Ph. 0800 TRICLAD · PDF file Ph. 0800 TRICLAD 4 1. Application and Scope 1.1. Application...

www.triclad.co.nz Ph. 0800 TRICLAD 1


Contents

1. Application and Scope 1.1 Application

1.2 Scope

1.3 Detail

1.4 Specific Design

2. Components 2.1 Profiles

2.2 Flashings

2.3 Primer

3. Nail Requirements

4. Design 4.1 Compliance

4.2 Responsibility

4.3 Clearance

5. Framing 5.1 Framing Grade

5.2 Dimensions

5.3 Treatment

5.4 Construction

6. Wall Underlay 6.1 Flexible Wall Underlay

6.2 Rigid Wall Underlay

7. Cavity Battens

8. Vermin Proofing

9. Flashings

10. Triclad Laps 10.1 Horizontal Laps

10.2 Vertical Laps

11. Cut Ends

12. Sealants

13. Durability 13.1 50 Year Durability


13.2 15 Year Durability

14. Coatings

15. Maintenance

16. Handling and Storage

17. Drawing Directory


1. Application and Scope

1.1. Application

Triclad Weatherboards are made from 12 and 17mm BD CarterHoltHarvey Bandsawn plywood. They are LOSP treated

and pre-primed. Under NZS3604 Triclad weatherboard is classed as a lightweight cladding product.

Triclad Lapped Weatherboard

Triclad Lapped Weatherboard has a Bandsawn Finish and is available in thicknesses of 12mm and 17mm with four

different widths available- 145mm, 190mm, 230mm and a 295mm (which is only available in 17mm thickness) with all

coming in 4.8metre lengths.

Triclad Rusticated Weatherboard

Triclad Rusticated Weatherboard has a Bandsawn Finish and is available in a thickness of 12mm with two different widths

available- 190mm and 230mm with all coming in 4.8metre lengths.

Triclad Vertical Weatherboard

Triclad Vertical Weatherboard has a Bandsawn Finish and is available in a thickness of 12mm with a widths of 190mm and

comes in 4.8metre lengths.

Triclad Board and Batten

Triclad Board and Batten has a Bandsawn Finish and is available in a thickness of 12mm with the board at a width of

230mm and Batten with a width of 70mm, both come in 4.8metre lengths. We can upon request manufacture 1200mm x

2.4,2.7,3.0,3.6,4.2,4.8 and 5.4m Boards.

1.2. Scope This specification covers the use of Triclad Weather Boards that fall within the scope of NZS 3604. This specification

covers the use of Triclad Weatherboards in both direct fixed and cavity construction methods and is limited to the

materials, products and processes contained herein, for buildings within the scope of NZS 3604:

• Up to 3 storey’s with a height measured from lowest ground level adjacent to the building to the highest point of the

roof (except for chimneys, aerials and the like) of 10 m or less, and

• With floor plan area limited only by seismic and structural control joints, and

• External walls that are vertical, and roofs that are 60º or less above the horizontal. Where buildings are based on NZS

3604, but require specific engineering design input, the framing shall be of at least equivalent stiffness to the framing

provisions of NZS 3604.

1.3. Detail Triclad Weatherboards details are provided in the details section of this document. The CAD files are available on the

Triclad website at www.triclad.co.nz .

1.4. Specific Design For the use of Triclad Weatherboard outside the scope of this document, the Architect Designer or Engineer must

undertake specific design. For advice on designs outside the scope of this specification, ask Triclad on 0800 874 2523.


2. Components

2.1. Profiles

10

344

310

70

230

13

206

11

230

93

33

164

93

9

190

93

33

124

93

9

295

10

3268

311

17

295

230

10

3268

311

10

3203

311

190

10

3164

310

145

10

3119

310

93

33 163 9310

230

Triclad Lapped Weatherboards - 12mm & 17mm

Triclad Rustic Weatherboards - 12mm Triclad Board & Batten - 12mm

Triclad Vertical (shiplap) boards - 12mm


2.2. Treatment.

Triclad Weatherboards are treated with Vascol Azure. Vacsol® Azure Concentrate is a Light Organic Solvent Preservative

(LOSP) which must be diluted with white spirits to the correct working strength, in accordance with mixing instructions

given in Section 3. Vacsol® Azure, RTU (Ready to Use) is specifically formulated for the treatment of timber to AS

1604.1 H3 hazard level (external above ground) providing protection against fungal decay and attack from borer and

termites. Vacsol® Azure is suitable for AWPA UC3A applications in the USA (EPA Ref. No. 75101-1). Vacsol® Azure is

also approved for H3.1 applications in NZ (NZS3640:2004).

