Winter Roof Maintenance: Protecting Your Metal Building
The long, hot days of summer are behind us, and winter is on its way. Picture the first snowflakes gently blanketing trees and rooftops, the cozy scent of firewood in the air and rosy noses braving the chilly winds. Kids huddle around the TV, crossing their fingers for a snow day or a few extra hours of sleep. But while they dream of snowball fights, it’s time for you to turn your attention to something far more practical: your building’s roofline.
The Risks of Snow and Ice Buildup
Snow and ice can wreak havoc on metal buildings, especially when they pile up on the roof. Steeper roofs may shed some snow, but much of it sticks around, particularly on cold or already snow-covered surfaces. This buildup can strain your building’s structure, posing a serious risk if left unchecked.
Preventing Snow and Ice Accumulation
To keep your roof safe, consider these proactive steps:
- Install Snow Guards: Place devices strategically on your roof to break up large sheets of snow or ice, preventing dangerous slides or heavy accumulation.
- Use Heat Tape: Install heat tape in gutters and downspouts to keep them clear and ensure proper drainage. Clogged gutters can lead to ice dams, which increase the risk of roof damage.
When Prevention Isn’t Enough: Snow Removal
Despite your best efforts, heavy snow may still accumulate. Fresh snow weighs around 10–12 pounds per cubic foot, but as it compacts or absorbs water, it becomes much heavier. Rain on top of snow can create excessive loads in no time, putting your building at risk.
“The first sign of trouble is when the drop ceilings begin to sink below a flat level surface. The eye picks up even the slightest ½” variance,” says Cary Barger, director of field service, claims and warranty administration at Cornerstone Building Brands. “This is not alarming by itself, as the roof members have an allowable amount of deflection before reaching the limitations. You do not want to exceed those limitations and risk permanent damage to the primary and secondary members. When it exceeds the common amount for the area, it’s time to consider lowering it to a safe level in six-inch increments across the roof. Removal of only one area at a time will cause an unbalanced load, which is not desirable.”
Safe Snow Removal Tips
If snow buildup becomes a concern, proceed with caution:
1. Consult Experts: Before starting, contact your building manufacturer or a structural engineer. They can provide guidance to ensure safe and effective snow removal.
2. Remove Snow Evenly: Clear snow in six-inch increments across the entire roof to avoid creating an unbalanced load, which could cause structural issues.
3. Refer to Resources: Check the Metal Building Systems Manual for detailed snow removal guidelines tailored to metal buildings.
Stay Ahead of Winter
By taking preventive measures and staying vigilant, you can protect your metal building from the perils of winter weather. A little preparation now can save you from costly repairs later, letting you enjoy the beauty of the season worry-free.