Snow On Roof Problems

This table says that roof snow loads equal 7 times the ground snow load.

Snow on roof problems.

To find the ground snow load we use section 1303 1700 of the minnesota administrative rules. Built up snow and ice. Best options for keeping snow on the roof at a minimum. Here are some common roof problems to look out for.

Stay dry roofing provides professional snow removal services to ensure that your roof won t have any issues with ice dams leaks or too much weight. The required roof snow loads for minnesota aren t clearly spelled out anywhere but the numbers can be found by using table r301 2 1 of the minnesota administrative rules. Problems typically start when you have more than 5cm 2in of ice or 70cm 2ft of heavy snow. It extends outward in.

Besides causing new problems snow load and the freeze thaw cycle can further loosen already unsecured roof flashing dislodge shaky shingles and pry open gutter seams where caulk has already broken. Evidence of sagging leaking or cracking. A roof this thick will be able to support any amount of snow barring an avalanche and you will have nothing to worry about. Ice dams ice buildup in winter this is a common problem in winter where snow melts down from the top of the roof and refreezes at the overhangs where the roof is cooler.

For this reason it is a good idea to have a roof inspection and maintenance job done before the winter season. The roof deck collects the snow load and transfers the weight to the rafters. Making existing problems worse. Water can then back up into your house causing extreme damage.

The roof will be far better prepared to deal with the brutality of winter especially during more severe storms. This type of damage can be prevented with a 3 step approach. Snow that s left to pile up can cause a variety of issues including structural harm ice dams or even a full or partial roof collapse. For any rafter the portion of the roof deck that transfers this load is the tributary area.