Ontario winters can bring significant snowfall, which poses serious risks for flat roofs. Unlike sloped roofs, flat roofs don’t naturally shed snow, causing accumulation that can lead to structural and water-related issues.
Common Risks of Heavy Snow on Flat Roofs
1. Increased Risk of Leaks
Heavy snow accumulation puts extra pressure on your roof’s membrane. Over time, this can lead to:
Water pooling and seepage into the building.
Compromised roofing seams and flashing.
Increased likelihood of interior water damage.
2. Structural Strain and Collapse
Excessive snow weight can stress a building’s framework, potentially leading to:
Roof sagging or warping.
Structural damage requiring costly repairs.
In extreme cases, partial or complete roof collapse.
3. Ventilation and Drainage Blockages
Heavy snow can obstruct essential rooftop components, including:
Roof drains, leading to improper water runoff and ice dam formation.
Ventilation systems, reducing airflow and increasing indoor humidity.
HVAC equipment, which may become buried under snow, causing operational issues.
Why You Should Hire a Certified Roofing Professional for Snow Removal
While removing snow from a flat roof may seem straightforward, it requires expertise to prevent unintentional damage. Certified roofers:
Have Working at Heights training to ensure safe removal procedures.
Understand how to avoid damaging the roofing membrane and ventilation systems.
Use the right tools and techniques to prevent tearing, punctures, or seal breakage.
Assess the roof’s condition before and after removal, ensuring structural integrity.
Best Practices for Protecting Your Flat Roof in Winter
1. Monitor Snow Accumulation
Keep an eye on snowfall levels, especially after major storms.
If accumulation exceeds 12 inches, consider professional snow removal.
Wind can create drifts, causing higher levels of snow in hard to see areas.
2. Schedule Regular Inspections
Pre-winter inspections help identify potential vulnerabilities.
Mid-season check-ups ensure drains and ventilation remain clear.
Clearing snow regularly can prevent leakage due to ice build up.
3. Ensure Proper Drainage
Clear leaves and debris from drains before winter begins.
Remove ice buildup that could obstruct water flow.
Avoid salt or sand as melting agents to help reduce clogging
4. Use Professional Snow Removal Services
Avoid DIY removal, as improper techniques can damage roofing materials.
Certified roofers know how to safely clear snow without harming the structure.
Avoid liability issues with trained roofing professionals.
Why Choose Garcia Roofing for Snow Removal?
At Garcia Roofing, we’re certified in safe and effective flat roof snow removal. Our experienced team ensures your roof remains intact while minimizing risks associated with heavy snow accumulation.
Our Expertise Includes:
Professional snow removal that protects roofing materials.
Winter roof inspections to prevent costly damage.
Safe and efficient service with Working at Heights certified professionals.
“We’re not just here for today, we’re here for tomorrow.”
When it comes to flat roofs, selecting the right material is essential for longevity, energy efficiency, and overall performance. With multiple options available, it’s important to understand the advantages and disadvantages of each material. In this guide, Garcia Roofing breaks down the most popular flat roof materials to help you make an informed decision.
Common Flat Roof Materials and Their Benefits
1. Modified Bitumen (ModBit)
What It Is: Modified Bitumen is an asphalt-based roofing system reinforced with polymers for added strength and flexibility.
Pros:
Highly durable and resistant to extreme weather conditions.
Self-healing properties reduce the risk of leaks.
Easy to repair and maintain.
Ideal for roofs with multiple penetrations (vents, pipes, HVAC systems).
Cons:
Slightly higher installation cost compared to other materials.
Requires professional installation for optimal performance.
Best For: Residential and commercial buildings needing a long-lasting, weather-resistant solution.
2. Thermoplastic Polyolefin (TPO)
What It Is: TPO is a single-ply roofing membrane known for its energy efficiency and heat-reflective properties.
Pros:
High UV resistance, reducing cooling costs in summer.
Lightweight and easy to install.
Resistant to mold, dirt, and punctures.
Cons:
Seams must be welded properly to prevent leaks.
Lower-quality TPO products may not last as long as premium options.
Best For: Energy-conscious businesses and buildings in warm climates.
3. Ethylene Propylene Diene Monomer (EPDM)
What It Is: EPDM is a synthetic rubber membrane popular for its durability and cost-effectiveness.
Pros:
Long lifespan (up to 30 years with proper maintenance).
Resistant to UV rays and extreme temperatures.
Easy to repair and install.
Cons:
Black EPDM absorbs heat, potentially increasing cooling costs.
Vulnerable to punctures from sharp objects.
Best For: Budget-conscious property owners needing a reliable, long-lasting solution.
4. Polyvinyl Chloride (PVC)
What It Is: PVC roofing is a durable, single-ply membrane similar to TPO but with added chemical resistance.
Pros:
Highly resistant to chemicals, grease, and fire.
Strong welded seams for superior waterproofing.
White reflective surface improves energy efficiency.
Cons:
More expensive than TPO and EPDM.
Can become brittle over time in cold climates.
Best For: Restaurants and industrial buildings exposed to grease and chemicals.
5. Built-Up Roofing (BUR)
What It Is: BUR is a traditional multi-layered roofing system consisting of asphalt, gravel, and reinforcing fabrics.
Pros:
Excellent waterproofing and UV protection.
Long lifespan when maintained properly.
Heavy-duty material withstands foot traffic.
Cons:
Heavy material may require additional structural support.
Longer installation time compared to single-ply membranes.
Best For: Industrial buildings or structures requiring an extra-durable surface.
How to Choose the Right Flat Roof Material
When selecting a flat roof material, consider these key factors:
Climate: Ontario’s harsh winters and fluctuating temperatures make durability and weather resistance essential.
Budget: While some materials have higher upfront costs, they may save money in long-term maintenance.
Building Use: A commercial building may require a different roofing solution than a residential property.
Maintenance Requirements: Some materials need more frequent inspections and repairs.
Why Choose Garcia Roofing for Your Flat Roof Installation?
At Garcia Roofing, we specialize in installing and maintaining high-quality flat roofing systems. Our team ensures proper installation for long-lasting performance and peace of mind.
Our Expertise Includes:
Professional installation of Modified Bitumen, TPO, EPDM, and PVC.
Customized solutions based on your property’s needs.
Comprehensive inspections to maximize roof lifespan.
“We’re not just here for today, we’re here for tomorrow.”