How To Use Torch On Roofing Felt

Begin at the bottom working in horizontal lines and gradually moving upward.

How to use torch on roofing felt. It s available in rolls that are 8m long and 1m wide with a thickness of 4 2mm mineral or 3 8mm sand. At the gutter edge should be what s known as a welted drip edge. The top membrane sheet to a torch down roofing system is a smooth cap sheet. In a two layer torch down roof the system is complete at this point.

Apply waterproof paint or primer to promote felt attachment. Use a 4 inch 10 cm paintbrush or a roller to apply the paint or primer. Move the nozzle across the flashing to coat them in an even opaque layer of primer. Taking the time to properly prepare the sheathing will make all the difference in how quickly and easily the felt paper is installed.

Installing the roofing felt does take care but can go very quickly. 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. You will also find liquid primers.

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. 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. 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.