Timspec CERTCLAD Bevel Back Cavity System Installation Manual

Timspec CERTCLAD Weatherboards

Bevel Back Cavity System Installation Manual

Timspec CERTCLAD Weatherboards Bevel Back Cavity System Installation Manual Version 1-3

T ABLE

OF

C ONTENTS Scope ...................................................................... 2 Health and Safety .................................................... 6 Site Preparation....................................................... 7 Pre-Installation ....................................................... 9 Materials ............................................................... 10 Installing Cavity Battens ........................................ 25 Fixing Details for Weatherboard ............................ 28 Inter-Storey Cavity Junctions ................................. 33 Within-Board Joins ................................................ 34 External 90° Corner Details ................................... 35 External 135° Corner Details ................................. 39 Internal 90° Corner Details .................................... 40 Internal 135° Corner Details .................................. 44 Bottom Plate (Base of Wall) Details ........................ 46 Enclosed Deck Details ........................................... 50 Top Plate (Top of Wall) Details............................... 53 Parapet/Enclosed Balustrade Details...................... 58 Pipe Penetration Details ........................................ 64 Meter Box ............................................................. 66 Site Clean-up ........................................................ 70 On-going Maintenance ......................................... 71

© Timber Specialists Limited 2011

Page 1 of 72

Updated: 2nd Nov 2012

TIMSPEC

AUCKLAND

CARTERTON

CHRISTCHURCH

The Timber Specialists

64 Stoddard Road, Mt Roskill

30 Kent Street

69 Hayton Road, Sockburn

Email: [email protected]

Ph: (09) 620-0260

Ph: (06) 379-9381

Ph: (03) 341-0242

Website: www.timspec.co.nz

Fax: (09) 620-0261

Fax: (06) 379-9382

Fax: (03) 341-0243


S COPE I NTENDED U SE This Bevel Back Weatherboard Cavity System has been designed for use as cladding for residential and small commercial buildings. It is only suitable for buildings with a „Risk Score‟ of 20 or below as per the „Risk Matrix‟ outlined in E2/AS1. Refer to the Department of Building and Housing‟s booklet titled „External moisture - a guide to using the risk matrix‟ for more information.

This is an Alternative Solution in terms of NZBC compliance.

V ALIDITY CodeMark certification is only valid when all products in the weatherboard system are CERTCLAD branded or Timspec approved and all methods and procedures outlines in this manual are followed. This is to ensure that all products are up to the standards required by CodeMark and are installed in the correct manner.


Page 2 of 72


TIMSPEC

AUCKLAND

CARTERTON

CHRISTCHURCH



30 Kent Street



Ph: (09) 620-0260

Ph: (06) 379-9381

Ph: (03) 341-0242


Fax: (09) 620-0261

Fax: (06) 379-9382

Fax: (03) 341-0243


S COPE (C ONTINUED ) P ERFORMANCE When installed and maintained as specified in this manual and the work is done by a qualified tradesman using accepted trade practices, it will meet the applicable sections of the following requirements of the NZBC (New Zealand Building Code as contained in the Building Regulations Act 1992): 

B1 Structure



B2 Durability



E2 External Moisture



F2 Hazardous Building Materials

This is evidenced by conformance with the objectives of the following Department of Building and Housing Compliance documents: 

B1/AS1 (amendment 10, effective from 19 May 2011)



B2/AS1 (amendment 7, effective from 4 April 2011)



E2/AS1 (third edition, amendment 5, effective from 1 August 2011)



F2/AS1 (amendment 2, effective from 1 December 2000)


Page 3 of 72


TIMSPEC

AUCKLAND

CARTERTON

CHRISTCHURCH



30 Kent Street



Ph: (09) 620-0260

Ph: (06) 379-9381

Ph: (03) 341-0242


Fax: (09) 620-0261

Fax: (06) 379-9382

Fax: (03) 341-0243


S COPE (C ONTINUED ) W IND Z ONES This solution is only acceptable for wind zones up to and including „Very High‟ as defined in NZS 3604 (New Zealand Standard 3604:2011 Timber Framed Buildings).

Note: Extra High wind zones are outside the scope of this document. Please refer to E2/AS1 for construction details as rigid underlays and larger flashings will be required.

M ASS The mass of Timspec Bevel Back Weatherboard is approximately 12 kg/m2 and therefore is considered a lightweight cladding by NZS 3604.

Weatherboard

Timber Density

Approx Mass

Material

(Air Dried)

Accoya® wood

512 kg/m3

10.5 - 14.9 kg/m²

Radiata Pine

500 kg/m3

10.3 - 14.6 kg/m²

Western Red Cedar

385 kg/m3

7.7 - 11.4 kg/m²

L IFESPAN M INIMUM L IFE This Bevel Back Weatherboard Cavity System has 15-year durability as required by NZS 3602 (New Zealand Standard 3602:2003 Timber and wood-based products for use in building).


Page 4 of 72


TIMSPEC

AUCKLAND

CARTERTON

CHRISTCHURCH



30 Kent Street



Ph: (09) 620-0260

Ph: (06) 379-9381

Ph: (03) 341-0242


Fax: (09) 620-0261

Fax: (06) 379-9382

Fax: (03) 341-0243


S COPE

(C ONTINUED )

L IFESPAN (C ONTINUED ) S ERVICEABLE L IFE In addition to the above minimum life, this Bevel Back Weatherboard Cavity System is expected to have a serviceable life of at least: 

50 years for Accoya® wood; or



15 years for H3.1 treated Radiata Pine when painted; or



40 years for H3.2 treated Radiata Pine when painted; or



40 years for Western Red Cedar when coated.

This serviceable life is subject to the paint, coating and maintenance requirements below. More importantly some Cedar and Radiata Pine boards may require replacement over the lifetime of the cladding.

C OATING R EQUIREMENTS To achieve the above serviceable life all hidden faces of Western Red Cedar must be coated with a minimum of one coat of penetrating oil and all exposed faces must be coated with a further two coats, refer to page 17 for more information. For Radiata Pine all hidden face must be coated with one coat of primer and all exposed faces coated with a further two coats of a suitable topcoat, refer to page 15 for more detail.

M AINTENANCE R EQUIREMENTS The above serviceable life spans assume regular maintenance. Appearance will degrade over time unless timber is coated and both the coatings and all aspects of the cladding system are maintained.

Please refer to the On-Going Maintenance section on page 71 for more information about the required maintenance.


Page 5 of 72


TIMSPEC

AUCKLAND

CARTERTON

CHRISTCHURCH



30 Kent Street



Ph: (09) 620-0260

Ph: (06) 379-9381

Ph: (03) 341-0242


Fax: (09) 620-0261

Fax: (06) 379-9382

Fax: (03) 341-0243


H EALTH

AND

C UTTING

OF

S AFETY

T IMBER

Cutting of timber is to be done in a well ventilated area and a suitable dust mask, eye protection, and ear protection must be worn.

C OATING

AND

P RIMING

Coating and priming is to be done in a well ventilated area, refer to the coating/primer supplier for all matters relating to health and safety. All relevant sections of standard AS/NZS 2311:2009 (Guide to the painting of buildings) should be adhered to.


Page 6 of 72


TIMSPEC

AUCKLAND

CARTERTON

CHRISTCHURCH



30 Kent Street



Ph: (09) 620-0260

Ph: (06) 379-9381

Ph: (03) 341-0242


Fax: (09) 620-0261

Fax: (06) 379-9382

Fax: (03) 341-0243


S ITE P REPARATION S TRUCTURE

AND

F RAMING

N EW Z EALAND S TANDARD 3604 Generally, the timber framing must comply with NZS 3604 (Timber-framed buildings), however where specific engineering design is required the framing shall be at least of equivalent stiffness as the framing provisions of NZS 3604.

L AYOUT Studs must be at a spaced at a maximum of 600mm between centres. Dwangs (noggins) must be spaced at a maximum of 800mm between centres. Studs and dwangs must form a flush plane for cavity battens and weatherboards to be fixed to.

Additional framing may be required at soffits, corners, window and door openings.

M OISTURE C ONTENT The moisture content of the framing must not exceed 20% at the time of fixing the weatherboard as problems may occur later due to excessive timber movement if framing is too wet.


