Options: Approve the proposed workforce housing code language and forward to the

Administrator for rulemaking and subsequent adoption, with the finding that the added cost, if any, is necessary to the health and safety of the occupants or the public or necessary to conserve scarce resources.

Amend and approve the proposed workforce housing code language and forward to the Administrator for rulemaking and subsequent adoption, with the finding that the added cost, if any, is necessary to the health and safety of the occupants or the public or necessary to conserve scarce resources.

HB 2737 Small Homes Code Review Committee Recommendation Matrix

1

Proponent Subject and summary Recommendation HB 2737-01 Tom

Bowerman, Square One

Villages

1. Adopt the 2018 IRC Tiny House appendix, 2. require only one weather proof exterior 110 V outlet and one

exterior hose bib, 3. allow the kitchen sink to satisfy as the bathroom sink, and on

houses under 600 sq ft with not more than two sleeping lofts, 4. floors not higher than 9 feet above exterior grade, to permit a

net clear opening not less than 516 sq. inches.

Reject proposal

HB 2737-02 Eric Schmidt OBOA/OMFA

Adopt 2018 IRC Appendix Q for Tiny Houses as the base code Approve proposal

HB 2737-03 Matt Rozzell OBOA/OMFA

Add a user note with the following language: This code language is based on Appendix Q of the 2018 IRC model code. Oregon code officials requested testing for tiny homes to determine how these structures perform in a fire. Due to the constricted timeframe of HB 2737, testing was not completed. To provide a reasonable level of safety, the appendix is intended to be used for dwelling purposes only. Adult foster homes, daycare facilities, and home businesses are not the intended use of these occupancies. Modification: Remove “home businesses”

Approve proposal as modified


Add an occupancy classification for tiny houses. Approve proposal

HB 2737-05 Eric Schmidt OBOA/OFMA

Amend the definition of a tiny house to include the loft area as part of the minimum floor area requirement.

Approve proposal

Comm-01 Amend the definition of a loft to include a reference to correlate as it is defined in the lofts section.

New provision


Prohibit the location of lofts directly above a kitchen. Modification: Prohibit the location of cooking appliances within 6 inches of the edge of a loft.

Approve proposal with modification


Limit the number of lofts to only one. Modification: Prohibit the stacking of lofts instead of the number of lofts.


Comm-02 Require a minimum of 3 feet from the loft floor to the loft ceiling and the headroom of a landing platform to be at least 4 feet 4 inches.

New provision


Ladder supporting load shall be 300-pounds, and a maximum height of a ladder shall be 8 feet with an exception for those ladders with cages. Committee modification: Prohibit the use of ladders for lofts higher than 8 feet and have no exceptions for ladders with cages.


HB 2737-09 Schuyler Smith,

Polyphon Architecture

Add an exception to ORSC Section R311.4 for stairs and ladders used for access to areas of 200 square feet or less, not containing the primary bathroom or kitchen.

Reject proposal

Comm-03 Match the IRC language for 200-pound load requirement and refer to ORSC Table R301.5.

New provision

http://www.oregon.gov/bcd/committees/Documents/proposal-hb2737-01.pdf









HB 2737 Small Homes Code Review Committee Recommendation Matrix

2

Proponent Subject and summary Recommendation HB 2737-10 Frankie

Lewington, Metro/Build

Small Coalition

Eliminate the requirement for a sink to be put in bathrooms for homes under 600 sq. ft. as long as a kitchen sink is present in the home.

Reject proposal


Add a section for fire safety. (See proposal) (Flame spread material, automatic fire sprinklers, etc.)

Approve proposal


Require a minimum 10 feet setback from other dwellings. Reject Proposal


Require automatic sprinkler systems installed and designed in accordance with NFPA 13D Modification: Require sprinklers only in dwellings with lofts/ladders and to install them in accordance with NFPA 13D with an allowance to use a “single head” hydraulic calculation.

