The Importance of Snow Retention on Metal Roofs

It is important to realize the importance of snow retention on any sloped roof. In particular, metal roofs are extremely susceptible to problems with accumulating snow. When supporting a layer of snow, the panels of a metal roof may increase in temperature due to heat from the home’s attic. In turn, this can cause a layer of water to develop between the snowpack and the metal panels. Due to the low friction nature of the panels, it becomes incredibly easy for large sections of the snowpack to slide off of the roof. This problem has been the source of huge liability claims against building owners, as sliding snow can cause damage to anyone or anything unfortunate enough to be located below.

A snow retention system is the most effective way to mitigate sliding snow. These systems work by preventing snow from sliding off in large masses. In effect, they let the snow pack melt off gradually. This limits the chance of large snow dumps and helps reduce the risk of ice dams.

In addition to protecting underlying vegetation, other property and people, a snow retention system offers another benefit during the cold winter months. A retained layer of snow acts as an insulating component for a home. Protecting against the cold exterior, this can help save on heating costs throughout the winter.

Fortunately, installing a retention system is a relatively easy process. Snow retention companies take into account a few factors, such as average amount of snow at the location, snow load, pitch of the roof, type of roof and sheathing thickness, strength of the snow bracket, and type of fasteners. With this information, an effective system can be quickly designed. Most companies also offer a wide range of products that can be applied on steel, copper and zinc roofs.

Although a snow retention system is an additional cost for a roof, it is an important consideration for anyone who owns a metal roof or is looking to install one.

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