Page 7 of 72


TIMSPEC

AUCKLAND

CARTERTON

CHRISTCHURCH



30 Kent Street



Ph: (09) 620-0260

Ph: (06) 379-9381

Ph: (03) 341-0242


Fax: (09) 620-0261

Fax: (06) 379-9382

Fax: (03) 341-0243


S ITE P REPARATION (C ONTINUED ) B UILDING W RAP M ATERIAL Building wrap must comply with properties stipulated in Table 23 (Properties of roof underlays and building wraps) of E2/AS1.

I NSTALLATION Install the building wrap (also called wall underlay) directly over the framing i.e. under the cavity battens. No additional building wrap is required over the cavity battens.

INTERMEDIATE

S UPPORT

If studs are greater than 450mm between centres a polypropylene strap or galvanised wire must be run vertically between studs to provide intermediate support to prevent the building wrap from bulging into the cavity as referred to in paragraph 9.1.8.5 of E2/AS1.

H ORIZONTAL J OINS At horizontal joins (e.g. between stories) ensure that the upper layer overlaps the lower layer by minimum 75mm.

V ERTICAL J OINS Ensure that at vertical joins, the lap is minimum 150mm and situated over a stud.

T RIMMED O PENINGS Trimmed openings are to be prepared in accordance with E2/AS1 paragraph 9.1.5 or an approved alternative solution. We recommend that building wrap be turned into the opening and secured over the framing. Flexible flashing tape should be applied to the full width of the sill, and at the corners of the jamb and head, have minimum 100mm turn-up along jambs and heads have minimum 50mm lap over the exterior wall. © Timber Specialists Limited 2011

Page 8 of 72


TIMSPEC

AUCKLAND

CARTERTON

CHRISTCHURCH



30 Kent Street



Ph: (09) 620-0260

Ph: (06) 379-9381

Ph: (03) 341-0242


Fax: (09) 620-0261

Fax: (06) 379-9382

Fax: (03) 341-0243


P RE -I NSTALLATION O N - SITE S TORAGE

AND

H ANDLING

Care must be taken to ensure that timber and accessories are kept clean and dry, and are not damaged whilst in storage awaiting application.

Extra care is to be taken while handling timber to ensure that they are not damaged.

Timber is to be stacked on flat level bearers/dunage that are a maximum of 900mm apart and at least 100mm off the ground. Timber should either be stored inside an enclosed building or covered and protected from the elements when stored outside.

Important: Timber weatherboards should not be installed if their moisture content is outside the range of 14 - 18%.

D OCKING O UT D EFECTS Before coating or installing boards, check for any defects that may require docking out.

Important: All docked ends of stained or painted weatherboards will require priming with a minimum of one coat of primer or stain.

P RIMING

AND

S EALING (A PPLIES

TO

S TAINED

OR

P AINTED W EATHERBOARDS

ONLY )

Apply the first coat of stain or primer to all sides and edges of the weatherboard prior to installation. Remember that all docked ends will require priming as noted above. Follow the coating manufacturer‟s directions and ensure further coats are applied as required. All relevant sections of standard AS/NZS 2311:2009 (Guide to the painting of buildings) should be adhered to.

Note: It is usually easier to order your weatherboards to arrive on-site preprimed/precoated.


Page 9 of 72


TIMSPEC

AUCKLAND

CARTERTON

CHRISTCHURCH



30 Kent Street



Ph: (09) 620-0260

Ph: (06) 379-9381

Ph: (03) 341-0242


Fax: (09) 620-0261

Fax: (06) 379-9382

Fax: (03) 341-0243


M ATERIALS S UPPLY

AND

A LTERNATIVE I TEMS

W EATHERBOARDS All Weatherboards must be CERTCLAD brand weatherboard supplied by Timspec either directly or through an agent/merchant. This is to ensure that the weatherboard is up to standard (profile, grade, treatment, moisture content, etc). Any alternative or competitor supplied weatherboard will invalidate the CodeMark certification.

A NCILLARY I TEMS All Ancillary Items (Cavity Battens, Soakers, Flashings, Profiles, and Nails) must be supplied or approved by Timspec. This is to ensure that the compatibility and suitability of the ancillary items.

I TEMS P RECEDING OR S UCCESSIVE TO THE W EATHERBOARD S YSTEM All items that precede the installation of the weatherboard system (building wrap, roofing underlay, flashing tape, etc) and all consumables and items successive to the weatherboard system (PEF backing rods, flexible sealants, etc) will not be supplied by Timspec as these are outside their role.


Page 10 of 72


TIMSPEC

AUCKLAND

CARTERTON

CHRISTCHURCH



30 Kent Street



Ph: (09) 620-0260

Ph: (06) 379-9381

Ph: (03) 341-0242


Fax: (09) 620-0261

Fax: (06) 379-9382

Fax: (03) 341-0243


M ATERIALS

(C ONTINUED )

A CCOYA ® W OOD B EVEL B ACK W EATHERBOARD M ATERIAL New Zealand grown Radiata Pine modified to the core by a non-toxic, proprietary acetylation process.

D URABILITY Accoya is class one durable, furthermore it is guaranteed not to rot for 50 years in aboveground applications. For the purpose of this guarantee, rot is defined as fungal decay that materially damages the timber caused by the soft-rot fungal species: Poria placenta, Coniophora puteana, Gloeophyllum trabeum, Corriolus versicolor or Serpula lacrymans but does not include common surface mould, mildew or any other organism either bacteria or fungi.

Scion (New Zealand Forest Research Institute) compared Accoya to commonly used hardwoods, H3.2 and H4 CCA treated Radiata Pine as both ground contact stakes and fungus cellar stakelets (an accelerated decay environment). In both tests Accoya dramatically outperformed the durability of all the other timbers (including H4 treated Pine). The report “The Durability of Accoya Radiata Pine Sapwood Results from Ground Contact Tests after Five Years Exposure” is available from www.accoya-timspec.co.nz.

A BOUT A CETYLATION Accoya woods exceptional durability is a result of the acetylation process. Acetylation is a chemical process which effectively changes the free hydroxyls (chemical groups that readily absorb and release water, causing shrinkage and swelling) within the wood into acetyl groups. This is done by reacting the wood with acetic anhydride, which comes from acetic acid (known as vinegar when in its dilute form). When the free hydroxyl group is transformed to an acetyl group, the ability of the wood to absorb water is greatly reduced, rendering the wood more dimensionally stable and extremely durable.


Page 11 of 72


TIMSPEC

AUCKLAND

CARTERTON

CHRISTCHURCH



30 Kent Street



Ph: (09) 620-0260

Ph: (06) 379-9381

Ph: (03) 341-0242


Fax: (09) 620-0261

Fax: (06) 379-9382

Fax: (03) 341-0243


M ATERIALS

(C ONTINUED )

A CCOYA ® W OOD B EVEL B ACK W EATHERBOARDS (C ONTINUED ) M ATERIAL R ESOURCE FSC Certified - All Accoya® wood supplied from Timspec is from New Zealand grown FSC Certified resources and is sold under the Mixed Credit classification.

A BOUT FSC The Forest Stewardship Council (FSC) is an independent, non-governmental, not-for-profit organisation established to promote the responsible management of the world‟s forests. FSC has 10 principles and 56 associated criteria which describe how forests have to be managed in order to meet the social, economic, ecological, cultural and spiritual needs of present and future generations. They include managerial aspects, chain-of-custody requirements, as well as environmental and social requirements. FSC rules are the strictest and FSC‟s social and environmental requirements are the highest of any certification scheme. This is probably why FSC is the only forest certification system that is supported by all major environmental groups.

C OATING We recommend a fungicidal coating be applied to prevent unsightly (but non-detrimental) surface mould.

I MPORTANT N OTES Accoya wood has higher acidity levels than most timber and will cause oxidization or corrosion when in direct contact with certain metals and moisture. Do not use Accoya in direct contact with copper, galvanized steel, powder-coated aluminium, zinc-alum, or zinc plated steel.

Stainless Steel (304 or 316) or brass fastenings and fixings must be used as these will not degrade like other metals.