Approve proposal with modifications

HB 2737-14 Frankie Lewington, Metro/Build

Small Coalition

Require homes 600 sq. ft. or smaller to adhere to the energy code requirements of section N1101.3.2 (small additions). Additionally, homes 200 sq. ft. or less adhere to the exception under section N1101.3.2. Modification: Replace prescriptive code in N1101.1(1) with the following for homes not larger than 600 square feet:

• R-15 walls • R-30 roof • R-25 floor • U-0.30 windows • U-0.20 doors (opaque) • U-0.50 skylights


HB 2737-15 Kol Peterson Accessory Dwelling Strategies

Reduce the insulation requirements for small homes to R15, especially in the ceiling.

Reject proposal

Final Recommendation

The committee made a final motion and recommendation that the board approve the discussed amendments and modifications to the appendix, as well as take a look at expanding the provisions for affordable housing options, expanding the scope to include homes larger than 600 square feet, addressing the confusion on moveable homes, and ensuring that the provisions are not intended for use in adult foster homes or daycare facilities.







2017 OREGON RESIDENTIAL SPECIALTY CODE Q-1

APPENDIX Q

WORKFORCE HOUSING SECTION AQ101

GENERAL AQ101.1 General. The provisions of this appendix shall control the design and construction of detached workforce housing units.

AQ101.2 Scope. The provisions of this appendix apply to detached workforce housing units as defined in Section AQ102. Workforce housing units may not be used for any purpose other than as a detached one-family dwelling.

AQ101.3 Applicability. The provisions of this appendix shall take precedence over similar requirements located elsewhere in this code. Where this appendix does not provide a specific requirement or allowance, the provisions of this code shall govern. Workforce housing units shall comply with this code except as otherwise stated in this appendix.

AQ101.4 Additions. This appendix does not apply to additions. Workforce housing units that undergo an addition shall no longer be classified as a workforce housing unit and may be subject to all provisions of this code. Any addition made to a workforce housing unit shall be structurally independent, self-supported and may only be connected to the existing structure by flashing and roof covering materials.

AQ101.5 Occupancy classification. Workforce housing units shall be classified as Group R-3.1. This occupancy designation shall be included on the required certificate of occupancy, as outlined in Section R110, and shall be clearly indicated on applications for permit and all construction documents.

SECTION AQ102 DEFINITIONS

AQ102.1 General. The following words and terms shall, for the purposes of this appendix, have the meanings shown herein. Refer to Chapter 2 of this code for general definitions.

WORKFORCE HOUSING UNIT. A detached one-family dwelling unit of conventional light-frame construction that meets all of the following:

1. A minimum of 400 square feet (37.16 m2) and a maximum of 1,500 square feet (139.35 m2), inclusive of loft space meeting AQ106, and exclusive of garages.

2. A maximum of two stories. 3. Contains three or fewer sleeping rooms or areas, and a

maximum of two full bathrooms. 4. Includes a maximum of one loft that complies with

AQ106. 5. Constructed in accordance with all applicable provisions

of this appendix.

EGRESS ROOF ACCESS WINDOW. A skylight or roof window designed and installed to satisfy the emergency escape and rescue opening requirements of Section R310.

LANDING PLATFORM. A landing measuring a minimum of two treads deep and a maximum of two risers tall, provided as the top step of a stairway accessing a loft.

LOFT. Any floor level located above the main floor and open to the main floor on at least one side, with a ceiling height less than 6 feet 6 inches (1981 mm), complying with the area, access, and guard requirements of AQ106, and used as a living or sleeping space.

SECTION AQ103 LIVE LOADS

AQ103.1 Design loading. Workforce housing units shall be designed in accordance with the live loads specified in R301.5 of this code, as modified by Table AQ103(1).

TABLE AQ103(1) WORKFORCE HOUSING – REDUCED LIVE LOADS

Design Element Required Performance

Attic live load 5 psf

Floor live load (including lofts) 30 psf

SECTION AQ104 FIRE-RESISTANT CONSTRUCTION

AQ104.1 Exterior walls. Construction, projections, openings and penetrations of exterior walls of workforce housing units shall comply with Table AQ104.