2.3. Primer

Triclad Weatherboard uses an Alkyd wood primer called ‘PPG 839 Enduraprime’. PPG 839 Enduraprime is a high quality

wood primer formulated as a timber mill factory applied primer and has been sold in this market for more than 20 years,

establishing and maintaining its proven performance.

3. Nail Fixing Requirements

Nail lengths are designed for a minimum penetration of 35mm into framing. If thickness of batten or cladding is varied

length shall be adjusted.

Description Profile Dimensions

(mm)

Nail Size Direct

Fix(mm)

Nail Size On 20mm

Cavity(mm)

Triclad Weatherboard 145 x 12 60mm x 2.8mm AG* 75mm x 3.15mm AG*







Triclad Rusticated Weatherboard 190 x 12 60mm x 2.8mm AG* 75mm x 3.15mm AG*

Triclad Rusticated Weatherboard 230 x 12 60mm x 2.8mm AG* 75mm x 3.15mm AG*

Triclad Board & Batten (Board) 230 x 12 60mm x 2.8mm AG* 75mm x 3.15mm AG*

Triclad Board & Batten (Batten) 70 x 12 60mm x 2.8mm AG* 75mm x 3.15mm AG*

Triclad Vertical Weatherboard 190 x 12 60mm x 2.8mm AG* 75mm x 3.15mm AG*

External Corner 50 x 50

Internal Corner 18 x 18

Rustic Plug 19 x 5

Scriber

Nail Fixing material for Triclad Weatherboards in accordance with Table 4.3 of NZS3604 are as follows.

a) Zone B- Galvanised Steel or Stainless Steel or Silicon Bronze. b) Zone C- Galvanised Steel or Stainless Steel or Silicon Bronze. c) Zone D- Stainless Steel or Silicon Bronze. Zone D includes all offshore islands, the area within 500m of the coastline of New

Zealand.


As per Section 4.2.4 of NZ3604 ‘Microclimate Considerations’. Significant acceleration of the corrosion rate of structural

fasteners and fixings beyond what could be expected from the geographical location can occur in the following

circumstances and require a Specified Engineered Design.

a) Industrial contamination and corrosive atmospheres

b) Contamination from agricultural chemicals or fertilizers; and

c) Geothermal hot spots. Hot spots are defined as being within 50m of a bore, mud pool, steam vent or other source.

4. Design

4.1. Compliance

Triclad weatherboards comply with NZBC.

4.2. Responsibility The specifier or other party responsible for the project must ensure that the information and details in this specification are

appropriate for the intended application and that additional detailing is performed for specific design or any areas that fall

outside the scope of this technical specification. For applications outside the scope of this literature and details which are

not provided herein, the architect, designer or engineer must undertake specific design and it should be ensured that the

intent of their design meets the requirements of the NZBC.

4.3. Clearance

Clearance at concrete slab level,

The base of the Triclad Weatherboard system in accordance ‘NZS3604’ and ‘Clause E2- External Moisture’ of the NZBC

shall:

• Finish a minimum of:

o 100 mm above a paved surface, or

o 175 mm above finished unpaved surface,

• Overlap the concrete slab by 50 mm, and

• Be offset horizontally by a minimum of 6 mm for Direct Fixed Triclad Weather board to prevent capillary action

Clearance for timber floor framing,

Suspended timber floors shall meet the requirements of NZS 3604. Clearances from paved and unpaved surfaces to the wall

framing shall be in accordance with NZS 3604 and ‘Clause E2- External Moisture’ of the NZBC. At ground floor level, the

base of the cladding system shall:

• Overlap the timber floor structure by 50 mm minimum, and

• For walls with direct fixed claddings,

• be offset horizontally from a concrete foundation wall by a minimum of 6 mm

• Have no direct connection between sub floor spaces and drained cavities

5. Framing

5.1. Framing Grade.

In accordance with ‘NZS 363’ ‘New Zealand Timber Grading rules, No.1 framing or MSG6 grade is the minimum

requirement to be used.