Page 12 of 72


TIMSPEC

AUCKLAND

CARTERTON

CHRISTCHURCH



30 Kent Street



Ph: (09) 620-0260

Ph: (06) 379-9381

Ph: (03) 341-0242


Fax: (09) 620-0261

Fax: (06) 379-9382

Fax: (03) 341-0243


M ATERIALS

(C ONTINUED )

A CCOYA ® W OOD B EVEL B ACK W EATHERBOARDS (C ONTINUED ) P ROFILES D RAWINGS


Page 13 of 72


TIMSPEC

AUCKLAND

CARTERTON

CHRISTCHURCH



30 Kent Street



Ph: (09) 620-0260

Ph: (06) 379-9381

Ph: (03) 341-0242


Fax: (09) 620-0261

Fax: (06) 379-9382

Fax: (03) 341-0243


M ATERIALS

(C ONTINUED )

R ADIATA P INE B EVEL B ACK W EATHERBOARD M ATERIAL New Zealand grown Radiata Pine preservative treated to an H3.1 or H3.2 level.

D URABILITY H3.1 treated Radiata Pine has an above-ground durability of 15 years when adequately painted. H3.2 treated Radiata Pine has above-ground durability of 40 years when adequately stained or painted.

M ATERIAL R ESOURCE FSC Certified where available - Radiata Pine supplied from Timspec is New Zealand grown and from a mixture of FSC Certified resources and non-contentious resources, please refer to invoice for details.

I MPORTANT N OTES Timber treated with a copper-based treatment (ACQ, CCA, etc) should not be in contact with metal wall claddings as this may lead to corrosion.


Page 14 of 72


TIMSPEC

AUCKLAND

CARTERTON

CHRISTCHURCH



30 Kent Street



Ph: (09) 620-0260

Ph: (06) 379-9381

Ph: (03) 341-0242


Fax: (09) 620-0261

Fax: (06) 379-9382

Fax: (03) 341-0243


M ATERIALS

(C ONTINUED )

R ADIATA P INE B EVEL B ACK W EATHERBOARD (C ONTINUED ) C OATING H3.1 T REATED W EATHERBOARD H3.1 treated Radiata Pine must be coated with a minimum one coat of primer and two further coats of alkyd or 100 percent acrylic. All relevant sections of standard AS/NZS 2311:2009 (Guide to the painting of buildings) should be adhered to.

Weatherboards will arrive onsite with one coat of Dulux Ultraprime already applied. All cut ends must be coated with a minimum of one coat of primer before installation. Immediately after fixing the weatherboards, all nail holes should be filled and spot-primed.

As soon as possible after fixing the weatherboards they should be over-coated with a minimum of two coats of a suitable premium paint. Follow the paint manufactures directions. If the weatherboard has been exposed to the elements for an extended period of time (generally 4 weeks) or if there is evidence of the primer chalking, then repriming will be necessary. This involves sanding the primer back to a sound surface and re-priming using a premium oil based primer.

C OATING H3.2 T REATED W EATHERBOARD For painting, please refer to the information above for H3.1 treated weatherboard.

Upon request we can supply H3.2 treated weatherboard uncoated for you to coat as you wish. Please be aware that a stain or penetrating oil will not last as long as a painted product. A suitable coating must be used to achieve the 15 year lifespan.

C OLOURS Dark colours attract more heat which will exacerbate any timber movement and/or resin bleed. For this reason we recommend the use of colours with a LRV (light reflective value) of 45% or more. © Timber Specialists Limited 2011

Page 15 of 72


TIMSPEC

AUCKLAND

CARTERTON

CHRISTCHURCH



30 Kent Street



Ph: (09) 620-0260

Ph: (06) 379-9381

Ph: (03) 341-0242


Fax: (09) 620-0261

Fax: (06) 379-9382

Fax: (03) 341-0243


M ATERIALS

(C ONTINUED )

R ADIATA P INE B EVEL B ACK W EATHERBOARD (C ONTINUED ) P ROFILES D RAWINGS


Page 16 of 72


TIMSPEC

AUCKLAND

CARTERTON

CHRISTCHURCH



30 Kent Street



Ph: (09) 620-0260

Ph: (06) 379-9381

Ph: (03) 341-0242


Fax: (09) 620-0261

Fax: (06) 379-9382

Fax: (03) 341-0243


M ATERIALS

(C ONTINUED )

W ESTERN R ED C EDAR B EVEL B ACK W EATHERBOARD M ATERIAL North American grown Western Red Cedar (Thuja plicata).

D URABILITY Western Red Cedar is naturally durable for 25 years; however some boards will require replacement during this time.

M ATERIAL R ESOURCE FSC or PEFC Certified where available - Western Red Cedar supplied from Timspec is North American grown and from a mixture of FSC Certified, PEFC Certified resources and noncontentious resources, please refer to invoice for details.

C OATING No coating is required, however a coating and will dramatically improve the appearance, performance and durability of the cladding. Timspec recommend a coating system comprising a base coat of a penetrating oil to all sides of the weatherboard followed by two top coats to all exposed faces. Dark colours attract more heat which will exacerbate any timber movement, for this reason we only recommend light colours.

I MPORTANT N OTES Careful board selection will help improve the lifespan of your cladding. Quarter sawn boards should be selected for use in higher exposure areas, such as north facing walls and lower parts of the wall (where boards are less protected by eaves).


Page 17 of 72


TIMSPEC

AUCKLAND

CARTERTON

CHRISTCHURCH



30 Kent Street



Ph: (09) 620-0260

Ph: (06) 379-9381

Ph: (03) 341-0242


Fax: (09) 620-0261

Fax: (06) 379-9382

Fax: (03) 341-0243


M ATERIALS

(C ONTINUED )

W ESTERN R ED C EDAR B EVEL B ACK W EATHERBOARD (C ONTINUED ) P ROFILES D RAWINGS


Page 18 of 72


TIMSPEC

AUCKLAND

CARTERTON

CHRISTCHURCH



30 Kent Street



Ph: (09) 620-0260

Ph: (06) 379-9381

Ph: (03) 341-0242


Fax: (09) 620-0261

Fax: (06) 379-9382

Fax: (03) 341-0243


M ATERIALS

(C ONTINUED )

C AVITY B ATTENS M ATERIAL H3.1 treated Radiata Pine

D IMENSIONS Machined to a finished size of 45mm wide (to match framing width) and 18-25mm thick for packer (non-structural) battens or 20mm thick for structural battens.

D IAGRAM


Page 19 of 72


TIMSPEC

AUCKLAND

CARTERTON

CHRISTCHURCH



30 Kent Street



Ph: (09) 620-0260

Ph: (06) 379-9381

Ph: (03) 341-0242


Fax: (09) 620-0261

Fax: (06) 379-9382

Fax: (03) 341-0243


M ATERIALS

(C ONTINUED )

N AILS M ATERIAL Nails can be either: Galvanised Steel, Silicone Bronze or Stainless Steel (316).

C OMPATIBILITY Refer to the table below to check the compatibility of Nails and Weatherboard materials:

Nail Material

Weatherboard Material Accoya

H3.1 treated

H3.2 treated

Western Red

wood

Radiata Pine

Radiata Pine

Cedar

Silicone Bronze

No

Yes

Yes

Yes

Galvanised Steel

No

Yes

Conditional

No

Stainless Steel (316)

Yes

Yes

Yes

See Note Below

Yes

Note: In Sea-spray zones, all nails are to be Stainless Steel as per NZS 3604 paragraph 4.2.3.

Note: All of the following conditions must be met in order to use Galvanised Steel nails in H3.2 treated Radiata Pine weatherboards: 1. Timber treatment must be CCA; and 2. Nails must be punched below timber surface and filled with a suitable filler to prevent water from accessing the nail; and 3. Weatherboards must be painted as detailed in Coating H3.1 Treated Weatherboards on page 15.

Important: If the timber treatment is ACQ or CuAz then you must use stainless steel nails as these treatments are more corrosive. If the nails are rosehead or pentagon-head then you must use stainless steel nails as the nail will sit above the timber surface and be exposed to water. If the weatherboard is not painted you must use stainless steel nails.


