A Roof For The Cold

Posted on: 4 November 2015

When you choose a roofing material for your home, you need to think about more than the initial cost. For example, if you live in an area that receives a lot of snow, you have to think about how your roof will stand up to the snow. Asphalt shingles may be hugely popular because of their low initial cost, but they are not the best choice for helping your home to cope with snow. Metal roofing, on the other hand, will have the ability to shed snow, which can help your home to weather the winter. 

Dangers of Snow

Snow can cause problems for your home in two ways. For one, if your roof has a rough surface, it will create friction with the snow, which will hold it in place. As layer after layer of snow builds up on your roof, the weight placed on your home increases to the point that you have to worry about roof collapse.

A second danger arises as the heat escaping from your home melts the lower layer of snow. The meltwater thus created will run down your roof until it hits your eaves. Because there is nothing but air under your eaves, they will be colder than other parts of your roof, and the meltwater will freeze. As layer after layer of ice builds up, it can create a dam that allows water to pool up over the body or your roof, and water can then get under your shingles and cause leaks. Either snow build-up or ice dams can cause serious problems. 

The Benefits of Metal Roofing

Metal has a low-friction surface that when used in a roofing application will allow snow to slide right off of your roof. Once the bottom layer of snow begins to melt, the snow will lose its hold on your roof and slough off. Thus, you won't have to worry about roof collapse or ice dams. 

If you use shingles on your home, you may face the need to climb up on your roof to shovel snow off. You might also have to retrofit your home with warming cables or expensive underlayment materials. With metal roofing, your roofing will protect your home from the snow all on its own. Metal roofing is more expensive than other common materials, such as asphalt shingles, but it will protect your home better, so you get more value for your money. Thus, metal roofing is the right choice for someone who has to cope with heavy snows. 

To learn more, contact a roofer in your area.