Exceptions: 1. Walls, projections, openings or penetrations in walls

perpendicular to the line used to determine the fire separation distance.

2. Detached garages accessory to a workforce housing unit located within 2 feet (610 mm) of a lot line are permitted to have roof eave projections not exceeding 4 inches (102 mm).

3. Foundation vents installed in compliance with this code are permitted.

AQ104.2 Interior wall and ceiling finishes. Interior finishes of all workforce housing unit walls and ceilings shall comply with one of the following:

1. Minimum ½ inch gypsum board or other approved Class A finishes where the workforce housing unit is not equipped throughout with an automatic sprinkler system in accordance with Appendix T or NFPA 13D.

2. Class B finishes or other approved materials with a flame spread index of less than 75 and a smoke development index of less than 450 where the workforce housing unit

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is equipped throughout with an automatic sprinkler system in accordance with Appendix T or NFPA 13D.

SECTION AQ105 MINIMUM HEIGHTS AND AREAS

AQ105.1 Minimum ceiling height. Habitable space and hallways in workforce housing units shall have a ceiling height not less than 6 feet 6 inches (1981 mm). Bathrooms, toilet rooms, and kitchens

shall have a ceiling height not less than 6 feet 4 inches (1930 mm). No obstructions shall project below these minimum ceiling heights.

Exception: Ceiling heights in lofts are permitted to be less than 6 feet 6 inches (1981 mm), in accordance with Section AQ106.1.4.

AQ105.2 Minimum room area. Habitable rooms other than lofts shall have a floor area of not less than 60 square feet (5.57 m2). These habitable rooms shall not be less than 6 feet (1829 mm) in any horizontal dimension.

TABLE AQ104 WORKFORCE HOUSING UNIT – EXTERIOR WALLS AND PROJECTIONS

EXTERIOR WALL ELEMENT FIRE-RESISTANCE RATING AND SAFEGUARDS REQUIRED

FIRE SEPARATION DISTANCE

Walls

(Fire-resistance rated, interior automatic sprinklers and exterior sidewall pendant

automatic sprinklers)

2 hour-tested in accordance with ASTM E 119 or UL 263 with exposure from both sides, and;

Automatic sprinkler system provided throughout in accordance with Appendix T or NFPA 13D, including dry sidewall pendant sprinklers on the exterior, spaced to ensure that the entire surface of the exterior

wall is covered.

< 3 feet

(Fire-resistance rated and interior automatic sprinklers)

1 hour-tested in accordance with ASTM E 119 or UL 263 with exposure from both sides, and;

Automatic sprinkler system provided throughout in accordance with Appendix T or NFPA 13D

≥ 3 < 5 feet

(Not fire-resistance rated) 0 hours ≥ 5 feet

Projections Not allowed N/A ˂ 2 feet

(Fire-resistance rated) 1 hour on the underside ≥ 2 feet < 5 feet (Not fire-resistance rated) 0 hours ≥ 5 feet

Openings in walls Not allowed N/A < 3 feet

15% maximum of wall area 0 hours ≥ 3 feet < 5 feet Unlimited 0 hours ≥ 5 feet

Penetrations All Comply with Section R302.4 < 5 feet

None required ≥ 5 Feet

SECTION AQ106 LOFTS

AQ106.1 Minimum loft areas. Lofts used as a sleeping or living space shall meet the minimum area and dimension requirements of Sections AQ106.1.1 through AQ106.1.4.

AQ106.1.1 Minimum area. Lofts shall have a floor area of not less than 35 square feet (3.25 m2).

AQ106.1.2 Minimum dimensions. Lofts shall be not less than 5 feet (1524 mm) in any horizontal dimension.

AQ106.1.3 Height effect on loft area. Portions of a loft with a sloping ceiling measuring less than 3 feet (914 mm) from the finished floor to the finished ceiling shall not be considered as contributing to the minimum required area for the loft.