5.2. Dimensions.

A minimum stud size of 90 x 45mm is required.


5.3. Treatment. Minimum treatment to be H1.2. Refer to NZS3604 for further information on minimum treatment selection and

requirements.

5.4. Construction.

All timber framing must comply with NZS3604.

Cavity Construction Method

• With Studs at 600mm centers the nogs must be at 800mm centres maximum

• With Studs at 400mm centres the nogs must be at 1200mm centres maximum

• On internal corners double studs are required.

• On external corners additional packing may be needed

Direct Fix Construction Method • Studs to be at 600mm centres maximum

• Nogs to be at 800mm centres maximum

6. Wall Underlay

6.1. Flexible wall underlay

Shall be in accordance with Table 23 of ‘E2/AS1’, and shall:

• Be run horizontally,

• Have upper sheets lapped over lower sheets to ensure that direction of laps will allow water to be shed to outside of the

wall underlay,

• Be lapped not less than 75 mm at horizontal joints,

• Be lapped not less than 150 mm over studs at vertical joints, and

• Extend 35 mm below bottom plate or bearer,

• Be restrained from bulging into a drained cavity

6.2. Rigid wall underlay Rigid wall underlay in association with drained cavities (including direct fixed corrugated profiled metal), are required in

extra high wind zones. Refer to Table 3 and Table 23 of ‘E2AS1’. Rigid underlays are also required to external walls of

attached garages that are unlined. Refer ‘E2AS1’ Paragraphs 1.1.1 and 9.1.3.4 c). Rigid wall underlay’s shall be in

accordance with Table 23 of E2AS1, and shall:

• Be minimum 7 mm H3 plywood, or 6 mm fibre cement sheet

• Be installed with sheet edges fixed over solid framing

• Be over-fixed with a flexible wall underlay from Table 23 and installed as in Paragraph 9.1.7.1 of E2AS1

• Have flexible underlay folded into opening reveals as in E2AS1 Paragraph 9.1.5

• Have cavity battens at maximum 600 mm centres

• Be finish flushed with underside of bottom plate or bearer.

7. Cavity Battens. Cavity battens shall:

• Be fixed at 300mm centres

• Be nominal 20 mm (between limits of 18 mm and 25 mm in thickness),

• Be a minimum 45 mm wide,

• Be fixed, by the cladding fixings, through the wall underlay into the framing,

• If timber, comply with B2/AS1,


8. Vermon-Proofing. Vermin-proofing shall be provided above window and door heads and at the base of the drained cavity. Figure 66 of

‘E2AS1’ provides one example of an appropriate cavity closer. Aluminium, stainless steel or uPVC in accordance with

Paragraph 4.1 shall be used where vermin-proofing material is not readily accessible or replaceable.

Vermin-proofing shall:

• Provide holes or slots between 3 mm and 5 mm,

• Provide an area of opening of 1000 mm2 per lineal metre of wall, and

• Be positioned to allow a minimum drip edge to the wall cladding of:

o 10 mm at the base of walls, and

o 15 mm above window and door head flashings.

9. Flashings. Acceptable materials for flashing junctions and penetrations are described in Paragraph 10.3.

9.1. Selection of flashing materials Selection of flashing materials Flashing materials shall take into account the following factors:

• The requirements of NZBC Clause B2 Durability,

• The environment where the building is located,

• The specific conditions of use, and

• Consideration of the surrounding materials.

9.2. Environment Flashing materials shall be selected according to the relevant exposure conditions as defined in Table 20 of ‘E2AS1’to

minimise corrosion.

9.3. Acceptable Flashing Materials

Tables 20, 21 and 22 of ‘E2AS1’ shall be used to assess suitability of flashing materials for the required durability.

