October 2002
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China Roofing & Waterproofing 2002 participants saw a Beijing construction project's foundation waterproofed. A Carlisle APP-modified bitumen membrane was applied to five mud slabs.

From the article: International Corner
Issue: October 2002



China Roofing & Waterproofing 2002 participants saw a Beijing construction project's foundation waterproofed. A Carlisle APP-modified bitumen membrane was applied to five mud slabs.

From the article: International Corner
Issue: October 2002



Baseball-sized hail was produced during a hailstorm in Scottsbluff, Neb., in 2001.

Photo courtesy of Ed Cochron, an independent sales representative from Cheyenne, Wyo.

From the article: A different take on shingles
Issue: October 2002



Damage such as this can be common following a hailstorm. State Farm Insurance's fifth-largest payout for a single catastrophic event was in 1995—a hailstorm caused claims totaling nearly $245 million.

Photo courtesy of Ed Cochron, an independent sales representative from Cheyenne, Wyo.

From the article: A different take on shingles
Issue: October 2002



Impact-resistant products in Scottsbluff, Neb., outperformed State Farm Insurance's expectations.

Photo courtesy of Ed Cochron, an independent sales representative from Cheyenne, Wyo.

From the article: A different take on shingles
Issue: October 2002



A substantial amount of roof deck material blew off these hangars. At one hangar, many trusses also were blown away. Two nearby fighter aircraft appeared to be damaged, as well.

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

From the article: Honing in on hangars
Issue: October 2002



This hangar had an aggregate-surfaced built-up membrane over two insulation layers; the first layer was mechanically attached to the deck. The 12-inch- (305-mm-) wide gutter was supported on heavy steel brackets, which rested on and extended out about 4 feet (1 m) onto the deck. The straps were screwed to the deck, but the deck did not have enhanced welding to the support structure to account for the uplift load the gutter transferred to the deck. As a result, large areas of the deck blew off in one corner and along the wall on the opposite side.

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

From the article: Honing in on hangars
Issue: October 2002



This hangar had a modified bitumen membrane adhered over two insulation layers; the first insulation layer was mechanically attached to the metal deck. The wide gutter was not designed for wind uplift. All the gutter's wind load was transferred to the edge nailer, but the nailer attachment did not account for the additional load. The nailer lifted and caused the roof membrane to peel.

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

From the article: Honing in on hangars
Issue: October 2002



A fully adhered EPDM membrane was installed over mechanically attached polyisocyanurate insulation over a vapor retarder on a metal deck. The hangar's sides had a parapet, and the ends had metal edge flashings. Air was able to enter under the edge flashings at the profiled metal wall panels and cause the membrane and insulation facer to separate from the foam insulation. A substantial amount of membrane detached from the insulation, and one of thefield seams ruptured (a secondary failure that occurred after the membrane detached).

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

From the article: Honing in on hangars
Issue: October 2002


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