Photo gallery

2002 Gold Circle Award winner Kirberg Roofing Inc. donated $100,000 worth of materials and labor for the installation of the South City YMCA's roof system in St. Louis.

Photos courtesy of Kirberg Roofing Inc., St. Louis

2002 Gold Circle Award winner Kirberg Roofing Inc. donated $100,000 worth of materials and labor for the installation of the South City YMCA's roof system in St. Louis.

Photos courtesy of Kirberg Roofing Inc., St. Louis

Randy Denchfield's church annually sponsors a house from Rebuilding Together with Christmas in April's reject bin. Pictured is a house that was repaired in one day.

Photo courtesy of Denchfield Roofing Corp., Silver Spring, Md.

Randy Denchfield and his church are committed to helping their community.

Photo courtesy of Denchfield Roofing Corp., Silver Spring, Md.

The New Mexico Roofing Contractors Association (NMRCA) raised $6,000 for Kristin, a child NMRCA sponsored through the Make-A-Wish Foundation of New Mexico. Pictured from left to right are Kristin; Amy Gillespie, executive director of the Make-A-Wish Foundation of New Mexico; Kristin's mother; and Kristin's two brothers.

Photo courtesy of the Make-A-Wish Foundation of New Mexico, Albuquerque

Wayne, N.J.-based GAF Materials Corp. and U.S. Intec volunteers combined efforts for a corporate charity event through East Valley Habitat for Humanity, Chandler, Ariz.

Photo courtesy of GAF Materials Corp., Wayne, N.J.

A typical site-built curb used for skylight installation.

Source: The NRCA Roofing and Waterproofing Manual, Fifth Edition

Schematic diagram of a laminated asphalt shingle depicting dimensions measured during laboratory analysis.

Source: NRCA

A precast concrete twin-tee deck panel was lifted and thrown back toward the center of this roof. Three large roll-up doors collapsed, which increased the internal air pressure in the building and uplift load on the deck. Although precast deck panels are heavy, they need to be anchored to resist large uplift loads.

Photo courtesy of TLSmith Consulting Inc., Rockton, Ill.