You Need to Know Your Roof's 'Snow Load'
by Becca Lewis from Lifehacker on (#67T6R)
Most roofs constructed after modern regulations were passed in the U.S. in 1988 are built to withstand a certain amount of extra weight in the form of snow. Even older roofs usually have some extra capacity to allow for snow. But sometimes, larger amounts of snow, or wet or compacted snow can exceed the capacity of...