Page 20 of 72


TIMSPEC

AUCKLAND

CARTERTON

CHRISTCHURCH



30 Kent Street



Ph: (09) 620-0260

Ph: (06) 379-9381

Ph: (03) 341-0242


Fax: (09) 620-0261

Fax: (06) 379-9382

Fax: (03) 341-0243


M ATERIALS

(C ONTINUED )

S OAKERS M ATERIAL Soakers can be either: Galvanised Steel, Aluminium, Stainless Steel (304) or Copper.

C OMPATIBILITY Refer to the table below to check the compatibility of Soakers and Weatherboard materials:

Soaker Material


H3.1 treated

H3.2 treated

Western Red

wood

Radiata Pine

Radiata Pine

Cedar

Aluminium

No

Yes

No

Yes

Copper

No

Yes

Yes

Yes

Galvanised Steel

No

Yes

No

No


Yes

Yes

Yes

Yes

P RODUCT C ODES Refer to the table below for the appropriate product code: Product Code Soaker

Galvanised

Aluminium

Steel


Copper

150mm Flat Soaker

42060

42700

42632

42170

150mm 90° Corner Soaker

42000

42690

42620

42110


42005

42696

42626

42115

200mm Flat Soaker

42070

42702

42634

42180


42010

42692

42622

42120


42015

42698

42628

42125


Page 21 of 72


TIMSPEC

AUCKLAND

CARTERTON

CHRISTCHURCH



30 Kent Street



Ph: (09) 620-0260

Ph: (06) 379-9381

Ph: (03) 341-0242


Fax: (09) 620-0261

Fax: (06) 379-9382

Fax: (03) 341-0243


M ATERIALS

(C ONTINUED )

F LASHINGS M ATERIAL Flashings can be either: Galvanised Steel, Aluminium or Stainless Steel (304).

C OMPATIBILITY Refer to the table below to check the compatibility of Flashings and Weatherboard materials:

Material

Flashing


H3.1 treated

H3.2 treated

Western Red

wood

Radiata Pine

Radiata Pine

Cedar

Aluminium

No

Yes

No

Yes

Galvanised Steel

No

Yes

Yes

No


Yes

Yes

Yes

Yes


Page 22 of 72


TIMSPEC

AUCKLAND

CARTERTON

CHRISTCHURCH



30 Kent Street



Ph: (09) 620-0260

Ph: (06) 379-9381

Ph: (03) 341-0242


Fax: (09) 620-0261

Fax: (06) 379-9382

Fax: (03) 341-0243


M ATERIALS

(C ONTINUED )

F LASHINGS (C ONTINUED ) P RODUCT C ODES Refer to the table below for the appropriate product code: Product Code Flashing

Galvanised Steel

Aluminium


Flashings for closing the bottom of cavities:

20mm Cavity Base Closure Flashing

40218

40220

40222

40168

40930

40932

50 x 50mm External Corner (hemmed) Flashing

40105

40936

40940

90 x 90mm Internal Corner (hemmed) Flashing

40118

40937

40941

90 x 90mm 135° Internal Corner (hemmed) Flashing

40119

40938

40942

Capping

40205

40946

40949

Capping for Very High Windzones

40206

40947

40950

Saddle Flashing

40212

40213

40214

Meterbox „Z‟ Flashing

40214

40960

40966

Meterbox Head Flashing

40215

40961

40967

Meterbox Sill Flashing

40217

40963

40969

Meterbox Jamb Flashing

40216

40962

40968

Flashings for inter-storey cavity junctions:

35mm „Z‟ Flashing Flashings for corners:

Flashings for enclosed balustrades and parapets:

Flashings for meterboxes:


Page 23 of 72


TIMSPEC

AUCKLAND

CARTERTON

CHRISTCHURCH



30 Kent Street



Ph: (09) 620-0260

Ph: (06) 379-9381

Ph: (03) 341-0242


Fax: (09) 620-0261

Fax: (06) 379-9382

Fax: (03) 341-0243


M ATERIALS

(C ONTINUED )

F LASHINGS (C ONTINUED ) D IAGRAMS


Page 24 of 72


TIMSPEC

AUCKLAND

CARTERTON

CHRISTCHURCH



30 Kent Street



Ph: (09) 620-0260

Ph: (06) 379-9381

Ph: (03) 341-0242


Fax: (09) 620-0261

Fax: (06) 379-9382

Fax: (03) 341-0243


I NSTALLING C AVITY B ATTENS Cavities must comply with E2/AS1 paragraphs 9.1.8 to 9.1.9.4 Refer to Department of Building and Housing‟s booklet titled „Constructing Cavities for Wall Claddings‟ for further information about installing cavity battens.

P ACKER VS S TRUCTURAL C AVITY B ATTENS There are two methods available for installing Cavity Battens: 

Packer Cavity Battens: which are only temporarily fixed to the framing until the weatherboard is installed at which point the weatherboard fixing permanently fixes the cavity batten to the framing. The main disadvantage of this method is it requires a larger nail to penetrate the weatherboard and cavity batten to attain the required framing penetration.



Structural Cavity Battens: which are permanently fixed to the framing by larger and more frequent nails. This results in the batten being considered part of the framing in respect to the fixing of Weatherboard, which means that a 35mm fixing penetration can be achieved with 20mm in the batten and 15mm in the framing so that a smaller nail can be used for fixing the weatherboard. The disadvantage of this method is that it requires a more rigorous fixing of the cavity batten to the framing.

Refer to BRANZ bulletin 475 (August 2006) for more details on Structural Cavity Battens.

M ATERIAL As per the requirements on the materials page 19: Cavity battens are to be H3.1 treated Radiata Pine machined to a finished size of 45mm wide (to match framing width) and 1825mm thick for packer (non-structural) battens or 20mm thick for structural battens.

P RECAUTIONS As solvents in LOSP treatments can affect bitumen used in some building papers, it is necessary to fillet stack timber for 7 days after treatment to ensure that solvent has evaporated before contact with any bitumen-based building paper.


Page 25 of 72


TIMSPEC

AUCKLAND

CARTERTON

CHRISTCHURCH



30 Kent Street



Ph: (09) 620-0260

Ph: (06) 379-9381

Ph: (03) 341-0242


Fax: (09) 620-0261

Fax: (06) 379-9382

Fax: (03) 341-0243


I NSTALLING C AVITY B ATTENS

(C ONTINUED )

L OCATION The cavity battens must be fixed over the building wrap.

F IXING S TRUCTURAL C AVITY B ATTENS Structural cavity battens are to be fixed to the framing with either: 

60 x 2.8mm jolt or flat head, hot dipped galvanised nails; or



75 x 3.15mm jolt or flat head, hot dipped galvanised nails; or



Paslode Impulse 65 x 2.87mm „D‟ flat head, power-driven, galvanised nails.

Structural cavity battens are to be fixed to the framing at 300mm centres with fixings staggered 12mm either side of the batten centreline. Note: Cavity Structural Battens must be 20mm thick as stipulated in the Materials section on page 19.

F IXING P ACKER ( NON - STRUCTURAL ) C AVITY B ATTENS Packer cavity battens are to be fixed to the framing with either: 

40 x 2.5mm flat head, hot dipped galvanised nails; or



Paslode Impulse 50 x 2.8mm „D‟ flat head, power-driven, galvanised nails.

Packer cavity battens are to be fixed to the framing at 800mm centres. Note: Fixing is only temporary for packer cavity battens as the weatherboard fasteners are used to permanently fix the batten.


Page 26 of 72


TIMSPEC

AUCKLAND

CARTERTON

CHRISTCHURCH



30 Kent Street



Ph: (09) 620-0260

Ph: (06) 379-9381

Ph: (03) 341-0242


Fax: (09) 620-0261

Fax: (06) 379-9382

Fax: (03) 341-0243


I NSTALLING C AVITY B ATTENS

(C ONTINUED )

T OP OF W ALL D ETAIL No ventilation is required at the top of the cavity. Use a horizontal batten at the top of the wall to close off the top of the cavity. This prevents damp air circulating from the cavity space into interior spaces such as roof framing or eaves and is extremely important where the cavity finishes beneath an area that is open to a roof space (such as a wall finishing under a soffit).

