Many building owners don’t think a lot about their commercial roof until it suffers some sort of problem. However, understanding your roof can help you maintain it so that it will last for a long time without any issues. Here’s what you need to know about the effects of winter on your commercial roof so you can make wise decisions for your business.
Freezing and Thawing
When winter comes, things don’t just freeze once and stay frozen until spring. Instead, they freeze and thaw, freeze and thaw, over and over again. This cycle can wreak havoc on your roof. When water enters any sort of crack and then freezes, it expands. This expands the crack, too, until you have a roof leak on your hands. Vulnerable roof spots include flashings, tie-ins, downspouts, drains, seams, and anyplace where snowdrifts pile up. Removing the snow and getting your roof dry can make a huge difference.
While commercial roofs in our area have been built to withstand some extra weight from snow accumulation, you can still damage your roof. Fresh snow adds about 20 lbs. of weight per cubic foot. Once it thaws and refreezes, that number can jump to 60 lbs. per cubic foot. Removing snow is the best way to deal with this problem. You can also keep your eye out for signs that your roof needs help. These include: loud popping noises, bends or bows in metal roof supports, sagging purlins, cracks in wooden roof supports, and other roof deformities.
Roofs need to be able to expand and contract as temperatures change. During the day, it needs to be able to flex to withstand higher temperatures. Overnight, it needs to be able to deal with extreme lows. Newer roof membranes are able to do this well. Older roof membranes can be like old, worn-out rubber bands. At some point, they begin to deteriorate with every expansion and contraction.
Help Your Roof Withstand Winter
The best way to help your roof is to get it inspected regularly, come up with a plan for maintaining it through the winter, and get any problems repaired professionally. At Watershed Roofing & Restoration, we would be happy to help you with your commercial roof. Call us today and one of our professionals will be out to your place of business soon. We’ll assess your needs and keep your roof in the best possible shape this winter! Call us today to get a free estimate!