Vancouver, known for its picturesque landscapes and moderate climate, is a city that experiences frequent rainfall throughout the year. This makes choosing the right roofing system for residential and commercial buildings a critical decision. One popular roofing option that has stood the test of time in Vancouver is torch on roofing. In this article, we will explore what torch on roofing is, its pros and cons, the cost of installation, the number of layers used, the lifespan of torched roofs, and alternatives to torch on roofing in Vancouver.
What is Torch On Roofing
Torch on roofing, also known as torch down roofing, is a type of roofing system that is made up of layers of modified bitumen sheets. These sheets are made from a blend of asphalt and rubberized polymers that are reinforced with fiberglass or polyester. The installation process involves melting the bitumen sheets onto the roof using a propane torch, hence the name “torch on roofing”. Once the sheets are melted, they adhere to the roof substrate, creating a durable and waterproof barrier.
Pros and Cons of Torch On Roofing
There are several advantages to using torch on roofing in Vancouver. Firstly, it provides excellent waterproofing properties, making it highly effective in preventing water infiltration, which is crucial in a rainy climate like Vancouver. The torch on roofing system also has good UV resistance, which helps to protect the roof from the damaging effects of the sun’s rays. Additionally, torch on roofing is known for its durability, as it can withstand foot traffic, extreme temperatures, and harsh weather conditions.
Another benefit of torch on roofing is its versatility. It can be used on a wide range of roof types, including flat roofs and roofs with low slopes. The installation process is relatively quick, and repairs can be easily made by patching or re-torching the affected areas.
However, torch on roofing also has some drawbacks. One major concern is the safety aspect of torching, as it involves the use of an open flame during installation. This requires skilled and experienced roofers to ensure proper safety precautions are taken to prevent accidents or fires. Additionally, the installation process requires careful attention to detail, and any mistakes or improper installation can compromise the effectiveness of the roofing system.
Cost of New Torch On Roof Installation
The cost of installing a new torch on roof in Vancouver can vary depending on various factors such as the size of the roof, the type of building, and the complexity of the installation. According to the Canadian Roofing Reference Manual, the average cost of installing a torch on roof in Canada can range from $3 to $8 per square foot, including materials and labor costs. However, it’s important to note that these costs are estimates and may vary depending on local market conditions and other factors.
Number of Layers in a Torch Down Roof
A typical torch on roofing system consists of multiple layers. The base layer is usually a solid substrate, such as plywood or concrete, which provides the foundation for the roof. On top of the base layer, one or more layers of modified bitumen sheets are torched down to create a waterproof barrier. These layers are typically overlapped to ensure maximum protection against water infiltration. Finally, a protective layer, known as a cap sheet, is installed on top to provide additional durability and UV resistance.
How Long Do Torched Roofs Last
The lifespan of a torch on roof depends on various factors such as the quality of materials used, the installation process, and the maintenance practices followed. On average, torch on roofs can last between 15 to 20 years or even longer with proper care. Regular inspections, timely repairs, and proper maintenance can help extend the lifespan of torch on roofs in Vancouver.
If you’re considering torch on roofing for your next roofing project in Vancouver, it’s important to work with experienced and reputable Vancouver roofers who can provide proper installation and ensure safety measures are followed. Companies like Coast Mountain Roofing offer torch on roofing services in Vancouver and can provide expert advice on the best roofing system for your needs.
An Alternative to Torch On Roofing
While torch on roofing has been a popular choice in Vancouver for many years, there are also alternative roofing options available. One popular alternative is the use of single-ply membranes, such as TPO (Thermoplastic Olefin) or EPDM (Ethylene Propylene Diene Terpolymer), which are also known as “cool roofs”.
These membranes are made of synthetic materials and are installed in a single layer, without the need for torching or open flames. Instead, they are usually adhered or mechanically fastened to the roof substrate, making them a safer option in terms of installation.
Single-ply membranes offer several advantages, including ease of installation, energy efficiency, and flexibility. They are known for their reflective properties, which can help reduce the heat absorbed by the building, leading to lower energy consumption for cooling during hot summers. Additionally, single-ply membranes are resistant to UV radiation, chemicals, and punctures, making them durable and long-lasting. They also require minimal maintenance, which can save on maintenance costs over time.
It’s worth noting that single-ply membranes are typically more expensive upfront compared to torch on roofing. However, their long-term benefits in terms of energy savings, durability, and reduced maintenance costs can offset the initial investment.
Conclusion
In conclusion, torch on roofing continues to be a popular choice for roofing systems in Vancouver due to its excellent waterproofing properties, durability, and versatility. It has been used for many years and has proven to be effective in protecting buildings from the rainy climate of Vancouver. However, it’s important to note the safety concerns associated with torching during installation, and proper safety precautions must be followed.
There are alternative roofing options available, such as single-ply membranes, which offer their own set of advantages in terms of ease of installation, energy efficiency, and durability. Ultimately, the choice of roofing system depends on various factors such as budget, building requirements, and personal preferences.