DuPont Tyvek Breathable Self-supporting Fire Retardant Synthetic Roof Underlays
- Abbreviation
- CMA-CM40146-I01-R03
- Valid from
- 9/06/2015
- Information provider
- Ministry of Business, Innovation and Employment
- Author
- CertMark International
- Information type
- Product Certificate (CodeMark)
- Format
Description
DuPontTM Tyvek® Breathable Self-Supporting Fire Retardant Synthetic Roof Underlays are synthetic building underlays for use under roof claddings.
The underlays are spun bonded high-density polyethylene, laminated to a non-woven polypropylene sheet. The product is coloured grey on the top face and white on the bottom face.
Trade Names:
DuPontTM Tyvek® Supro (2506B) DuPontTM Tyvek® Supro Plus (2506B) DuPontTM Tyvek® Pro (2508B)
Scope
For use under roof claddings on timber-framed and steel-framed buildings with a roof pirtch of 3 degrees or more to limit wind entry and assist with moisture management.
Scope limitations are described in the DuPont Tyvek Supro/Suproplus/Pro Installation Guide - New Zealand, version 28 Feb -17.
Must be separated from heat sources.