When it comes to choosing the right roofing system for flat or low-slope roofs, durability, weather resistance, and longevity are key factors. Torch down roofing, also known as modified bitumen roofing, has become a popular option among contractors and building owners for precisely these reasons. What is torch down roofing and why it might be the right choice for your next roofing project. Let’s find out!
What Is Torch Down Roofing?
Torch down roofing is a type of roofing system that uses modified bitumen sheets, which are rolled out and adhered to the roof surface using an open-flame torch. The heat melts the bitumen, fusing it to the roof deck to create a waterproof barrier.
There are typically two types:
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Two-layer systems, consisting of a base sheet and a cap sheet.
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Three-layer systems, which include an additional protective layer for enhanced durability.
Top Benefits of Torch Down Roofing
1. Superior Waterproofing
Torch down roofs create a strong, seamless, and watertight seal. The heat-fused application prevents water from seeping under the membrane, making it an excellent choice for areas with heavy rainfall or snow.
2. Long Lifespan
When installed properly, torch down roofing can last 15 to 20 years or more. The UV-resistant cap sheet adds to its longevity by protecting against sun damage and temperature fluctuations.
3. Flexibility and Strength
Modified bitumen contains rubber-like polymers, making the membrane both flexible and durable. It can expand and contract with temperature changes without cracking—an essential feature for roofs exposed to extreme weather.
4. Low Maintenance
Thanks to its durability and resistance to damage, torch down roofing requires minimal maintenance compared to other flat roofing options. Occasional inspections and minor patching are usually sufficient to keep it in good shape.
5. Fire Resistance
Torch down roofing materials are made to be fire-retardant. While installation involves an open flame, the finished roof itself is designed to resist catching fire, which adds a layer of safety to commercial or residential buildings.
6. Energy Efficiency
Some torch down roofing systems include reflective coatings that help reduce heat absorption, lowering cooling costs during hot weather. This energy efficiency can contribute to a more sustainable building design.
Considerations Before Installation
While torch down roofing offers many advantages, it’s important to note that installation requires professional expertise due to the use of open flames. Hiring an experienced contractor is essential for safety and performance.
It can be more costly upfront than some other roofing options like rolled roofing or tar and gravel but the long-term benefits often outweigh the initial investment.
Overall, torch down roofing is a robust, weather-resistant solution ideal for flat or low-slope roofs. Its durability, flexibility, and low maintenance requirements make it a cost-effective option over time. If you’re looking for a reliable roofing system that offers long-lasting protection, torch down roofing may be the perfect fit.
Robert Gardner Roofing
in Seattle, WA has been the trusted roofing company in the greater Seattle area for over 20 years. Our team of expert roofers will arrive at your home or business with all the necessary materials and carefully set up for installation. We prepare everything offsite, in advance, so the job runs efficiently, creating a clean and safe job site! Contact them today for a FREE repair or roof replacement estimate; same-day estimates are possible based on availability. Have a question? Contact them online or call 206-498-0691.
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