B OTTOM OF W ALL D ETAIL Use a „Cavity Base Closure Flashing‟ at the bottom of the wall to allow drainage and ventilation but prevent the entry of vermin. This also applies where cavities end over a window, door or other opening. Ensure building wrap laps over the cavity base closure or use flashing tape to seal the top of the cavity base closure to the building wrap.

H ORIZONTAL B ATTENS OR S PACERS If you use a horizontal batten (apart from at the top of a wall), for example to provide intermediate support, then make sure there is minimum 50mm clearance on each side to the vertical batten and the horizontal batten must have a minimum 5° slope to allow water to run off.


Page 27 of 72


TIMSPEC

AUCKLAND

CARTERTON

CHRISTCHURCH



30 Kent Street



Ph: (09) 620-0260

Ph: (06) 379-9381

Ph: (03) 341-0242


Fax: (09) 620-0261

Fax: (06) 379-9382

Fax: (03) 341-0243


F IXING D ETAILS

FOR

W EATHERBOARD

F IXING M ETHOD Nail placement is to be maximum 42mm above bottom edge of weatherboard to ensure that it is maximum 10mm above the top of lower board. The nail must not penetrate the underlapping (lower) board.

Pre-drill all nail holes using a bit that is slightly smaller than the nail to prevent splitting.

Nail on an upward angle to prevent water running down the nail through the cavity.

Hand-drive all nails, gun-driven nails are not recommended as they may damage the surface of the timber.

N AIL S ELECTION C HART Painted Weatherboard

Stained/bare Weatherboard

65 x 3.2mm rose head Structural Cavity Battens

75 x 3.15mm jolt head nail

or pentagon head annular grooved nail

90 x 4.0mm jolt head nail

85 x 3.2mm rose head

Or

or pentagon head

75 x 3.15mm annular

annular grooved nail

Packer Cavity Battens

grooved nail


Page 28 of 72


TIMSPEC

AUCKLAND

CARTERTON

CHRISTCHURCH



30 Kent Street



Ph: (09) 620-0260

Ph: (06) 379-9381

Ph: (03) 341-0242


Fax: (09) 620-0261

Fax: (06) 379-9382

Fax: (03) 341-0243


F IXING D ETAILS

FOR

W EATHERBOARD

(C ONTINUED )

D IAGRAM FOR P AINTED W EATHERBOARDS WITH S TRUCTURAL C AVITY B ATTENS


Page 29 of 72


TIMSPEC

AUCKLAND

CARTERTON

CHRISTCHURCH



30 Kent Street



Ph: (09) 620-0260

Ph: (06) 379-9381

Ph: (03) 341-0242


Fax: (09) 620-0261

Fax: (06) 379-9382

Fax: (03) 341-0243


F IXING D ETAILS

FOR

W EATHERBOARD

(C ONTINUED )

D IAGRAM FOR P AINTED W EATHERBOARDS WITH P ACKER C AVITY B ATTENS

Note: Although a 90 x 4.0mm jolt head nail is shown (achieving 35mm framing penetration), a smaller 75 x 3.15mm nail may be used if it is annular grooved (which only needs to achieve a 25mm framing penetration).


Page 30 of 72


TIMSPEC

AUCKLAND

CARTERTON

CHRISTCHURCH



30 Kent Street



Ph: (09) 620-0260

Ph: (06) 379-9381

Ph: (03) 341-0242


Fax: (09) 620-0261

Fax: (06) 379-9382

Fax: (03) 341-0243


F IXING D ETAILS

FOR

W EATHERBOARD

(C ONTINUED )

D IAGRAM FOR S TAINED OR BARE W EATHERBOARDS WITH S TRUCTURAL C AVITY B ATTENS

Care must be taken when nailing rose head or pentagon head nails, they must be hand driven. Too much force will damage the face of the timber.

When nailing rose head or pentagon head nails on an upward angle, care should be taken to get the nails finishing on the face of the weatherboard.


Page 31 of 72


TIMSPEC

AUCKLAND

CARTERTON

CHRISTCHURCH



30 Kent Street



Ph: (09) 620-0260

Ph: (06) 379-9381

Ph: (03) 341-0242


Fax: (09) 620-0261

Fax: (06) 379-9382

Fax: (03) 341-0243


F IXING D ETAILS

FOR

W EATHERBOARD

(C ONTINUED )

D IAGRAM FOR S TAINED OR BARE W EATHERBOARDS WITH P ACKER C AVITY B ATTENS

Care must be taken when nailing rose head or pentagon head nails, they must be hand driven. Too much force will damage the face of the timber.

When nailing rose head or pentagon head nails on an upward angle, care should be taken to get the nails finishing on the face of the weatherboard.


Page 32 of 72


TIMSPEC

AUCKLAND

CARTERTON

CHRISTCHURCH



30 Kent Street



Ph: (09) 620-0260

Ph: (06) 379-9381

Ph: (03) 341-0242


Fax: (09) 620-0261

Fax: (06) 379-9382

Fax: (03) 341-0243


I NTER -S TOREY C AVITY J UNCTIONS U SE Cavities may be continuous up to two storeys but, due to limitations on drainage and drying, walls over two storeys in height require a horizontal divider.

D IAGRAM


Page 33 of 72


TIMSPEC

AUCKLAND

CARTERTON

CHRISTCHURCH



30 Kent Street



Ph: (09) 620-0260

Ph: (06) 379-9381

Ph: (03) 341-0242


Fax: (09) 620-0261

Fax: (06) 379-9382

Fax: (03) 341-0243


W ITHIN -B OARD J OINS U SE Use a within-board join to join two weatherboards together for longer length walls.

M ETHOD Weatherboards may be joined by scarfing two boards together over a stud. Use an appropriate adhesive to bond the boards together and nail through the top board only. Space the nail 21mm from the edge of the join to avoid hitting the underlapping board. Care should be taken to select and use two boards that have equal moisture contents; otherwise one board may shrink or expand at a differing rate putting stress on the joint.

An optional flat soaker may be nailed in place over the join.

D IAGRAM


Page 34 of 72


TIMSPEC

AUCKLAND

CARTERTON

CHRISTCHURCH



30 Kent Street



Ph: (09) 620-0260

Ph: (06) 379-9381

Ph: (03) 341-0242


Fax: (09) 620-0261

Fax: (06) 379-9382

Fax: (03) 341-0243


E XTERNAL 90° C ORNER D ETAILS B OXED C ORNER M ETHOD For Boxed corners use two cover boards and two lengths of scriber to box the corner. The cover boards must cover a minimum of 50mm of the weatherboards.

Important: Building wrap must run continuously around the corner.

D IAGRAM


Page 35 of 72


TIMSPEC

AUCKLAND

CARTERTON

CHRISTCHURCH



30 Kent Street



Ph: (09) 620-0260

Ph: (06) 379-9381

Ph: (03) 341-0242


Fax: (09) 620-0261

Fax: (06) 379-9382

Fax: (03) 341-0243


E XTERNAL 90° C ORNER D ETAILS M ITRED C ORNER

WITHOUT

(C ONTINUED )

S OAKERS

U SE Mitred corners without soakers are only recommended for use with Accoya® wood, as Radiata Pine and Western Red Cedar lack the stability and may open up.

M ETHOD For Mitred corners use a 50 x 50mm External Corner (hemmed) Flashing behind the weatherboards (over the cavity battens). Make sure the mitres are tight and sealed to try to prevent the corner opening up. Avoid nailing too forcibly as undue stress on the mitred corner could cause it to open up.



Page 36 of 72


TIMSPEC

AUCKLAND

CARTERTON

CHRISTCHURCH



30 Kent Street



Ph: (09) 620-0260

Ph: (06) 379-9381

Ph: (03) 341-0242


Fax: (09) 620-0261

Fax: (06) 379-9382

Fax: (03) 341-0243


E XTERNAL 90° C ORNER D ETAILS M ITRED C ORNER

WITHOUT

(C ONTINUED )

S OAKERS (C ONTINUED )

D IAGRAM


Page 37 of 72


TIMSPEC

AUCKLAND

CARTERTON

CHRISTCHURCH



30 Kent Street



Ph: (09) 620-0260

Ph: (06) 379-9381

Ph: (03) 341-0242


Fax: (09) 620-0261

Fax: (06) 379-9382

Fax: (03) 341-0243


E XTERNAL 90° C ORNER D ETAILS

(C ONTINUED )

S OAKERS C ORNER M ETHOD For a soakers corner; the weatherboards can be roughly mitred and then covered with an appropriate soaker. The soaker must cover a minimum of 15mm over the weatherboards. Use four 19 x 1.6mm annular grooved nails per soaker to fasten it to the weatherboards.


