With the recent cold snap across the U.S., it’s a good time to consider what can happen when a roof has accumulated a lot of snow or ice. After a cold snap passes through, some roofing repair may be needed.
If there are cooling, then warming, then cooling again situations in your area, the constant thawing then freezing conditions can cause icicles. Obviously, icicles dangling overhead can be a concern, but they also point to potential roofing problems.
The heat from your home or warmer daytime weather will melt the snow on your roof. Icicles can form if that thawing snow has no where to go. Clogged gutters or “ice dams” at the edge of your roof prevent the thawing snow from draining to the downspouts.
When this happens, that standing water or ice can creep back up and under your shingles. Once moisture gets under the shingles, it can start causing problems to the interior of your home. Unfortunately, once the ice dams have formed, there aren’t a lot options for removal.
Melting the ice dams with warm water will help reveal gutter clogs, but that can involve getting on a slick roof or trying to hook your hose up to a kitchen faucet. If you are expecting more cold weather, a quick solution is to call an experienced professional to remove the ice safely.
Another way to prevent ice dams from forming is to remove the snow (the source of the standing water) from your roof before it can melt. If you have several inches of snow on your roof – snow that isn’t going anywhere – you may want to invest in a roof rake. This will allow you to remove snow from the roof while you’re safely on the ground.
Once the freezing weather passes, take some time to inspect the roof or clean away any gutter clogs. The extra weight of ice in your gutters may have caused the gutters to pull away from the home. If any moisture did get under the shingles, the resulting ice may have damaged your shingles as well.
If you do spot of any of these problems, contact an experienced roofing professional. Not only can they perform the proper roofing repair, they can also help you take steps to prevent these problems in the future.
Source: www.askaroofer.com =>How Snow and Ice Impact Your Roof