Exception: Under gable roofs with a minimum slope of 6:12, portions of a loft with a sloping ceiling measuring less than 16 inches (406 mm) from the finished floor to the finished ceiling shall not be considered as contributing to the minimum required area for the loft.

AQ106.1.4 Minimum ceiling height. Lofts shall have a ceiling height of not less than 3 feet (914.4 mm).

AQ106.1.4.1 Undersized lofts. Lofts having a ceiling height of less than 6 feet (1828.8 mm) for more than 50 percent of the required minimum area shall comply with both of the following:

1. All interior finishes of the workforce housing unit walls and ceilings shall be a minimum ½” gypsum board or other approved Class A finish.

2. In addition to the smoke alarm required by AQ106.5, all other required smoke alarms within the workforce housing unit shall be a photoelectric-type complying with Section R314.

AQ106.2 Automatic fire sprinkler systems. Workforce housing units that include a loft shall be equipped throughout with an automatic sprinkler system in accordance with Appendix T or NFPA 13D.

AQ106.3 Loft access. The access to and primary egress from lofts shall be of any type described in Sections AQ106.3.1 through AQ106.3.4.

AQ106.3.1 Stairways. Stairways accessing lofts shall comply with this code or with Sections AQ106.3.1.1 through AQ106.3.1.5.

AQ106.3.1.1 Width. Stairways serving a loft shall not be less than 17 inches (432 mm) in clear width at all points at

2017 OREGON RESIDENTIAL SPECIALTY CODE Q-3

or above the permitted handrail height. The minimum width below the handrail shall not be less than 20 inches (508 mm).

AQ106.3.1.2 Headroom. The headroom in stairways serving a loft shall not be less than 6 feet 2 inches (1880 mm) measured vertically from the sloped line connecting the tread nosings in the middle of the tread width.

Exception: The headroom for landing platforms shall not be less than 4 feet 4 inches (1321 mm).

AQ106.3.1.3 Treads and Risers. Risers for stairs serving a loft shall be a minimum of 7 inches (178 mm) and a maximum of 12 inches (305 mm). Tread depth and riser height shall be calculated with the following formulas:

Tread depth = 20 inches (508 mm) minus 4/3 riser height

OR

Riser height = 15 inches (381 mm) minus ¾ tread depth

Exception: Landing platforms shall measure a minimum of two treads in depth and a maximum of two risers in height.

AQ106.3.1.4 Handrails. Handrails shall comply with Section R311.

AQ106.3.1.5 Stairway guards. Guards at open sides of stairways shall comply with Section R312.

AQ106.3.2 Ladders. Ladders serving lofts shall comply with Sections AQ106.3.2.1 and AQ106.3.2.2.

AQ106.3.2.1 Size and capacity. Ladders serving lofts shall have 12 inches (305 mm) minimum rung width and 10 inch (254 mm) to 14 inch (356 mm) spacing between rungs. Ladders shall be capable of supporting a 300 pound (136 kg) load on any rung. Rung spacing shall be uniform within 3/8-inch (9.5 mm). The maximum height of a ladder shall be 8 feet (2438 mm).

AQ106.3.2.2 Incline. Ladders shall be installed at a minimum 70 to a maximum 80 degrees from horizontal.

AQ106.3.3 Alternating tread devices. Alternating tread devices serving lofts shall comply with Section R311. The clear width at and below the handrails shall be not less than 20 inches (508 mm).

AQ106.3.4 Ships ladders. Ships ladders serving lofts shall comply with Section R311. The clear width at and below the handrails shall be not less than 20 inches (508 mm).

AQ106.4 Loft guards. Loft guards shall be located along the open side(s) of lofts located more than 30 inches (762 mm) above the main floor. Loft guards shall be not less than 36 inches (914 mm) in height, and are not required at the loft accessing means connection to the loft.

AQ106.5 Loft smoke alarms. Every loft shall be equipped with a minimum of one photoelectric-type smoke alarm complying with Section R314.

