1.1 This specification covers asphalt-saturated and coated organic felt base sheet with fine mineral surfacing on the top side, with or without perforations, for use as the first ply of a built-up roof. When not perforated this sheet may be used as a vapor retarder under roof insulation.
1.2 The values stated in inch-pound units are to be regarded as the standard.
Product Details
- Published:
- 11/10/1997
- Number of Pages:
- 3
- File Size:
- 1 file , 26 KB
