If you have a flat or low-slope roof, you may be wondering what roofing solution offers the best combination of durability and waterproofing. One option that often comes up is torch-on roofing. At AlphaNova Roofing, we often hear from clients who are unsure what torch-on roofing actually involves or whether it makes sense for their home or building. That is why we put together this simple guide to help you understand the basics and make an informed decision. Torch-on roofing is a specialized system that requires expert installation, but it can deliver long-lasting performance in the right setting. Let’s take a closer look at how it works and whether it fits your needs.
What is Torch-On Roofing
A Modified Bitumen System for Flat Roofs
Torch-on roofing is a type of modified bitumen membrane applied to low-slope or flat roofs using a propane torch. The material is rolled onto the roof and heated during application so that it melts and adheres securely to the surface. This creates a waterproof seal that is ideal for areas where traditional shingles are not effective. It is especially popular for commercial buildings and modern residential homes with minimal pitch.
Two-Layer Protection
Most torch-on roofing systems use a two-layer process. First, a base sheet is installed for foundational strength and protection. Then, a cap sheet is applied with granules that offer UV resistance and a clean finish. This dual-layer approach gives added durability and makes the roof more resistant to weather damage, water pooling, and extreme temperatures. You can learn more about our residential roofing installation process to see how we approach this system for homes.
Benefits of Torch-On Roofing
Waterproof and Weather Resistant
Torch-on roofing provides excellent waterproofing, making it a smart choice in rainy areas like the Lower Mainland. The sealed layers prevent water from seeping through, even in standing water situations.
Long Lifespan
With proper installation and maintenance, a torch-on roof can last 20 years or more. This makes it a great long-term investment for both homes and businesses. Our roof maintenance services help keep torch-on systems performing their best year after year.
Fire and UV Protection
The top layer includes granules that resist both UV rays and fire, offering peace of mind and improved safety.
Is It Right for Your Property
Best for Flat or Low-Slope Roofs
Torch-on roofing is not ideal for pitched roofs, but it excels on flat surfaces where shingles would be prone to leaking. If your property fits this category, it is worth considering. At AlphaNova Roofing, we evaluate your structure and recommend what will work best for your roof type.
Requires Professional Installation
Due to the use of open flame and the precision needed, torch-on roofing should only be installed by experienced professionals. Our certified team is trained to ensure safety and high-quality results every time.
Upfront Cost vs Long-Term Value
While the upfront cost may be higher than basic shingles, the long-term benefits, like fewer repairs and extended lifespan, often make up for it. Curious how it compares for your building? Reach out for a free quote or explore our full roof replacement options to learn more.
Conclusion
Torch-on roofing is a powerful solution for flat and low-slope roofs, offering reliable waterproofing, long-term durability, and energy efficiency when installed by professionals. If you are considering a roofing upgrade or planning for new construction, understanding your options is the first step. The right system depends on your property, budget, and goals. If you want to learn more about torch-on roofing or see if it makes sense for your property, just fill out the form below, and our team will be in touch.
