Nu-Wall BRANZ Appraisals
BRANZ Appraisal #550 – This relates to installation of Nu-Wall weatherboards in a horizontal orientation over a drained & vented cavity. The Appraisal supports application of the product to the full extent of E2/AS1; i.e. up to risk score 20 per Section 3 of the Clause.
BRANZ Appraisal #556 – This relates to direct-fixed installation of Nu-Wall weatherboards in a vertical orientation. The Appraisal supports application of the product to the full extent of E2/AS1; i.e. up to risk score 20 per Section 3 of the Clause. Installed in this manner per our published specifications, the cladding mimics a cavity-type installation, the space behind the extruded profiles being pressure-equalised with the exterior via venting in the channel which locates the cladding at the bottom.
BRANZ Appraisal #557 – This relates to direct-fixed installation of Nu-Wall weatherboards in a horizontal orientation. The Appraisal supports application of the product up to risk score 12 per Section 3 of E2/AS1.
To relate the BRANZ-appraised applications of the product back to the Acceptable Solution, it could be said that –
- When installed in a horizontal orientation the product performs similarly to bevel-back weatherboards.
- When installed in a vertical orientation the product performs similarly to vertically-applied corrugated metal.
These Appraisals are available for downloading from BRANZ’ website. They are also available for downloading from the Document Downloads page of our website at www.nu-wall.co.nz, along with our standard details relating to all three installation methods.
Tags: BRANZ

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