Monday, November 2, 2015

Winter Effects on Your Commercial Roof

Snow, ice, and low temperatures, and other winter effects send most facility managers indoors to focus on maintaining a comfortable interior climate. You probably have no intention of going up on a roof while your community is locked in winter’s grip. But snow, ice, and thermal shock aren’t taking a break. Commercial buildings with flat roofs are at increased risk because of their wide spans and low slopes. Winter is not the time to forget about your roofs. The last thing you want is a tenant forming a bucket brigade inside your building or presenting a bill for damaged merchandise.
Freeze/Thaw Cycle

Today’s commercial roofing systems are better than ever at defending against winter’s onslaughts, but snow and ice, accompanied by partial thawing and refreezing, can wreak havoc on a roof, especially if the roof is nearing the end of its life cycle. While ice is a formidable enemy anywhere on the roof, areas of special concern include drains, downspouts, tie-ins, flashings, seams and areas where accumulation can occur. With repeated freeze thaw cycles, the risk of damage to the roof increases. When water seeps into a crack and freezes, it expands the crack, leading to leaks.

Thermal Shock

Some types of roofing systems are prone to damage from repeated temperature extremes. Thermal shock occurs when daytime highs warm the roof’s surface, followed by night time temperatures that dip below freezing. Older roof membranes eventually lose their tensile strength and their ability to expand and contract without deterioration.

Best Practice

You will get the longest life out of your roof by having regular inspections, making repairs and scheduling routine maintenance. No roof will last forever, but with professional care, many roofs outlast their original anticipated life spans. Brown Roofing can assess your roof’s cold-weather risk and help you formulate a plan that will extend the life of your roof.

Call us today at 256-238-8859 or visit our web site at to schedule an inspection.