Maximizing the Lifespan of Flat & Metal Roofing in Ottawa
When many people think of roofing, they immediately picture the traditional asphalt shingle. However, many homes and small commercial properties in the Ottawa region utilize flat roofs or metal roofing systems.
These structures offer unique aesthetic and functional benefits, but they also require specific care to perform at their best. Understanding the nuances of roof maintenance in Ottawa for these specialized systems is crucial for any property owner looking to protect their investment and ensure long-term durability.
At Stewart Roofing, our expertise extends far beyond standard shingles. We are licensed and certified to work with a variety of materials, and our crews are trained in the specific technical requirements of flat and metal installations. We believe in providing our clients with the facts they need to make informed decisions about their property.
The Unique Challenges of Flat Roofing
Flat roofs are common on modern residential designs and commercial buildings throughout the Ottawa area. While they offer a sleek look and can even provide extra outdoor space, they do not have the natural advantage of gravity to shed water as quickly as a sloped roof. This makes maintenance essential.

The primary concern with a flat roof is “ponding” water. If water sits on the surface for more than 48 hours after a rainstorm, it can begin to degrade the membrane and increase the risk of a leak.
During our maintenance visits, we check for proper drainage and ensure that scuppers and drains are not blocked by debris. We also inspect the seams of the roofing membrane, as these are the areas most susceptible to wear over time.
One of the greatest benefits of a professional flat roof service is the application of reflective coatings or the repair of specialized membranes that can significantly reduce cooling costs in the summer. By reflecting the sun’s rays, these materials keep the building cooler and reduce the strain on your HVAC system.
The Durability of Metal Roofing
Metal roofing is becoming increasingly popular in Ottawa because of its incredible longevity and resistance to the elements. A well-maintained metal roof can last 50 years or more, making it a “lifetime” choice for many homeowners. However, “low maintenance” does not mean “no maintenance.”

To keep a metal roof in top condition, it is important to check the fasteners. Over time, the expansion and contraction caused by Ottawa’s extreme temperature swings can cause screws to loosen slightly. Ensuring these are tight and the washers are intact prevents moisture from reaching the roof deck. We also look for any signs of corrosion or scratches in the protective finish that could lead to rust if left untreated.
The benefit of metal is its ability to shed snow quickly, which reduces the weight on your home’s structure. However, this also means you need to ensure your gutters are reinforced and that snow guards are in place to protect your landscaping and walkways.
Quality Roofing Products & Credible Warranties
We only use premium materials from manufacturers who offer robust, transferable warranties. Our status as a trusted local contractor allows us to provide certifications that “fly-by-night” operations cannot offer. When we perform maintenance or repairs, we are not just fixing a problem; we are reinforcing the value of your property.
How To Maintain Specialized Roofs: A Checklist
For those with flat or metal roofs, here is a simple guide to keeping your system healthy:
- Clear debris twice a year. Leaves and twigs can trap moisture against the roof surface, leading to premature degradation of the membrane or metal coating.
- Inspect the perimeter flashing. Ensure that the metal edges are securely fastened and that the sealant is not cracked or peeling.
- Check for physical damage. After a heavy storm, look for dents or punctures that falling branches could have caused.
- Monitor the interior ceilings. Sometimes the first sign of a flat roof issue is a small water stain on the ceiling. Addressing this immediately can save you from a major repair.
Why Choose Stewart Roofing for Your Specialized Maintenance?
With over 30 years of experience in the Ottawa region, we have seen every type of roofing challenge imaginable. We understand that your home or business is a significant investment, and we treat it with the respect it deserves. Our approach is straightforward and honest; we tell you exactly what is going on with your roof without any fluff or gimmicks.
If you are looking for roof maintenance in Ottawa that covers more than just the basics, our team is ready to assist. We offer comprehensive residential roofing evaluations as well as specialized commercial roofing services for flat and metal systems. We pride ourselves on being the roofer you trust when it matters.
By choosing a local firm with a permanent crew, you are ensuring that the people working on your roof are invested in the community and the quality of their work. We do not take shortcuts, and we do not compromise on safety or materials.
Your roof is the most important part of your home’s exterior. Make sure it is maintained by professionals who understand the specific needs of flat and metal systems. Request a Free Estimate today and let our experienced team provide the peace of mind you deserve.