Commercial roofs present unique maintenance challenges during winter. As plunging temperatures and freezing precipitation take their toll, roof repairs become costly and challenging. Below are four causes of winter problems to remember.

4 Reasons for Commercial Roof Repairs in Winter

1. Snow

Snow produces one of the most serious threats to a commercial roof: excessive weight. A 10,000 square-foot commercial roof can accumulate 30 or more tons of snow in a single storm. The extreme load can severely stress aged or damaged structural components, leading to sectional damage or even collapse.

The weight of snow can also buckle or bend flashing and widen existing gaps between joints or seams. The load may exacerbate problems with membrane cracks or surface depressions. Without roof repairs, you risk a dangerous and costly replacement.

2. Ice

A common problem occurs when water begins collecting along roof edges during a thaw. When temperatures drop below freezing again, the water refreezes to form ice dams.

Ice dams block drainage, contributing to pooling and icing. When ignored, the runoff caused by ice dams can damage floors, walls, and ceilings. As water forms icicles along edges, their weight can also cause gutters to detach or buckle.

3. Water

As snow and ice melt, they leave considerable water that leaks into flaws in the roof structure. Seams and joints provide a path for moisture to get under roofing membranes. When temperatures fall below freezing, ice expands, opening existing gaps.

As fissures widen, more water is allowed in. Soon, the integrity of the entire roof may be compromised. Meanwhile, moisture that reaches roofing sublayers or attics can also lead to mold and rot.  

4. Wind

Wind-blown debris always poses the risk of impact damage. But winter wind creates another severe risk to commercial roofs. As it blows across their surfaces, it enters seams and edges to create uplift pressure. The powerful force may begin to peel back and remove entire sections.

If your roof shows signs of winter damage, you should repair it before problems get worse. In the Greater Newark, OH, area, Mike's Roofing & Construction Services has offered quality, affordable commercial and residential roof repairs for over 23 years. This local, family-operated company also provides siding, door, and window installation services. Call today at (740) 763-2867 to speak with an expert representative, or visit their website for more information about their services.