D IAGRAM


Page 38 of 72


TIMSPEC

AUCKLAND

CARTERTON

CHRISTCHURCH



30 Kent Street



Ph: (09) 620-0260

Ph: (06) 379-9381

Ph: (03) 341-0242


Fax: (09) 620-0261

Fax: (06) 379-9382

Fax: (03) 341-0243


E XTERNAL 135° C ORNER D ETAILS S OAKERS C ORNER M ETHOD For a soakers corner; the weatherboards can be roughly mitred and then covered with an appropriate soaker. The soaker must cover a minimum of 15mm over the weatherboards. Use four 19 x 1.6mm annular grooved nails per soaker to fasten it to the weatherboards.


D IAGRAM


Page 39 of 72


TIMSPEC

AUCKLAND

CARTERTON

CHRISTCHURCH



30 Kent Street



Ph: (09) 620-0260

Ph: (06) 379-9381

Ph: (03) 341-0242


Fax: (09) 620-0261

Fax: (06) 379-9382

Fax: (03) 341-0243


I NTERNAL 90° C ORNER D ETAILS S CRIBED

AND

N OTCHED C ORNER

M ETHOD For Scribed and Notched corners use a 90 x 90mm Internal Corner (hemmed) Flashing behind the corner (over the cavity battens). Then cut a scribe out of one weatherboard and notch it so that the other weatherboard fits into it.

I MAGE

Note: Top boards suppressed for clarity


Page 40 of 72


TIMSPEC

AUCKLAND

CARTERTON

CHRISTCHURCH



30 Kent Street



Ph: (09) 620-0260

Ph: (06) 379-9381

Ph: (03) 341-0242


Fax: (09) 620-0261

Fax: (06) 379-9382

Fax: (03) 341-0243



AND

(C ONTINUED )

N OTCHED C ORNER (C ONTINUED )

D IAGRAM


Page 41 of 72


TIMSPEC

AUCKLAND

CARTERTON

CHRISTCHURCH



30 Kent Street



Ph: (09) 620-0260

Ph: (06) 379-9381

Ph: (03) 341-0242


Fax: (09) 620-0261

Fax: (06) 379-9382

Fax: (03) 341-0243


I NTERNAL 90° C ORNER D ETAILS

(C ONTINUED )

I NTERNAL M OULDING C ORNER M ETHOD For an Internal Moulding corner use a 90 x 90mm Internal Corner (hemmed) Flashing behind the corner (over the cavity battens). Then cut a 39 x 39mm Dressed Four Sides moulding to fit the height of the corner and butt the weatherboards up to it.

I MAGE


Page 42 of 72


TIMSPEC

AUCKLAND

CARTERTON

CHRISTCHURCH



30 Kent Street



Ph: (09) 620-0260

Ph: (06) 379-9381

Ph: (03) 341-0242


Fax: (09) 620-0261

Fax: (06) 379-9382

Fax: (03) 341-0243


I NTERNAL 90° C ORNER D ETAILS

(C ONTINUED )

I NTERNAL M OULDING C ORNER (C ONTINUED ) D IAGRAM


Page 43 of 72


TIMSPEC

AUCKLAND

CARTERTON

CHRISTCHURCH



30 Kent Street



Ph: (09) 620-0260

Ph: (06) 379-9381

Ph: (03) 341-0242


Fax: (09) 620-0261

Fax: (06) 379-9382

Fax: (03) 341-0243



AND

N OTCHED C ORNER

M ETHOD For Scribed and Notched corners use a 90 x 90mm Flashing behind the corner (over the cavity battens). Then cut a scribe out of one weatherboard and notch it so that the other weatherboard fits into it.


Page 44 of 72


TIMSPEC

AUCKLAND

CARTERTON

CHRISTCHURCH



30 Kent Street



Ph: (09) 620-0260

Ph: (06) 379-9381

Ph: (03) 341-0242


Fax: (09) 620-0261

Fax: (06) 379-9382

Fax: (03) 341-0243



AND

(C ONTINUED )

N OTCHED C ORNER (C ONTINUED )

D IAGRAM


Page 45 of 72


TIMSPEC

AUCKLAND

CARTERTON

CHRISTCHURCH



30 Kent Street



Ph: (09) 620-0260

Ph: (06) 379-9381

Ph: (03) 341-0242


Fax: (09) 620-0261

Fax: (06) 379-9382

Fax: (03) 341-0243


B OTTOM P LATE (B ASE

OF

W ALL ) D ETAILS

C ONCRETE S LAB - ON -G ROUND M ETHOD Wall framing is to be separated from the concrete slab by a damp-proof-course (DPC). Minimum 150mm from floor level to pavings (or 225mm to uncovered ground). Ground to be sloped (minimum 1:30) to carry water away from building


Page 46 of 72


TIMSPEC

AUCKLAND

CARTERTON

CHRISTCHURCH



30 Kent Street



Ph: (09) 620-0260

Ph: (06) 379-9381

Ph: (03) 341-0242


Fax: (09) 620-0261

Fax: (06) 379-9382

Fax: (03) 341-0243



OF

W ALL ) D ETAILS

(C ONTINUED )

C ONCRETE S LAB - ON -G ROUND (C ONTINUED ) D IAGRAM


Page 47 of 72


TIMSPEC

AUCKLAND

CARTERTON

CHRISTCHURCH



30 Kent Street



Ph: (09) 620-0260

Ph: (06) 379-9381

Ph: (03) 341-0242


Fax: (09) 620-0261

Fax: (06) 379-9382

Fax: (03) 341-0243



OF

W ALL ) D ETAILS

(C ONTINUED )

T IMBER F LOOR M ETHOD Wall framing is to be separated from the foundation by a damp-proof-course (DPC). Minimum 150mm from top of foundation wall to pavings (or 225mm to uncovered ground). Ground to be sloped (minimum 1:30) to carry water away from building


Page 48 of 72


TIMSPEC

AUCKLAND

CARTERTON

CHRISTCHURCH



30 Kent Street



Ph: (09) 620-0260

Ph: (06) 379-9381

Ph: (03) 341-0242


Fax: (09) 620-0261

Fax: (06) 379-9382

Fax: (03) 341-0243



OF

W ALL ) D ETAILS

(C ONTINUED )

T IMBER F LOOR (C ONTINUED ) D IAGRAM


Page 49 of 72


TIMSPEC

AUCKLAND

CARTERTON

CHRISTCHURCH



30 Kent Street



Ph: (09) 620-0260

Ph: (06) 379-9381

Ph: (03) 341-0242


Fax: (09) 620-0261

Fax: (06) 379-9382

Fax: (03) 341-0243


E NCLOSED D ECK D ETAILS G ENERAL

DETAILS

Careful forward planning is required to ensure that an enclosed deck will meet all requirements.

Enclosed decks may only be up to 40 m2 in area and there needs to be a minimum 100mm from the finished deck surface height to the internal flooring height. Refer to E2/AS1 for other requirements including drainage and surface fall.

Cladding must finish a minimum 35mm from the finished decking surface and have a 10mm drip edge.

Butyl rubber or EPDM rubber is to be used as a deck membrane and it must have a fully supported 150mm upstand. Refer to the deck membrane supplier as to whether timber or tiles duck boards can be used on raised feet on the membrane. Note: If using duck boards forward planning is required to ensure that cladding finishes a minimum 35mm above the finished deck surface.

Refer to the following two diagrams for the base of wall details.