9.3.1. Galvanized steel flashings Galvanized steel flashings shall:

• have a BMT of 0.55 mm minimum

• be grade G550, or G300 for rolled or crimped flashings

• be selected for corrosion protection according to the intended exposure zone as shown in Table 20 of ‘E2AS1’.

9.3.2. Aluminium-zinc coated steel flashings Aluminium-zinc coated steel flashings shall:

• have a BMT of 0.55 mm minimum

• be grade G550, or G300 for curved or crimped flashings

• be selected for corrosion protection according to the intended exposure zone as shown in Table 20.

9.3.3. Stainless steel flashings Stainless steel flashings shall be:

• Minimum thickness of 0.45 mm, and

• 304 or 316 stainless steel in accordance with Table 1 of ISO/TS 15510.

9.3.4. Copper flashings Copper flashings shall be:


• A minimum thickness of 0.5 mm,

• In compliance with AS 1566, and

• Alloy, designation C11000 or C12200.

10. Laps

10.1. Horizontal laps

Laps must be:

• 32 mm for non-rebated boards, or

• 25 mm horizontal lap for rebated and rusticated boards, with a minimum gap of 2mm at the overlap between boards.

10.2. Vertical Weatherboard Vertical shiplap weatherboards shall:

• be fitted with a minimum gap of 2 mm at the overlap between boards.

10.3 Board and Batten Board and Batten weatherboards shall:

• Be fitted with a 5 mm to 8 mm gap between boards, and

• Have weather grooves to boards and battens aligned

11. Cut Ends All cut ends of Triclad Weatherboard must be coated in a treatment product such as Metalex..

12. Sealants All sealants must comply with the NZBC and application is to be done by following the instructions of the Manufacturer

instructions.

13. Durability

13.1. 50 year Durability To meet the requirements for a 50 year minimum durability level, when used as an exterior cladding (as per NZ Building

Code Clause B2 for claddings used as bracing or structural element) Triclad Weatherboards must be:

• H3 preservative treated

• Coated with a 3 coat acrylic coating system such as a good quality paint or film forming stain system. (Penetrating

stains do not meet this requirement)

• Coating colours must have a light reflectance value (LRV) of 40% or more

• Minimum total coating system film build of 90 microns Coating must be regularly maintained as part of a normal

building maintenance program throughout the life of the building.

Advice and assurances from the coating manufacturer must be sought and details submitted for approval with any building consent application to ensure

the applicable requirements for 50 year durability are achieved.

13.2. 15 year Durability

Coating colours that have a light reflectance value (LRV) of less than 40% or a penetrating stain system have a 15 year

durability. To meet the requirements for a 15 year minimum durability level, when used as an exterior cladding (as per

NZ Building Code Clause B2 for claddings used as bracing or structural element) Triclad Weatherboards must be:

• H3 preservative treated


• Coated with a penetrating stain system or Coated with a 3 coat acrylic coating system such as a good quality paint

system.

• Coating must be regularly maintained as part of a normal building maintenance program throughout the life of the

building.

14. Coatings

14.1. Primed Weatherboard

PPG 839 Enduraprime is ready for the final coating systems. To ensure best performance from PPG 839 Enduraprime in

construction and the prevailing environment after installation, the following painting guidelines are required for finishing

LOSP Triclad Weatherboard.

External applications (above ground):

• Ensure that primed timber is free from any dirt, oil or any other surface contaminants. Remove dirt thoroughly by

wiping clean.

• The best performance from PPG 839 Enduraprime is achieved when finishing coats are applied within 8 weeks of

installation. If the primer appears or becomes chalky or loose, lightly sand these areas as required and re-prime with a

quality primer. Prime any cut ends prior to installation with an end sealer and a quality primer to ensure the product is

sealed.

• When using waterbased acrylic topcoat, apply two coats of a premium brand acrylic topcoat as per label directions.

• When using an oil based topcoat, for optimum performance, firstly apply a good quality undercoat followed by two

coats of a premium brand alkyd topcoat as per label directions.

14.2. Stained Weatherboard

A quality stain must be used and applied as per manufacturer’s directions.

