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.

Make sure you choose something compatible with torch down roofing. At the gutter edge should be what s known as a welted drip edge. If its short runs you can heat it in strips but it can loose its strength if you do too much and crease up and stick to itself. 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.

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. When the two layers are pressed together they form a seal. To apply the primer hold the spray nozzle about 6 in 15 cm above the flashing. Good luck with it.

Remove old felt from the roof with your hands and a putty knife. In a two layer torch down roof the system is complete at this point. Grab loose pieces of felt and pull them off the roof with your hands. You will also find liquid primers.

If not a third layer with granules is applied in the same way. Apply pressure and chisel away at it until it comes loose. Pull out nails that are holding felt to the roof using the sharp end of a claw hammer. 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.