Cold weather poses many risks to commercial roofs. From high winds to standing water and ice, harsh winters can test the limits of even a well-maintained roof.
Leaks, ice dams, condensation and heavy snow are just some of the problems caused by cold weather.
So, if your commercial roof is compromised, these elements can have a negative impact.
Proactive maintenance during the warm summer months when the roof is clear is the best strategy for preventing a small leak or hole from turning into large, expensive problem. To prepare for winter weather, businesses should do simple maintenance like cleaning gutters, inspecting the roof and making minor repairs.
Continue reading to learn more about the dangers of cold weather, and what you can do to protect your roof.
External Leaks
Leaks are one of the most significant impacts of cold weather. Heavy snow or rain leaves liquid on the surface of the roof, and as temperatures drop the liquid freezes and expands. The cycle of freezing and thawing in cold weather exploits any cracks, seams, or holes in the roof’s surface. Over time, cracks widen, and water is allowed to enter the building and cause further damage.
Ice dams are another factor that leads to leaks. Ice dams occur when snow and ice melt and then flow to another area of the roof where they re-freeze. Ice gradually builds in certain spots, adding weight to the roof and increasing the chances of a leak. Ice dams are more likely when certain areas of the roof are warmer or if drains are obstructed and not well-maintained. The best way to protect a roof from leaks and ice dams is with proper drainage and weatherproofing.
Storm Damage
Winter storms quickly create problems for roofs. A serious winter storm can mean high winds, large quantities of snow, and unexpected or severe cold temperatures. Not only does snow add extra weight, but the longer it sits on the surface of the roof, the higher the chances of leaks or moisture damage. High winds and hail also put stress on the roof, damaging flashing and exposing cracks and seams to the elements.
Internal Moisture
Moisture build-up and condensation are another problem caused by cold weather. Condensation occurs because of the difference in temperature between the outside environment and the warm interior of the building. Over time moisture may become trapped in buffer zones like the underside of the roof. Although the temperature difference is unavoidable, the effects of condensation and the build-up of moisture can be mitigated by proper air circulation and venting.
Tips to Prepare Your Commercial Roof for Winter
Perform regular maintenance
It’s important to perform regular maintenance on commercial roofs during the warm summer months before cold temperatures, ice and snow make the roof inaccessible. This includes simple tasks like clearing debris and leaves from the gutters, removing trash or other items from the roof, trimming back tree branches, and any other necessary work.
Have the roof inspected by a professional
It’s generally recommended that commercial roofs be inspected at least once a year to make sure potential problems are caught early. Professional contractors can assess the roof and look for signs of a leak like pooling water or patches of mold. The roofing inspection checks for issues with flashing, seams and attachments. Areas where the surface of the roof meets with air vents, skylights or chimneys also receive attention during an inspection.
Make repairs
The inspection may discover minor problems that need to be addressed to keep the roof in working order. This usually means simple fixes like a patch or caulking a certain area. In more serious cases, commercial businesses might consider re-roofing or replacing the roof.
A Commercial Roof System that Lasts
Cold weather brings many threats and the possibility of leaks, ice dams and storm damage. Luckily, most of these problems can be prevented with proper maintenance and repair. Commercial businesses in areas with harsh weather should consider weatherproofing options like Duro-Last.
Duro-Last is a patented system that protects roofs against rain and snow. They work on all types of roofs and are customizable for a perfect fit. MacDermott Roofing is an Elite Master Contractor in Michigan and has installed Duro-Last Roofing systems on industrial, commercial and municipal buildings throughout the Metro area.
If you are looking for an ideal roofing solution for your roof replacement or are in need of roof repair and maintenance, we can help. As established roofing contractors, we have the experience and skill to support your building needs. Time for a roof inspection? Call for Free Estimate!