Author : United States. National Bureau of Standards
Publisher :
Page : 4 pages
File Size : 34,90 MB
Release : 1924
Category : Coal-tar products
ISBN :
Book Description
This roofing shall consist of five layers or piles of coal-tar saturated rag felt cemented together with coal-tar pitch and surfaced with slag, gravel, or similar surfacing materials, as called for in the proposal for the work. Flashings of the type required under the specification for the building shall be included and shall conform to United States government master specification for flashings no. 156 or 157.