Page 50 of 72


TIMSPEC

AUCKLAND

CARTERTON

CHRISTCHURCH



30 Kent Street



Ph: (09) 620-0260

Ph: (06) 379-9381

Ph: (03) 341-0242


Fax: (09) 620-0261

Fax: (06) 379-9382

Fax: (03) 341-0243


E NCLOSED D ECK D ETAILS

(C ONTINUED )

C ONCRETE S UBSTRATE D IAGRAM


Page 51 of 72


TIMSPEC

AUCKLAND

CARTERTON

CHRISTCHURCH



30 Kent Street



Ph: (09) 620-0260

Ph: (06) 379-9381

Ph: (03) 341-0242


Fax: (09) 620-0261

Fax: (06) 379-9382

Fax: (03) 341-0243


E NCLOSED D ECK D ETAILS

(C ONTINUED )

P LYWOOD S UBSTRATE D IAGRAM


Page 52 of 72


TIMSPEC

AUCKLAND

CARTERTON

CHRISTCHURCH



30 Kent Street



Ph: (09) 620-0260

Ph: (06) 379-9381

Ph: (03) 341-0242


Fax: (09) 620-0261

Fax: (06) 379-9382

Fax: (03) 341-0243


T OP P LATE (T OP

OF

W ALL ) D ETAILS

F LAT S OFFIT M ETHOD Run a cavity batten horizontally along the top of the wall to seal the top of the cavity and to prevent moisture/vapour transfer from the wall cavity into the roof cavity. Fit a 42 x 19mm D4S Moulding tight up against the soffit lining.

D IAGRAM


Page 53 of 72


TIMSPEC

AUCKLAND

CARTERTON

CHRISTCHURCH



30 Kent Street



Ph: (09) 620-0260

Ph: (06) 379-9381

Ph: (03) 341-0242


Fax: (09) 620-0261

Fax: (06) 379-9382

Fax: (03) 341-0243


T OP P LATE (T OP

OF

W ALL ) D ETAILS

(C ONTINUED )

A NGLED S OFFIT M ETHOD Run a cavity batten horizontally along the top of the wall to seal the top of the cavity and to prevent moisture/vapour transfer from the wall cavity into the roof cavity. Fit a 42 x 19mm D4S Moulding tight up against the soffit lining.


Page 54 of 72


TIMSPEC

AUCKLAND

CARTERTON

CHRISTCHURCH



30 Kent Street



Ph: (09) 620-0260

Ph: (06) 379-9381

Ph: (03) 341-0242


Fax: (09) 620-0261

Fax: (06) 379-9382

Fax: (03) 341-0243


T OP P LATE (T OP

OF

W ALL ) D ETAILS

(C ONTINUED )

A NGLED S OFFIT (C ONTINUED ) D IAGRAM


Page 55 of 72


TIMSPEC

AUCKLAND

CARTERTON

CHRISTCHURCH



30 Kent Street



Ph: (09) 620-0260

Ph: (06) 379-9381

Ph: (03) 341-0242


Fax: (09) 620-0261

Fax: (06) 379-9382

Fax: (03) 341-0243


T OP P LATE (T OP

OF

W ALL ) D ETAILS

N O S OFFIT M ETHOD Run a cavity batten horizontally along the top of the wall to seal the top of the cavity and to prevent moisture/vapour transfer from the wall cavity to the roof cavity.

When boxed corners are used: Use a packer to provide a flush surface to mount the fascia onto so that fascia is flush with boxed corners. When soakers or mitred corners are used: A fillet can be used to provide a flat surface flush with the outside of the weatherboards to mount the spounting to.

Roofing must over hang the fascia by minimum of 50mm. An eaves flashing may be required in certain situations (for example in high and very high wind zones), the roofer is to determine if necessary and install.


Page 56 of 72


TIMSPEC

AUCKLAND

CARTERTON

CHRISTCHURCH



30 Kent Street



Ph: (09) 620-0260

Ph: (06) 379-9381

Ph: (03) 341-0242


Fax: (09) 620-0261

Fax: (06) 379-9382

Fax: (03) 341-0243


T OP P LATE (T OP

OF

W ALL ) D ETAILS

(C ONTINUED )

N O S OFFIT (C ONTINUED ) D IAGRAM


Page 57 of 72


TIMSPEC

AUCKLAND

CARTERTON

CHRISTCHURCH



30 Kent Street



Ph: (09) 620-0260

Ph: (06) 379-9381

Ph: (03) 341-0242


Fax: (09) 620-0261

Fax: (06) 379-9382

Fax: (03) 341-0243


P ARAPET /E NCLOSED B ALUSTRADE D ETAILS C APPING M ETHOD Wrap a continuous layer of building wrap over the framing (under the cavity battens).

Use a sloped packer continuously along the top of the parapet/enclosed balustrade to support the capping flashing.

Parapets are to be capped with a metal flashing that meets all of the following criteria: 

Capping is to have 50 year durability; and



No penetrations through the top of capping (fix through the side); and



Slope of top is to be minimum 5° (1:12); and



Capping is to be separated from timber by the use of roofing underlay or another suitable material; and



Capping is to have minimum 50mm cover over weatherboards (70mm for very high wind-zones); and



Capping is to have a „birds beak‟ style drip edge.

Enclosed balustrades must also comply with all the above criteria, except that cappings for enclosed balustrades only require 15 year durability (this is because they are easier to inspect).

E XPANSION J OINTS Metal cappings longer than 8 metres may require an expansion gap. Refer to E2/AS1 for details.


Page 58 of 72


TIMSPEC

AUCKLAND

CARTERTON

CHRISTCHURCH



30 Kent Street



Ph: (09) 620-0260

Ph: (06) 379-9381

Ph: (03) 341-0242


Fax: (09) 620-0261

Fax: (06) 379-9382

Fax: (03) 341-0243


P ARAPET /E NCLOSED B ALUSTRADE D ETAILS

(C ONTINUED )

C APPING (C ONTINUED ) D IAGRAM


Page 59 of 72


TIMSPEC

AUCKLAND

CARTERTON

CHRISTCHURCH



30 Kent Street



Ph: (09) 620-0260

Ph: (06) 379-9381

Ph: (03) 341-0242


Fax: (09) 620-0261

Fax: (06) 379-9382

Fax: (03) 341-0243


P ARAPET /E NCLOSED B ALUSTRADE D ETAILS I NTERSECTION

WITH

(C ONTINUED )

W ALL

D IAGRAM


Page 60 of 72


TIMSPEC

AUCKLAND

CARTERTON

CHRISTCHURCH



30 Kent Street



Ph: (09) 620-0260

Ph: (06) 379-9381

Ph: (03) 341-0242


Fax: (09) 620-0261

Fax: (06) 379-9382

Fax: (03) 341-0243



(C ONTINUED )

I NSTALLATION S TEP - BY - STEP

1: Cover the framed wall with building

2: Frame the balustrade/parapet

wrap.

3: Cover the balustrade/parapet with building wrap ensuring that‟s its one continuous piece over the top.

4: Apply battens to wall.

5: Apply cavity battens to

6: Fit a sloped packer to making sure it

balustrade/parapet.

extends all the way into the cavity of the wall.


Page 61 of 72


TIMSPEC

AUCKLAND

CARTERTON

CHRISTCHURCH



30 Kent Street



Ph: (09) 620-0260

Ph: (06) 379-9381

Ph: (03) 341-0242


Fax: (09) 620-0261

Fax: (06) 379-9382

Fax: (03) 341-0243



(C ONTINUED )

I NSTALLATION (C ONTINUED ) S TEP - BY - STEP

7: Fit corner flashings to corners.

8: Fix lower weatherboards to

9: Scribe and notch weatherboards on the

balustrade/parapet.

wall to the weatherboards on the balustrade/parapet.

10: Fix weatherboards to

11: Continue to scribe and notch

12: Fit triangular packers to top of

balustrade/parapet.

weatherboards on the wall to the

balustrade/parapet to give a solid surface

balustrade/parapet.

for capping.


Page 62 of 72


TIMSPEC

AUCKLAND

CARTERTON

CHRISTCHURCH



30 Kent Street



Ph: (09) 620-0260

Ph: (06) 379-9381

Ph: (03) 341-0242


Fax: (09) 620-0261

Fax: (06) 379-9382

Fax: (03) 341-0243



(C ONTINUED )

I NSTALLATION (C ONTINUED ) S TEP - BY - STEP

13: Install an isolating layer of roofing

14: Install saddle flashing.