15. Maintenance

Routine maintenance is required to meet stated durability and is essential to ensure the performance over the life of the

weatherboards.

• Regular inspection of boards and coatings for weathering and movement, during clean downs is ideal.

• Special attention required on highly exposed aspects where some face checking*may occur.

• Inspect all joints, corners, and bottom of walls for debris and clearance for cavity batten drainage holes.

• Wash down walls regularly to remove contaminants with a recommendation of an annual wash down and application

of a slow release mould inhibitor.

• Repaint as soon as the first sign of deterioration of coating system is identified in accordance with coating

manufacturer’s specifications. Brush well into face checking*.

• Ensure dirt, garden soil or leaf build-up is cleared away from the cladding and any sub-floor ventilation with special

attention required to maintain air clearance for cavity batten drainage holes.

• Clean spouting and downpipes as required so that stormwater is not overflowing onto cladding.

* Face checking is the result of normal movement of moisture gains and loses often exacerbated by darker colours, and is considered normal it is not

limited by the manufacturer’s specifications for Triclad Weatherboards.

These are superficial and are confined to the face veneer only and do not alter the structural integrity of the plywood. After noting the checking recoat with the appropriate coating system, brushing well into face checks with paint brush.

16. Handling and Storage. Triclad Weatherboards are to be carried in the vertical position and must not be carried on their Flat. Triclad

Weatherboards are to be stored On a firm level base with timber supports at not greater than 800mm centres and are to be

covered and kept dry until installation.


17. Drawing Directory

Fig 1: to come

Fig 2: Cavity Base – Framing Batten Fixing Lapped/Rustic Weatherboards

Fig 3: Cavity Base Detail – Concrete floor

Fig 4: Cavity Base Detail – Timber Floor

Fig 5: Cavity - External Boxed Corner detail – Lapped Weatherboards

Fig 6: Cavity - External Soaker Corner detail – Lapped Weatherboards

Fig 7: to come

Fig 8: Corner Soaker Isometric Detail

Fig 9: Cavity – Internal Corner Option 1- Lapped Weatherboards

Fig 10: Cavity – Internal Corner Option 2 - Lapped Weatherboards

Fig 11: Cavity – Head Flashing detail – Lapped Weatherboards

Fig 12: Cavity – Sill Flashing detail – Lapped Weatherboards

Fig 13: Cavity – Jamb Flashing detail – Lapped Weatherboards

Fig 14: Cavity – Head Flashing detail – Rustic Weatherboards

Fig 15: Cavity – Sill Flashing detail – Rustic Weatherboards

Fig 16: Cavity – Jamb Flashing detail – Rustic Weatherboards

Fig 17: to come

Fig 18: to come

Fig 19: to come

Fig 20: to come

Fig 21: to come

Fig 22: to come

Fig 23: to come

Fig 24: Cavity – Head Flashing detail – Meterbox

Fig 25: Cavity – Sill Flashing detail – Meterbox

Fig 26: Cavity – Jamb Flashing detail – Meterbox

Fig 27: to come

Fig 28: Cavity – One Piece Apron Flashing

Fig 29-Fig 30: to come

Fig 31: Direct Fix Base Detail – Concrete floor

Fig 32: Direct Fix Base Detail – Timber Floor

Fig 33: to come

Fig 34: Direct Fix - External Soaker Corner detail – Lapped Weatherboards

James Roberts

Typewritten Text

James Roberts

Typewritten Text

James Roberts

Typewritten Text

James Roberts

Typewritten Text


Fig 35: Direct Fix – Internal Corner Option 1- Lapped Weatherboards

Fig 36: to come

Fig 37: to come

Fig 38: Direct Fix – Internal Corner Option 1- Lapped Weatherboards



Fig 39-Fig 41: to come

Fig 42: Direct Fix – Head Flashing - Lapped Weatherboards

Fig 43: Direct Fix – Sill Flashing detail – Lapped Weatherboards

Fig 44: Direct Fix – Jamb Flashing detail – Lapped Weatherboards

Fig 45: Direct Fix – Head Flashing - Rustic Weatherboards

Fig 46: Direct Fix – Sill Flashing detail – Rustic Weatherboards

Fig 47: Direct Fix – Jamb Flashing detail – Rustic Weatherboards

Fig 48: to come

Fig 49: to come

Fig 50: to come

www.triclad.co.nz Ph. 0800 TRICLAD

800

800

600 600 600 600

800

Figure 2: Framing Batten Fixing Triclad Lapped/Rustic Weatherboards Cavity System

