As temperatures drop and snow begins to fall, flat roofs in Ontario face some of their toughest challenges of the year. Without proper preparation, even the strongest roof systems can suffer leaks, ice damage, and stress from snow loads.
At Garcia Roofing, we help building owners, contractors, and property managers protect their investments with proactive winter maintenance — keeping roofs safe, watertight, and ready for whatever the season brings.
Inspect Before the First Snowfall
Before winter sets in, it’s crucial to have your roof professionally inspected. Look for:
- Cracks or blisters in the membrane
- Damaged flashing around vents and edges
- Debris buildup near drains or scuppers
- Early signs of ponding or poor drainage
Catching small problems now can prevent major repair costs later.
Clear Debris and Check Drainage
Leaves, sticks, and dirt block drainage systems and create standing water — a serious risk once it freezes. Clear everything from the roof surface and test all drains and scuppers to ensure they’re flowing properly.
Even a small clog can lead to ice dams, which can cause leaks and dangerous weight buildup.
Reinforce Vulnerable Areas
Winter is unforgiving to weak seams, old flashing, and thin coatings. A certified roofer can reinforce these vulnerable points using:
- Cold-applied sealants for added flexibility
- Protective coatings to improve waterproofing
- Edge reinforcement systems to reduce ice damage
These preventive measures extend the life of your roof and help it handle the freeze-thaw cycles Ontario is known for.
Monitor Snow Loads Throughout Winter
Snow can accumulate quickly and unevenly, especially during storms with wind drift. When left unchecked, it can strain your roof’s structure or cause partial collapse.
Garcia Roofing recommends:
- Monitoring snow depth weekly during heavy snowfall
- Scheduling professional snow removal for roofs with over 8–12 inches of buildup
- Never using metal shovels or ice picks that can damage membranes
Check Interior Spaces for Warning Signs
Winter roof issues aren’t always visible from outside. Watch for:
- Ceiling stains or bubbling paint
- Unusual odors or moisture
- Condensation forming near HVAC vents
These can indicate hidden leaks or insulation failures that should be addressed immediately.
Partner with a Certified Roofing Contractor
Winter roofing isn’t just about repairs — it’s about prevention. Garcia Roofing’s certified professionals are trained to identify risks, reinforce vulnerable areas, and respond quickly to emergencies.
We collaborate closely with builders, contractors, and property managers to ensure each roof system remains durable, efficient, and safe — even through Ontario’s toughest winters.
We’re not just here for today, we’re here for tomorrow as well.