AQ106.6 Loft location. Lofts shall not be located directly above a permanently installed cooking appliance. Permanently

installed cooking appliances shall not be located within 12 inches (304.8 mm) horizontally of a loft open edge, measured to the vertical plane of the loft edge.

AQ106.7 Maximum loft size. The aggregate floor area of a loft shall not be greater than one-third of the floor area of the room or space in which they are located.

SECTION AQ107 EMERGENCY ESCAPE AND RESCUE OPENINGS

AQ107.1 General. Workforce housing units shall meet the requirements of Section R310 for emergency escape and rescue openings.

Exception: Egress roof access windows in lofts used as sleeping rooms shall be deemed to meet the requirements of Section R310 where installed with the bottom of their clear opening no more than 44 inches (1118 mm) above the loft floor, provided the egress roof access window complies with the minimum opening area requirements of Section R310.2.1.

SECTION AQ108 WALL CONSTRUCTION AND BRACING

AQ108.1 General. Exterior walls of workforce housing units shall be constructed and braced in accordance with this section.

AQ108.2 Maximum wall height. Exterior wall bearing studs shall be a minimum of 2 x 4, shall be limited to a maximum height of 10 feet, and shall otherwise comply with R602.3.1.

AQ108.3 Perimeter aspect ratio. Workforce housing units shall be designed such that the ratio between the longest exterior wall and the shortest exterior wall does not exceed 3:1.

AQ108.4 Minimum bracing. Workforce housing units designed in accordance with the following bracing requirements shall not be required to meet R602.10.

AQ108.4.1 Bracing percentage. Each exterior wall shall have a minimum 30 percent of the wall length provided in full-height braced wall panels. Interior walls are not required to be braced where AQ108 is used for the workforce housing unit bracing design.

AQ108.4.2 Braced panel spacing. Braced wall panel spacing shall be a maximum of 20 feet (6096 mm) between full-height panels.

AQ108.4.3 Corner returns. A minimum 32-inch full-height braced wall panel shall be provided at each end of every exterior wall.

AQ108.4.4 Portal frames, alternate braced walls and cripple walls. Portal frames and alternate braced wall panels complying with R602.10 are not permitted in workforce housing unit design. Cripple walls shall be limited to a maximum height of 48 inches (1219 mm).

AQ108.4.5 Minimum materials. Braced wall panels specified in this section shall be of one of the following materials:

1. 3/8” exterior grade plywood

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2. 7/16” exterior grade OSB 3. Other approved equivalent

AQ108.4.6 Braced wall panel edges and fastening. All braced wall panel edges shall be blocked or shall be supported by a framing member. Braced wall panels shall be fastened with 8d Common nails at 6” on center for all edges and 12” on center for field locations.

SECTION AQ109 EXTERIOR ENVELOPE

AQ109.1 General. Workforce housing units shall be designed in accordance with one of the exterior envelope paths listed in Table AQ109. All required performance levels of each individual path shall be followed once a path is selected. AQ109.2 Additional measures. Workforce housing units are exempt from providing additional energy measures required by Section N1101.1.

TABLE AQ109 WORKFORCE HOUSING UNIT – EXTERIOR ENVELOPE

Building Component Path 1 Performance

Path 2 Performance

Walls R-15 R-21

Flat Ceilings R-30 R-25

Vaulted (rafter) or Advanced Framed Ceilings R-25 R-21

Scissor Truss Ceilings R-30 R-25

Underfloor R-25 R-19

Windows U-0.30 U-0.35

Exterior Doors R-5 / U-0.20 R-5 / U-0.20

Skylights U-0.50 U-0.50

SECTION AQ110 MECHANICAL SYSTEMS

AQ110.1 Thermostat control. Workforce housing units shall have temperature zoning in accordance Chapter 11. In addition, the thermostat, or an alternative means such as a switch or clock, shall provide an automatic or readily accessible manual capability for reducing the energy required for heating and cooling during periods of nonuse or reduced need within the primary living space. AQ110.2 Range hoods. Workforce housing units are exempt from the range hood requirements of Section M1503 where either of the following features are provided:

1. An operable window with a minimum net clear opening of 3 square feet (0.279 m2) is located within 72 inches (1828 mm) horizontally of the cooking appliance.