{Note:} No horizontal timber cavity battensrequired at nogs

Minimum stud width 45mm

Maximum nog spacing

Stud centres

Batten fixing pointsTimber cavitybattens at

300mm centres

50

120

24

30

Figure 3: Cavity Base for Horizontal Lapped Weatherboards Concrete Slab

* Rustic Weatherboards to have same50mm drop to lower edge from top of slab

50mm

Ground level

20mmnominalcavity

150mm min to perm

anent paving or 225mm

min to unpaved ground to clause 9.1.3 of

E2/AS1

Concrete slab / footing

Bottom plate

D.P.C.

Building underlay

Timber cavity batten

25mm wide cant strip. H3.1treated timber. Thickness tosuit selected weatherboard.

uPVC vent strip with1000mm{² }of opening perlineal metre. Mitre at corners.Keep clear of debris

50

50

23

Figure 4: Cavity Base for Horizontal Lapped Weatherboards Timber Floor

* Rustic Weatherboards to have same 50mmdrop to lower edge from top of flooring

20mmnominalcavity



Building underlay


H3.2 boundary joists, if H1.2 joistsused the cladding is to drop 50mmbelow bottom edge of joists

Bottom plate

D.P.C.


50

50

Facing Board Vertical Batten

Min. ex 25mm cover boardswith 6x6mm weathergrooves

Scriber cut to fit. Sealant toback of scriber and face ofweatherboard joint

Triclad horizontal lappedWeatherboards

Building wrap

Cavity battens

Figure 5: External Boxed for Triclad Lapped Weatherboards Cavity System

Note: Corner battens shall be sized to provide50mm minimum cover over claddingNote: Corner battens shall be sized to provide50mm minimum cover over cladding

building wrap

Metal Corner Soaker overbutt finish boards


50x50mm corner flashing over

Building wrap

Cavity battens

Figure 6: External Mitred Corner Triclad Lapped Weatherboards Cavity System


50x50 flashing

Building wrap

Cavity battens

Corner soaker


Figure 8: Corner Soakers for Horizontal Lapped Weatherboards

Note: External corner detail with soaker issimilar for direct fix weatherboardsNote: External corner detail with soaker issimilar for direct fix weatherboards


Scribed and notched corner forweatherboards

50x50 corner flashing

Building wrap

Cavity Battens


Figure 9: Internal Corners for Triclad Lapped Weatherboards Cavity System

50x50 min Corner Flashing

Butt Weatherboards toone piece corner flashing

Building wrap

Cavity battens

Figure 10: Internal Corners for Triclad Lapped Weatherboards Cavity System


10

4

Cavity Battens

Building wrap and flexible flashing tape

Horizontal batten under windowas necessary to suit profile

Triclad horizontal lapped weatherboard

Air seal

Packers

Figure 12: Sill Flashing for Triclad Lapped Weatherboards Cavity System

Note: 1. Window profile to be selected to achieve cover shown indetails2. Architraves are shown for consistency only, detail may beused with rebated line3. Make allowance between packer at sills for supportbrackets for large windows. Such brackets require specificdesign, and shall be supplied by the window manufacturer.

8

10

Cavity base closure positioned to give15mm. drip edge to cladding

Triclad horizontal lapped Weatherboardblock behind as necessary for support

Additional Building wrap or flashingtape lap over head flashing(placed over building wrap)

Building wrap dressed into opening withflexible flashing tape installed over wrapto corners head

Stop ends to head flashing

Cavity battens

Air seal Note: 1. Window profile to be selected to achieve cover shown indetails2. Architraves are shown for consistency only, detail may beused with rebated line3. Make allowance between packer at sills for supportbrackets for large windows. Such brackets require specificdesign, and shall be supplied by the window manufacturer.