15: Apply two lines of sealant to saddle

wrap between timber and metal capping.

flashing in preparation for installing capping flashing.

16: Install capping, and seal to saddle

17: Scribe weatherboards to fit saddle

18: Install rest of weatherboards, scribing

flashing by riveting and using two lines

flashing.

weatherboards to fit over saddle flashing.

of sealant. © Timber Specialists Limited 2011

Page 63 of 72


TIMSPEC

AUCKLAND

CARTERTON

CHRISTCHURCH



30 Kent Street



Ph: (09) 620-0260

Ph: (06) 379-9381

Ph: (03) 341-0242


Fax: (09) 620-0261

Fax: (06) 379-9382

Fax: (03) 341-0243


P IPE P ENETRATION D ETAILS M ETHOD Cut a hole in the building wrap just large enough for the pipe. Pipe to be on 5° slope downward, so that any water in the cavity will run away from the building wrap (towards the weatherboard). Rest a bevelled packer on a noggin under the pipe to support it, and secure the pipe to the packer with a strap/webbing fastened with screws. Use flashing tape to create a flange that is adhered to both the building wrap and the pipe. Lap along the building wrap for 100mm in all directions and 20mm along the pipe. Cut a 6-10mm diameter hole through internal lining and weatherboard (so that there is 35mm between pipe and internal lining/weatherboard) and apply a suitable sealant over PEF rod to make weathertight.

I MAGE


Page 64 of 72


TIMSPEC

AUCKLAND

CARTERTON

CHRISTCHURCH



30 Kent Street



Ph: (09) 620-0260

Ph: (06) 379-9381

Ph: (03) 341-0242


Fax: (09) 620-0261

Fax: (06) 379-9382

Fax: (03) 341-0243


P IPE P ENETRATION D ETAILS

(C ONTINUED )

D IAGRAM


Page 65 of 72


TIMSPEC

AUCKLAND

CARTERTON

CHRISTCHURCH



30 Kent Street



Ph: (09) 620-0260

Ph: (06) 379-9381

Ph: (03) 341-0242


Fax: (09) 620-0261

Fax: (06) 379-9382

Fax: (03) 341-0243


M ETER B OX H EAD M ETHOD An additional layer of building wrap is required to lap over the „Z‟ flashing to direct water outwards from the wall. The „Z‟ flashing is to be riveted and sealed to the meterbox top flashing with minimum 10mm cover. The top flashing must also be riveted and sealed to the meterbox.

It is important to install a flexible air seal to all sides of the meterbox. This must be a selfexpanding polyurethane foam or sealant installed over a closed cell polyethylene foam (PEF) backing rod or a similar backing rod. The self-expanding polyurethane foam or sealant used, must meet one of the following requirements: 

Type F, Class 20LM of ISO 11600; or



Class 25LM of ISO11600; or



Low modulus Type II, Class A of Federal Specification TT-S-00230c.


Page 66 of 72


TIMSPEC

AUCKLAND

CARTERTON

CHRISTCHURCH



30 Kent Street



Ph: (09) 620-0260

Ph: (06) 379-9381

Ph: (03) 341-0242


Fax: (09) 620-0261

Fax: (06) 379-9382

Fax: (03) 341-0243


M ETER B OX

(C ONTINUED )

H EAD (C ONTINUED ) D IAGRAM


Page 67 of 72


TIMSPEC

AUCKLAND

CARTERTON

CHRISTCHURCH



30 Kent Street



Ph: (09) 620-0260

Ph: (06) 379-9381

Ph: (03) 341-0242


Fax: (09) 620-0261

Fax: (06) 379-9382

Fax: (03) 341-0243


M ETER B OX

(C ONTINUED )

J AMB D IAGRAM


Page 68 of 72


TIMSPEC

AUCKLAND

CARTERTON

CHRISTCHURCH



30 Kent Street



Ph: (09) 620-0260

Ph: (06) 379-9381

Ph: (03) 341-0242


Fax: (09) 620-0261

Fax: (06) 379-9382

Fax: (03) 341-0243


M ETER B OX

(C ONTINUED )

S ILL D IAGRAM


Page 69 of 72


TIMSPEC

AUCKLAND

CARTERTON

CHRISTCHURCH



30 Kent Street



Ph: (09) 620-0260

Ph: (06) 379-9381

Ph: (03) 341-0242


Fax: (09) 620-0261

Fax: (06) 379-9382

Fax: (03) 341-0243


S ITE C LEAN - UP After completion the installer is to leave the site in a clean and tidy manner, including: 1. Replacing or repairing any damaged or marked items; and 2. Removing all rubbish, debris and unused items from the building site.

Any treated and/or coated timber off-cuts or rubbish are to be disposed with according to local council requirements. Note: Accoya ® wood is not treated with dangerous chemicals and can be disposed by burning, or as untreated timber at refuse sites.


Page 70 of 72


TIMSPEC

AUCKLAND

CARTERTON

CHRISTCHURCH



30 Kent Street



Ph: (09) 620-0260

Ph: (06) 379-9381

Ph: (03) 341-0242


Fax: (09) 620-0261

Fax: (06) 379-9382

Fax: (03) 341-0243


O N - GOING M AINTENANCE It is the building owner‟s responsibility to ensure that the cladding system receives regular maintenance so that it continues to perform at its required level.

M AINTENANCE I NTERVAL For most areas (especially coastal, industrial, and inner-city area) maintenance should be performed at least once every 12 months. Maintenance may be required as often as once every six months, depending on the level of pollution, dirt and dust in the environment.

For sheltered, inland locations, maintenance should be performed once every 12 to 18 months.

M AINTENANCE R EQUIREMENTS Regular maintenance is to include the following 5 steps: 1. Wash all exterior surfaces with low pressure water to remove dust, dirt and other contaminants; a. Extra attention should be given to areas that are not exposed to rain such as sheltered areas below eaves; b. Do not direct high pressure water at any part of the cladding system, especially sensitive junctions such as joinery surrounds and other flashings were you must avoid forcing water past anti-capillary gaps and flashings into the wall cavity.

2. Use a soft bristle brush or broom with water and an appropriate cleaning agent (refer to paint manufacturer for correct cleaning agent specific to their paint system) to remove stubborn or persistent dirt and contaminants.


Page 71 of 72


TIMSPEC

AUCKLAND

CARTERTON

CHRISTCHURCH



30 Kent Street



Ph: (09) 620-0260

Ph: (06) 379-9381

Ph: (03) 341-0242


Fax: (09) 620-0261

Fax: (06) 379-9382

Fax: (03) 341-0243


O N - GOING M AINTENANCE

(C ONTINUED )

M AINTENANCE R EQUIREMENTS (C ONTINUED )

3. Inspect all surfaces and junctions for signs of damage, wear-and-tear, or coating breakdown. Where coating surface has broken or remedial action is required: a. Remove all damaged or loose coating (may involve sanding back to solid timber); b. Spot prime any bare timber (if repairing paint); c. Recoat with minimum two coats of the product originally used to initially overcoat the timber. 4. Repairing or replacing any damaged or deteriorated items in order to preserve the weathertightness of the building: a. Small isolated areas of dry rot in timber can be cut out and filled then primed and coated; b. For larger areas of deterioration: remove and replace either the damaged section or the entire board for any deteriorated timber boards either (includes scribers, cover boards and weatherboards). Prime and coat the replacements as required; c. Other items (soakers, flashings and cappings) may need to be replaced in their entirety.

5. Where a coating is applied, periodic recoating is required to ensure the integrity of the coating is sustained. This will generally mean applying another exterior coat every 4 to 10 years (dependant on the coating used and building location) after washing and maintenance.


Page 72 of 72


TIMSPEC

AUCKLAND

CARTERTON

CHRISTCHURCH



30 Kent Street



Ph: (09) 620-0260

Ph: (06) 379-9381

Ph: (03) 341-0242


Fax: (09) 620-0261

Fax: (06) 379-9382

Fax: (03) 341-0243

Timspec CERTCLAD Bevel Back Cavity System Installation Manual

Recommend Documents