Winter storms can turn your commercial property into a picturesque scene — but they also pose a serious risk to your building’s structural integrity. Heavy snow and ice accumulation can lead to roof collapses, causing significant damage, downtime, and safety concerns. Fortunately, proactive measures can help protect your investment. Here’s how to safeguard your commercial roof this winter.
Understand the Risks
Snow and ice can be deceptively heavy, especially when wet. A cubic foot of dry snow weighs about 7 pounds, while the same amount of wet snow can weigh up to 20 pounds or more. Over time, repeated snowfalls and freezing rain create layered loads, putting immense strain on your roof. Flat roofs and roofs with poor drainage are particularly vulnerable.
Warning Signs of Roof Stress
Before a collapse occurs, your roof may show signs of distress:
- Sagging areas: Visible depressions or uneven surfaces are red flags.
- Leaking water: Snowmelt that cannot drain properly may seep into the building.
- Creaking or popping sounds: These noises can indicate that the roof is struggling to bear the load.
- Cracks in walls or ceilings: Structural cracks can develop under extreme stress.
If you notice these issues, act immediately to prevent further damage.
Steps to Prevent Roof Collapses
- Schedule Regular Inspections
Before winter begins, hire a professional to inspect your roof for vulnerabilities. Pay close attention to structural integrity, drainage systems, and roofing materials. Address any issues such as loose fasteners, damaged insulation, or clogged gutters. - Invest in Snow Removal Services
Avoid allowing snow to build up on your roof. Hire professionals to safely remove snow and ice. Improper removal methods, such as using sharp tools, can damage the roof membrane and create long-term problems. - Install Heating Systems or Snow Guards
Heated cables or roof heating systems can help prevent ice dams and reduce snow accumulation. Snow guards are another effective solution, as they help distribute snow evenly and prevent sudden avalanches off the roof. - Maintain Proper Drainage
Ensure that gutters, downspouts, and roof drains are clear and functioning. Blocked drainage can lead to ponding water, which can freeze and exacerbate the load. - Monitor Weather Conditions
Pay attention to weather forecasts and act quickly when heavy snow or freezing rain is expected. Preemptive action, such as de-icing or preparing snow removal teams, can minimize risks. - Reinforce Your Roof Structure
If your building is in a region prone to heavy snowfalls, consider reinforcing the roof to handle additional loads. Consulting with a structural engineer can provide insight into whether upgrades are necessary.
What to Do in an Emergency
If you suspect your roof is at risk of collapse:
- Evacuate the building immediately to ensure the safety of occupants.
- Contact a roofing professional for an emergency inspection.
- Avoid attempting DIY snow removal, as walking on a compromised roof can cause further damage or injury.
The Bottom Line
Preventing roof collapses from snow and ice accumulation requires a mix of preparation, maintenance, and vigilance. By taking proactive steps and addressing risks early, you can ensure your roof stays strong throughout the winter season. Need assistance with winterizing your commercial roof or emergency services? Contact CP Rankin today — we’ve got your roof covered, rain or snow! Call 866-ROOF-322 or drop us a line at service@cprankin.com.