Formed Aluminium Head Flashing

Stop ends to upper flashing

Packers

Figure 11: Head Flashing Window forTriclad Lapped Weatherboards Cavity System


10

5

Figure 14: Head Flashing Window for Triclad Rustic Weatherboards Cavity System

Additional Building wrap or flashingtape lap over head flashing(placed over building wrap)


Cavity base closure positioned to give15mm. drip edge to cladding

Building wrap dressed into openingwith flexible flashing tape installed overwrap to corners at head

Stop ends to upper flashing

Cavity battens

Air seal

Triclad rusticated Weatherboard

Packers

2220



Triclad horizontal lapped weatherboard

1. Window profile to be selected to achieve cover shown in

2. Architraves are shown for consistency only, detail may be

3. Make allowance between packer at sills for support

40x12 Scriber sealed to Weatherboards

Triclad horizontal lapped Weatherboard

Building wrap dressed into openingwith flexible flashing tape installed overwrap at corners head

Line of head flashing over

Cavity battens

Air seal

Packers

Figure 13: Jamb Flashing Window for Triclad Lapped Weahterboards Cavity System


22 20

Figure 16: Jamb Flashing Window for Triclad Rustic Weahterboards Cavity System


Timber plugs to rustic board,seal in place

Triclad rustic profile Weatherboard


Air Seal

Packers


Cavity Battens

10

Figure 15: Sill Flashing for Triclad Rustic Weatherboards Cavity System


Cavity Batten

Building wrap and flexibleflashing tape

Triclad rustic profile Weatherboard

Air seal

Packers


5

35

15

5mm m

in

15mm

Figure 24: Head Flashing Meter Box forTriclad Weatherboards Cavity System

Building underlay


Triclad Weatherboards

Additional building underlayor flashing tape overflashing

H3.1 treated timber cantstrip

Flashing 15° min slope,rivet to metal angle,required at head only with aminimum cover of 10mm

Metal meter box

Flashing to lap over themetal angle. Metal angle tobe continuous around meterbox. Seal and rivet in place.

Airseal around all sides ofmeter box

Continue building underlayaround framing

Flexible flashing tape atcorners

Nog as required


10


Triclad Weatherboards

Continuous sealantto metal angle

Metal meter box

Metal angle to becontinuous around meterbox. Seal and rivet inplace.



Continue building underlayaround framing

Building underlay

Figure 25: Sill Flashing Meter Box forTriclad Weatherboards Cavity System

Figure 26: Jamb Flashing Meter Box forTriclad Weatherboards Cavity System

Triclad WeatherboardsLapped or Rustic

Timber cavity battens

Scriber

Line of head flashing over20mm past scriber

Seal against the meter box

Metal meter box

Building underlay

Continue buildingunderlay around framing



Metal angle to becontinuous around meterbox. Seal and rivet in place.


35

75

198

15

Figure 28: One Piece Apron Flashing Cavity System

flashing leg above base of

weatherboard

Refer to E2/AS1 Table 7

clear gap

When 50 year durability for flashing is required refer Table 20 NZBCE2/AS1 document.

*

*

Refer Figure 7 and Table 7 of E2/AS1 document

15mm

Building underlay

Flashing tape or extra layer ofbuilding wrap over flashing


Triclad Lapped weatherboard

Flashing

H3 treated timber cant strip

uPVC vent strip

Edge of flashing dresseddown or notched

Roof underlay continued upbehind flashing

Selected roofing with stopend

Roof framing

Nog as required


50

120

6

50mm

Ground level

6mm framingoverhang

150mm min to perm

anent paving or 225mm

min to unpaved ground to clause 9.1.3 of

E2/AS1

D.P.C.

Bottom plate

Concrete slab / footing

25mm wide cant strip. H3.1treated timber. Thickness to suitselected weatherboard.

Building underlay

Figure 31: Direct Fix Base for Horizontal Lapped Weatherboards Concrete Slab

50

50


Triclad Lapped HorizontalWeatherboards

Building underlay


H3.2 boundary joists, if H1.2 joistsused the cladding is to drop 50mmbelow bottom edge of joists

Bottom plate

D.P.C.

