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:
- 03/01/2021
- Number of Pages:
- 4
- File Size:
- 1 file , 82 KB
- Redline File Size:
- 2 files , 150 KB
