The Asphalt Roofing Manufacturers Association (ARMA) has partnered with ASTM International to develop Product Category Rules (PCR) for asphalt roofing in North America.  

Glass breaks. When it reaches a certain stress level it doesn’t yield, it shatters, without warning or predictable focal point. 

GAF has joined with Reed Construction Data and Hanley Wood to help renovate and expand an abandoned building for use by Sasha Bruce Youthwork (SBY).

1807.3 Waterproofing required. Where the ground-water investigation required by Section 1802.2.3 indicates that a hydrostatic pressure condition exists.

Section 1807.2 Dampproofing required. Where hydrostatic pressure will not occur as determined by Section 1802.2.3, floors and walls for other than wood foundation systems shall be dampproofed in accordance with this section.