Figure 32: Direct Fix Base for Horizontal Lapped Weatherboards Timber Floor


50

50

Figure 34: External Boxed for Triclad Lapped Weatherboards Direct Fix System

40x12 scriber cut to fit. Sealant toback of scriber and face ofweatherboard joint

50x50 corner flashing

Min. ex 25mm cover boards with6x6mm weathergrooves

40x12 scriber cut to fit. Sealant to back ofscriber and face of weatherboard joint

Triclad horizontal lapped Weatherboards

Building wrap

Vertical Batten

Note: Corner battens shall be sized to provide 50mm minimum cover over cladding

Metal Corner Soaker over

Figure 35: External Mitred Corner Triclad Lapped Weatherboards Direct Fix System

butt finish boards

50x50mm corner flashing overbuilding wrap

Building wrap

Note: Corner battens shall be sized to provide 50mm minimum cover over cladding


Figure 38: Internal Corners for Triclad Lapped Weatherboards Direct Fix System

50x50mm corner flashingover building wrap

Building wrap

Triclad horizontal lappedWeatherboards butt into corner


12

33

5


Additional Building wrap or flashing tapelap over head flashing(placed over building wrap)


Figure 42: Head Flashing for Triclad Lapped Weatherboards Direct Fix System

Stopends to headflashing


Air seal

Packers

10

5 35


Figure 43: Sill Flashing for Triclad Lapped Weatherboards Direct Fix System

Air seal

Packers

Horizontal batten under windowas necessary to suit proflie

10mm min. joinery cover to flashing

Building wrap and flexibleflashing tape

5mm gap without seal

Sill flashing with 5° min fall andhem to back edge

Line of 10mm min upstand at bothends of sill flashing

Sill flashing to line with back ofwindow frame

Note: 1. Window profile to be selected to achieve cover shown indetails2. Architraves are shown for consistency only, detail may beused with rebateted line3. Make allowance between packer at sills for support brackets for large windows. Such brackets require specific design, andshall be supplied by the window manufacturer.

35mm min. flashing cover


20

40x12 Scriber sealed to Weatherboards

Figure 44: Jamb Flashing for Triclad Lapped Weatherboards Direct Fix System

Building wrap dressed into opening withflexible flashing tape installed over wrap

Air seal

Packers

Line of sill flashing under

Line of sill flashing upstand


Note: 1. Window profile to be selected to achieve cover shown indetails2. Architraves are shown for consistency only, detail may beused with rebated line3. Make allowance between packer at sills for support bracketsfor large windows. Such brackets require specific design, andshall be supplied by the window manufacturer.


5

33

15

Triclad rusticated Weatherboard


Figure 45: Head Flashing for Triclad Rustic Weatherboards Direct Fix System

Additional building wrap from overlapabove lapped over flashing

Stopends to head flashing


Air seal

Packers


10

35

Figure 46: Sill Flashing for Triclad Rustic Weatherboards Direct Fix System

Chamfer trimmer plateas required to suit flashing

10mm min. joinery cover to flashing


5mm gap without seal

Sill flashing with 5° min fall andhem to back edge

Line of 10mm min upstand at bothends of sill flashing

Sill flashing to line with back ofwindow frame

Air seal

Packers

Note: 1. Window profile to be selected to achieve cover shown in details2. Architraves are shown for consistency only, detail may be usedwith rebated line3. Make allowance between packer at sills for support brackets forlarge windows. Such brackets require specific design, and shall besupplied by the window manufacturer.

35mm min. flashing cover


20

31

J mould for weatherboards tosit into, ensure placement isover sill flashing

Figure 30: Jamb Flashing for Triclad Rustic Weatherboards Direct Fix System

Building wrap dressed into opening with flexibleflashing tape installed over wrap to corners at head

Air seal

Packers

Line of sill flashing under

Line of head flashing above

Sealant to fillets



Ph. 0800 TRICLAD · PDF file Ph. 0800 TRICLAD 4 1. Application and Scope 1.1. Application...

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Transcript of Ph. 0800 TRICLAD · PDF file Ph. 0800 TRICLAD 4 1. Application and Scope 1.1. Application...