Winter Weather and Your Commercial Roof

Winter Weather and your commercial roof

Colorado is no stranger to drastically changing winter weather. You need to prepare for the effects of winter weather and your commercial roof. The state sees anywhere from 60” to 120” of snow a year, and with nearly 250 days of sunshine, the process of snowing, thawing, and then freezing again becomes routine. As this routine repeats itself throughout the winter, the roof of your commercial property can take quite a beating.

Below are some potential hazards of Colorado winters and how it can affect your commercial roof:

Snow Buildup

Colorado averages the 7th most snowfall annually in the US, and due to most commercial roofs being flat, they typically hold most of the snow that falls on them. This can lead to the roof bearing a dangerous weight load past the maximum limit. The stress on your roof’s integrity can result in cracks, or worst-case scenario, collapse.


Depending on temperature and sun exposure during the winter, there is a high chance of pools of water forming on your commercial roof, known as ponding. Ponding can lead to large amounts of water seeping into spaces where it otherwise would not, including open seams and cracks, causing potential leaking. In addition to this leaking, water getting into these seams and cracks can refreeze overnight, causing the openings to grow.

Winter Winds

Cold and high winds are very common during Colorado winters. Come January, the average wind velocity can reach 10 mph. These consistent high winds can result in damaged flashings, torn laps, and/or open seams depending on the roof type.

We cannot control mother nature, but we can control how we prepare for it. Determining a plan for the incoming weather can save a great deal of money in repairs throughout the winter. Taking steps such as keeping up with routine inspections and maintenance throughout the winter can catch potential issues before they start.

Need help prepping your commercial roof for the Colorado winter? Contact A-Line Contractors today.

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