Any water that seeps through cracked grout lines can easily wick under the liner... More
Concurrent with the expiration of OSHA's temporary enforcement measures, the agency has cracked down hard on roofing safety violations, levying costly citations and fines to roofers across the country. More
Firing 72 barrels from a dozen "hail cannons," researchers sent some 10,000 ice balls onto the roof of a full-scale house. It was the first-ever indoor hailstorm, designed to evaluate how well roofing and other building materials can withstand the ravages of a full-blown hailstorm. More
