Watertight Roof Underlay

Appraisal number 938
Issued
Last updated 8 Apr 2026
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Description

Watertight Roof Underlay is a synthetic building underlay for use under roof claddings. The product consists of a micro-porous water-resistant polypropylene film laminated between two layers of spun-bonded polypropylene and is coloured grey.

Consenting instructions

Always refer to the Appraisal in full and the technical literature.

Appraisal holder details

Techno Wrapping Systems Ltd

warehouse
PO Box 516, Silverdale, North Auckland 0944
phone_enabled 09 426 4748