3 Ways Freezing Temperatures and Snow Can Impact Your Commercial Roof
Winter weather in Houston may be rare, but when snow and freezing temperatures arrive, they can cause significant challenges for commercial roofs.
Many property owners and maintenance managers aren’t prepared for the unique stresses that cold weather and snowfall can place on their buildings.
With snowfall predicted on Tuesday, now is the time to act.
In this blog, we’ll explore how freezing conditions
and snow impact commercial roofs, what steps you can take before and after a winter storm, and why partnering with professionals like Brazos Commercial Roofing can save you time, money, and stress.
The Impact of Freezing Temperatures and Snow on Commercial Roofs
1. Weight of Snow and Ice Accumulation
While snow may look light and fluffy when falling, once it accumulates, it becomes heavy. A cubic foot of snow can weigh anywhere from 6 to 20 pounds depending on its moisture content, and when it melts and refreezes into ice, the weight can be even greater. This can lead to:
- Structural Strain: Excessive weight can cause sagging, cracks, or even collapse in poorly maintained roofs.
- Damage to Roofing Materials: Prolonged exposure to heavy snow can weaken materials like flashing, membranes, and sealants.
2. Freeze-Thaw Cycles
Fluctuating temperatures can lead to repeated freeze-thaw cycles. Water from melting snow seeps into small cracks and crevices during the day and freezes overnight, expanding and causing damage like:
- Cracked Roofing Membranes: Over time, this cycle creates tears and gaps in roofing systems.
- Widened Seams: Water infiltrating seams can cause leaks and reduce your roof’s effectiveness.
3. Clogged Drainage Systems
Ice and debris can block gutters and downspouts, preventing proper drainage. This leads to:
- Ponding Water: Standing water on flat roofs increases the risk of leaks and water damage.
- Ice Dams: Ice forming at roof edges can trap water behind it, creating pressure that forces water under roofing materials.
Pre-Snowfall Preparation for Commercial Roofs
Proper preparation can significantly reduce the risk of winter-related damage to your commercial roof. Here’s what property owners and maintenance managers should do:
Inspect Your Roof
Conduct a thorough inspection to identify potential vulnerabilities like:
- Loose flashing or seams
- Cracks in the roofing membrane
- Areas prone to pooling water
Clean and Clear Debris
Ensure your roof is free of leaves, branches, and other debris. Clogged drains can exacerbate snow and ice issues.
Check Your Drainage System
Inspect gutters, downspouts, and internal drains for blockages. Make sure they’re clear and functioning to handle melting snow.
Apply Protective Coatings
Consider adding a waterproof coating or sealant to your roof. These coatings help reduce water infiltration and provide an extra layer of defense against freeze-thaw cycles.
Schedule a Professional Inspection
Call experts like Brazos Commercial Roofing to evaluate your roof before the storm. We can spot issues you might miss and recommend preventive measures to ensure your roof is winter-ready.
Post-Snowfall Steps to Protect Your Commercial Roof
After the snow has fallen, quick action is critical to minimize damage. Follow these steps:
Safely Remove Snow
Excess snow buildup needs to be cleared, especially on flat roofs, but it must be done carefully to avoid damaging the surface. Use soft tools like plastic shovels and avoid harsh scraping.
Check for Ice Dams and Blockages
Inspect gutters, downspouts, and roof edges for ice dams. Break them up carefully to restore proper drainage.
Inspect for Damage
After the snow melts, check for new cracks, sagging, or leaks. Look for water stains on ceilings or walls, as these are early signs of roof damage.
Monitor Ponding Water
Once the snow melts, watch for areas where water pools. Address these immediately to prevent leaks and structural strain.
Call for Repairs Promptly
If you notice any damage, don’t delay repairs. Even minor issues can escalate quickly in freezing conditions. Brazos Commercial Roofing offers 24/7 emergency services to address winter roofing problems promptly and efficiently.
Quick Stats on Winter Roof Damage
To put the risks into perspective, here are some key facts:
- Roof collapses: Snow and ice accumulation cause hundreds of roof collapses annually in the U.S., leading to millions in damages.
- Ice dams: According to the Insurance Institute for Business & Home Safety, ice dams are among the most common winter-related roofing issues, causing extensive water damage.
- Preventive maintenance savings: Proactive maintenance can reduce repair costs by up to 30–50% compared to emergency fixes.
Why Brazos Commercial Roofing Is Your Winter Weather Ally
At Brazos Commercial Roofing, we know Houston isn’t accustomed to snow, but we’re here to help you weather the storm. Our team provides:
- Pre-Winter Inspections: We’ll identify vulnerabilities and recommend solutions tailored to your roof’s needs.
- Emergency Repairs: Our 24/7 service ensures you’re never left waiting when an urgent problem arises.
- Snow and Ice Removal: Safely clear your roof of hazardous buildup without damaging materials.
- Expert Guidance: From choosing protective coatings to long-term maintenance plans, we’re your trusted partner in commercial roofing care.
FAQ: Protecting Your Commercial Roof from Snow and Ice
How much snow can a commercial roof handle?
This depends on your roof's design, materials, and structural support. A professional inspection can help determine your roof’s load-bearing capacity.
Can snow and ice damage flat roofs more than sloped roofs?
Yes, flat roofs are more susceptible to issues like ponding water and ice dams due to their lack of natural drainage.
What should I do if I see water stains after the snow melts?
Water stains are a sign of leaks. Contact a professional roofing contractor like Brazos Commercial Roofing immediately to inspect and repair the damage.
Conclusion: Stay Proactive and Prepared
While snowfall in Houston may be unusual, it’s essential to protect your commercial roof from the risks associated with freezing temperatures and snow. By preparing ahead of time, monitoring your roof during the storm, and taking action immediately afterward, you can prevent costly damage and keep your building safe.
If you need expert assistance, Brazos Commercial Roofing is just a call away. Whether it’s a pre-storm inspection, emergency repairs, or professional snow removal, we’re here to ensure your roof weathers the winter safely. Don’t hesitate—contact us today to schedule your winter roofing services!
Brazos Commercial Roofing is your trusted commercial Waterproofing specialists! Call us today at 281-414-5452 or fill out the form here for a free consultation.