Technical Statement
Product Description
Scope of use
Cedarscreen Rusticated is compliant as both a direct fixed and cavity fixed wall cladding material with fixing methods in accordance with Acceptable Solution E2/AS1. Horizontal weatherboards shall be either direct fixed or fixed over a drained cavity, in accordance with the risk categories as shown in Clause 3.0 and Table 1, 2 and 3 E2/AS1.
Scope of use conforms to Acceptable Solution E2/AS1 Paragraph 1.1
- Has a risk score of 0-20 in line with tables 1, 2 and 3 of Acceptable Solution E2/AS1
- Timber framing to comply with NZS 3604-2011 Timber framed buildings - NZS 3604 Wind Zones
- Aluminium windows and doors joinery to comply with NZS 4211-2008- Specification for performance windows
- Materials, products and processes contained within the building scope of NZS 3604-2011
New Zealand Building Code (NZBC)
The product will, if employed in accordance with the supplier's installation and maintenance requirements, assist with meeting the following provisions of the building code:
- Clause B1 Structure: Performance B1.3.1, B1.3.2, B1.3.3(a), B1.3.3(h), B1.3.3(j), B1.3.3(q), B1.3.4, B1.3.4(a), B1.3.4(b), B1.3.4(c), B1.3.4(d), B1.3.4(e)
- Clause B2 Durability: Performance B2.3.1(b), B2.3.2, B2.3.2(a), B2.3.2(b)
- Clause E2 External moisture: Performance E2.3.2
- Clause F2 Hazardous building materials: Performance F2.3.1
Notes
B2 Durability E2 External moisture
Supporting evidence
The product has and can make available the following additional evidence to support the above statements:
Product Criteria
Design requirements
Profiles:Standard profile range RK 67 and 68.Architectural profile range RKA 700 to 716.
Available as a direct fixed system or on a cavity.
Can be supplied witheither BSF Band Sawn Face.• DF Dressed Face or DFS Dressed Faced Sanded (it is recommended dressed face weatherboards are sanded prior to applying coating products).
A range of pigmented wood oil products available applied by our FactoryOil pre-coat facility.
Installation requirements
Cedarscreen Rusticated must only be installed by a registered LBP (Licenced Building Practitioner).
Fixing methods shall be in accordance with Clause 9.4 E2/AS1.
Please refer to installation brochure for detailed instructions and drawings.
Maintenance requirements
Once fixed, a second coat of WoodOil should be applied. This should be done between 30 and 90 days following the first coat.
Re-application of Dryden WoodOil™ should be approximately two years after the second coat to the areas where the surface exhibits signs of losing capability to “bead water”, colour tone is faded or oxidised - principally northern exposed faces. This coating interval may be extended when applying to timber protected in better environments e.g. shaded soffits.
For ongoing preservation, one coat of WoodOil should be applied up to every 5 years, subject to the timber having appropriate initial coats. We recommend annual soft washing of the surface with clean water to remove surface contaminants (dust, pollen, etc.) This should also be done prior to any re-coats of WoodOil, if in good condition. If for any reason maintenance has not been kept up, a stronger chemical wash may be required prior to re-coating with WoodOil.
Environmental
Western Red Cedar is also favoured by conservationists as the forests of British Columbia, from where our cedar is sourced, are well-managed and certified as such. All our producers carry certification under SFI, CSA, FSC or PEFC. Please refer to the following site for more information regarding this: www.wrcea.org/environment-sustainability/intro.htm.
Relationships
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CodeMark by Certmark
CMA-CM40131 |
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Date last validated:
11 September 2015 |
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Date last updated:
11 September 2015 |