Look at roof design, snow load when assessing collapse risk
University of Minnesota Extension After the many recent roof collapses of agricultural buildings caused by excessive snow loads, we have been monitoring ...
Study: 10-year-old asphalt shingles don't protect against hurricane winds
“For a 10-year-old asphalt shingle roof at 60 mph winds, we can expect a one-in-12 chance of damage,” said Michael Newman, ...