2. A continuously operated bathroom fan with an exhaust rate of not less than 50 cubic feet per minute (0.0236 m3/s).

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HB 2737 Amendments DRAFT 11/30/17

918-480-0010 Amendments to the Oregon Residential Specialty Code

(1) The Oregon Residential Specialty Code is amended pursuant to OAR chapter 918, division 8. Amendments adopted during the code-cycle for inclusion into the Oregon Residential Specialty Code are placed in this rule, showing the section reference and a descriptive caption.

(2) Effective January 1, 2018, the Oregon Residential Specialty Code is amended to adopt Appendix Q – Workforce Housing. [Publications: Publications referenced are available for review at the division. See division website for information on where to purchase publications.] Stat. Auth.: ORS 455.020, 455.110, & 455.610 Stats. Implemented: ORS 455.610 Hist.: BCA 18-1993, f. 8-24-93, cert. ef. 8-29-93; BCA 28-1993, f. 10-22-93, cert. ef. 1-1-94; BCA 29-1993, f. 11-24-93, cert. ef. 12-1-93; BCD 6-1995, f. 3-31-95, cert. ef. 4-1-95; BCD 3-1996, f. 2-2-96, cert. ef. 4-1-96; BCD 22-1996(Temp), f. 10-1-96, cert. ef. 10-4-96; BCD 5-1997, f. 3-21-97, cert. ef. 4-1-97; Administrative Reformatting 1-19-98; BCD 3-1998, f. 1-29-98, cert. ef. 4-1-98; BCD 19-1998, f. 9-30-98, cert. ef. 10-1-98; BCD 3-2000, f. 1-14-00 cert. ef. 4-1-00; BCD 19-2000(Temp), f.& cert. ef. 8-15-00 thru 2-10-01; BCD 32-2000, f. 12-27-00, cert. ef. 1-1-01; BCD 3-2001, f. 2-9-01, cert. ef. 3-1-01; BCD 2-2002, f. 3-5-02, cert. ef. 4-1-02; BCD 22-2002(Temp), f. 9-13-02 cert. ef. 10-1-02 thru 3-29-03; BCD 30-2002, f. 12-6-02, cert. ef. 1-1-03; BCD 1-2003(Temp), f. & cert. ef. 1-10-03 thru 3-31-03; BCD 33-2002, f. 12-20-02 cert. ef. 4-1-03; BCD 15-2004, f. 9-10-04, cert. ef. 10-1-04; BCD 5-2005, f. & cert. ef. 3-28-05; BCD 9-2006, f. 6-30-06, cert. ef. 7-1-06; BCD 1-2007, f. 2-15-07, cert. ef. 4-1-07; BCD 5-2008, f. 2-22-08, cert. ef. 4-1-08; BCD 13-2008(Temp), f. & cert. ef. 7-3-08 thru 12-30-08; BCD 21-2008, f. 9-30-08, cert. ef. 10-1-08; BCD 24-2008(Temp), f. & cert. ef. 10-6-08 thru 4-1-09; BCD 1-2009, f. 1-30-09, cert. ef. 2-1-09; BCD 8-2009, f. 9-30-09, cert. ef. 10-1-09; BCD 5-2010, f. 5-14-10, cert. ef. 7-1-10; BCD 19-2010, f. 12-30-10, cert. ef. 1-1-11; BCD 1-2011, f. & cert. ef. 2-15-11; BCD 11-2011(Temp), f. & cert. ef. 4-15-11 thru 9-30-11; BCD 13-2011, f. 5-13-11, cert. ef. 7-1-11; BCD 9-2014, f. 9-25-14, cert. ef. 10-1-14; BCD 3-2015, f. 3-24-15, cert. ef. 4-1-15; BCD 2-2016, f. 1-28-16, cert. ef. 2-1-16; BCD 11-2017, f. 9-14-17, cert. ef. 10-1-17

