1.1 This specification covers vapor retarders for thermal insulation, specifically, flexible materials with permeance of 0.15 perm (8.63 ng·Pa^-1 · s^-1 · m^-2) or lower and surface burning characteristics of 25 flame spread/50 smoke or lower. These materials are intended for use at surface temperatures of −20 to 150°F (−29 to 66°C). It does not cover mastics or barrier coatings applied in liquid form, nor materials intended for use as weather barriers.

Product Details

Published:

03/01/2023

Number of Pages:

4

File Size:

1 file , 81 KB

Redline File Size:

2 files , 150 KB

Note:

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