1.1 This specification covers vapor retarders for thermal insulation, specifically, flexible materials with permeance of 0.10 perm 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:
- 10/15/2017
- Number of Pages:
- 4
- File Size:
- 1 file , 82 KB
- Redline File Size:
- 2 files , 150 KB