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State of Oregon Board memo Building Codes Division November 30, 2017 To: Residential and Manufactured Structures Board From: Richard Baumann, policy analyst, Policy and Technical Services Subject: Code amendment regarding barrier type floor drain trap seal protection devices Action requested: Residential and Manufactured Structures Board review and approve low-rise residential plumbing code amendment to the 2017 Oregon Plumbing Specialty Code (OPSC) regarding use of barrier type floor drain trap seal protection devices. Background: Plumbing traps are intended to provide and maintain a physical barrier between a building and its drainage system and prevent the emission of sewer gasses in a structure. Some floor drains do not routinely receive drainage to maintain a water seal. This device would not be required because the existing plumbing code contains requirements for maintaining a physical barrier. This device, if used, would provide additional protection. The State Plumbing Board, at its October 2017 meeting, approved a code amendment allowing the use of barrier type floor drain trap seal protection devices. That approval included specific limitations that were specified in the devices listing certificate. The State Plumbing Board recommended that the Residential and Manufactured Structures Board approve this amendment because this device may be used in residential applications. Discussion: Based on the requirements established in ORS 455.030 and 455.610 the board must take an action regarding code amendments to the Oregon Residential Specialty Code. Additionally, low-rise residential plumbing provisions must be compatible with the OPSC. Options: Recommend approving the proposed code language, and forward to the Administrator for

rulemaking and subsequent adoption, with the finding that the added cost, if any, is necessary to the health and safety of the occupants or the public or necessary to conserve scarce resources.

Agenda Item IV.B.

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Amend and approve the proposed code language, and forward to the Administrator for rulemaking and subsequent adoption, with the finding that the added cost, if any, is necessary to the health and safety of the occupants or the public or necessary to conserve scarce resources.

Recommend denying this request, which would retain current trap seal protection requirements of the 2017 OPSC. Specify reason for denying request.

Residential and Manufactured Structures Board 2017 Oregon Plumbing Specialty Code

November 30, 2017

Proposed code amendments to the Oregon Plumbing Specialty Code Text donation: bold/underline denotes new text strikethrough denotes deleted text

Barrier Type Floor Drain Trap Seal Protection Devices

1007.0 Trap Seal Protection. 1007.1 General. Floor drain or similar traps directly connected to the drainage system shall be provided with an approved automatic means of maintaining their water seals. 1007.2 Each non-pressure-activated primer valve, similar operated device, or toilet flush primer connection shall serve no more than two traps, unless a specific non-pressure activated primer valve, similarly operated device, or toilet flush primer is approved for a limited number of traps by the Building Official. Pressure-activated primer valves shall be limited to the number of traps to be served as approved by the Building Official for that specific valve. 1007.3 Supply piping. Supply piping between the priming device connection and the trap shall be at least 3/8 inch (12 mm) I.D. The supply piping to priming devices shall be protected against a form of cross-connection and sized according to the primer device manufacturer's recommendation. 1007.4 Primer valve. Primer valve bodies shall be installed a minimum of 12 inches (305 mm) above the flood level rim of the fixture being served and in an accessible location. 1007.5 Primer headers. Primer headers for three or more traps shall be the "inverted manifold" type (or other approved method) having equal water flow to all outlets, with each outlet provided with a threaded removable plug or cap inspection fitting. Approved flush tanks shall be permitted as an alternate supply source for primer headers. 1007.6 Primer stop. When installed, a primer stop shall be an accessible screwdriver stop.

1007.7 Barrier type floor drain trap seal protection. Barrier type floor drain trap seal protection devices shall be in accordance with ASSE 1072. When installed, the device shall be installed according to the device manufacturer’s installation instructions, and the device shall not be used in lieu of the requirements in Section 1007.1.

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Typical Barrier Type Floor Drain Trap Seal Protection Devices

Building Codes Division - Oregon Codes Division 1535 Edgewater Street NW P.O. Box 14470 Salem, OR...

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