! j I I - National Roofing Contractors Association

Built-up RoofingGeneral information with test description and suggested values as specified in NBS BSS #55/1974GP-4 AGS-P- GA-4- AGS-4- GP-4- AGS-P- GA-3- GA-3- GA-4- AGS-4- GA-4- AGS-4- GA-4- AGS-4- GA-H+ AGS-H+ GA-H+ AGS-H+ GP-H+ AGS-P-HCoG 4-C-G C-G CoG W-G 4-W-G w-s W-M W-M W-M f-M f-M CoM CoM 3-W-G 3-W-G 3-W-S 3-W-S 3-W-G +3-W-G~~~~~~~~~~~~~~~~~~~~X X X X X X X X X X X XX X X X X X X X X X X X X XX X X X X X~~~~~~~~~~~~~~~~~~~~4 4 4 4 4 4 3 3 4 4 4 4 4 4 4 4 4 4 4 41 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1444433212222223333331 1 1 1 1 1 1X X X X X X X X X X X X X X X X X X X XX X X X X XX X X X X X X X X X X X X X X X X X XX X X X X X X X X X4 4 4 4 4 4 4 4 4 4 4 43 3 3 3 3 3 3 3 3 3 3 3x x x x x x xx x x x x x xx x x x x x x6.40 6.40 5.80 5.80 5.80 5.801.700.90 1.30 1.30 1..20 1.20 1.30 1.30~~~~~~~~~~~~~~~~~~~~1962 1962 1983 1983 1980 1980 1980-~-~-~---~~~-~-~-~-~~"" 23