According to FEMA, a foot of heavy, wet snow can weigh more than 20 pounds per square foot, which is right at the minimum requirement that most building codes require for roof live loads.
It will probably only fling enough moisture northward for a coating to a couple of inches of snow in the D.C. area. It’s also possible that it passes so far south that no snow falls locally.
Snow is moving into the area, bringing the possibility of a coating to 2 inches. In terms of impacts, this is a low impact event. We're expecting snow to accumulate mainly on grassy surfaces and ...
according to the Federal Emergency Management Agency (FEMA), and a snow roof rake is the most effective means of removing that weight. The heavier the snow, the greater the risk of structural dama ...
NOW BE PREPARED FOR SOME LIGHT SNOW TO START TO MOVE ON IN LOOKING FOR JUST A LIGHT COATING TO POSSIBLY UP TO TWO INCHES. I THINK MUCH OF THE SUSQUEHANNA VALLEY IS JUST PICKING UP AN INCH OF SNOW ...
“Snow and ice accumulations on roofs cause a loading which can cause roof collapse when the roof is not strong enough to resist the load,” says Brian Holmes, University of Wisconsin-Extension ...