What Happens To Your Roof When It Snows?
As winter sets in, business owners need to be prepared for the impact that snow can have on their buildings, especially their roofs. Snow accumulation, ice buildup, and fluctuating temperatures all contribute to the wear and tear of your roofing system, potentially leading to damage and costly repairs. Understanding what happens to your roof during snowy weather can help you take preventative measures to keep your property safe, functional, and open for business all winter long.
Weight Stress from Snow Accumulation
When snow accumulates on your roof, the added weight can place significant stress on the structure. Roofs are typically built to support a certain load, but heavy snowfall can easily exceed this limit, especially in regions that experience substantial snowstorms. This excess weight can lead to sagging, cracking, or even collapse if left unattended. The risk is higher if the roof has not been inspected or reinforced recently.
For business owners, this can mean forced closures, insurance claims, and extensive repairs, all of which impact operations and finances. Flat roofs, often seen on commercial properties, are especially vulnerable since snow and ice tend to linger longer, putting extra stress on the structure.
Formation of Ice Dams
Ice dams form when heat from inside the building melts the snow on the roof, causing it to run down to the colder edges of the roof, where it refreezes. As ice builds up along the edges, it creates a barrier that traps additional melting snow. This trapped water can seep under the shingles and leak into the building, potentially damaging the roof deck, insulation, and interior ceilings.
Ice dams are particularly problematic for commercial properties because leaks can disrupt operations, damage equipment, and affect employee productivity. In severe cases, water infiltration can lead to mold growth and compromised air quality, posing health risks for employees and customers.
Freeze-Thaw Cycles and Roof Materials
Repeated freezing and thawing can have a significant impact on roofing materials. Snow that melts during the day refreezes at night, causing expansion and contraction. This freeze-thaw cycle weakens shingles, flashing, and sealants, making your roof more susceptible to leaks. For commercial roofs made of materials like metal, this expansion and contraction can loosen fasteners and increase the risk of punctures.
For businesses, these vulnerabilities can lead to water damage that affects everything from ceilings to valuable inventory and equipment.
These are the 3 biggest threats snow can pose to your roof. Being prepared for these issues to arise can help save your business money and the overall headache of having to get major roof damages fixed. If you are in need of any commercial roofing services this winter, from repairs to maintenance, contact us today for a free consultation.
