ROOFNOW™ ENGINEERING GUIDE
Best Roof for Snow, Ice & Wind in Ontario
A technical breakdown of how different roofing systems perform under extreme Canadian weather conditions.
Why Ontario Roofing Must Be Engineered for Weather
Ontario roofs face constant environmental stress — heavy snow loads, ice dams, high winds, and rapid temperature changes. Choosing the wrong roofing system can lead to leaks, structural damage, and early replacement.
A strong roofing system must be engineered to handle these forces over time, not just survive them temporarily.
Snow Load
Roofs must support accumulated snow weight without structural stress or deformation.
Ice Dams
Ice buildup can trap water and cause leaks if the system is not properly designed.
Wind Uplift
High winds can lift or remove poorly secured roofing materials.
Freeze-Thaw Cycles
Repeated expansion and contraction weakens traditional materials.
How Asphalt Roofing Performs
Asphalt shingles can struggle under heavy snow and ice conditions. They are more susceptible to moisture damage, curling, cracking, and wind uplift over time.
This often leads to repairs, leaks, and shorter roof lifespan in Ontario climates.
How Metal Roofing Performs
Metal roofing systems are designed to shed snow more efficiently, resist wind uplift, and handle freeze-thaw cycles better than traditional materials.
Their structural design allows them to maintain performance over time, making them a strong option for Ontario homes and cottages.
Key Engineering Factors to Consider
When selecting a roofing system, homeowners should consider load capacity, fastening systems, panel design, ventilation, and overall installation quality.
These factors determine how well the roof performs under real-world conditions.
Choose a Roof Built for Ontario Weather
Get a free ROOFNOW™ estimate and choose a roofing system engineered for long-term performance.