How To Use Torch On Roofing Felt

Move the nozzle across the flashing to coat them in an even opaque layer of primer.

How to use torch on roofing felt.

Installing the roofing felt does take care but can go very quickly. In a two layer torch down roof the system is complete at this point. It s available in rolls that are 8m long and 1m wide with a thickness of 4 2mm mineral or 3 8mm sand. Torch on roofing or torch down roofing as it is also known is a flat roof covering solution that involves three layers of modified bitumen felt melt welded onto the roof surface and each other with the use of a blowtorch to create an impenetrable waterproof seal.

Begin at the bottom working in horizontal lines and gradually moving upward. To apply the primer hold the spray nozzle about 6 in 15 cm above the flashing. Drag it gently from one end of the roof to the other east to west or west to east. These thick layers of roofing felt are installed by heating the back of the felt with a butane torch and then carefully applying it to the roof.

At the gutter edge should be what s known as a welted drip edge. Anderson tecnatorch sbs torch on mineral felt capsheet is used as the final layer of the felt roofing process. When the two layers are pressed together they form a seal. As it is rolled out the roofing professional will use a torch to heat the bottom of the cap to the top of the base sheet.

Make sure you choose something compatible with torch down roofing. You will also find liquid primers. Apply waterproof paint or primer to promote felt attachment. The correct process for a built up torch on felt system should comprise of 3 layers one base layer manually fixed to the roof usually nailed followed by one torch on underlay with the top finished with a torch on mineral cap layer.