Torch-On Waterproofing: This method uses heat to melt and bond a bituminous membrane to surfaces, creating a seamless, durable waterproof barrier. It’s commonly used on roofs, particularly flat or low-slope ones, and is known for its long-lasting protection against water.
Torch-on waterproofing is a method of applying a waterproofing membrane to surfaces, typically roofs, using heat to bond the membrane to the substrate. This technique involves using a torch (usually a gas torch) to melt the underside of a bituminous (asphalt-based) membrane, which is then rolled onto the surface to form a seamless waterproof barrier.
The process works by:
- Heating the Membrane: The bituminous membrane is heated using a propane torch until the underside becomes tacky and soft.
- Applying to the Surface: The membrane is then rolled onto the surface (such as a roof or foundation), bonding securely as it cools down.
- Creating a Seamless Layer: The heat-fused membrane creates a smooth, continuous layer that is highly resistant to water penetration.
Torch-on waterproofing is popular in South Africa for roofing applications because of its durability, flexibility, and ability to form a reliable barrier against water and moisture. It is often used in flat or low-slope roofs, as well as areas that require long-lasting waterproofing protection. The torch-on membrane is especially effective for areas that experience heavy rainfall or have challenging environmental conditions.
