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.
Flat roofing torch on felt.
Felt roofing also known as tar paper is traditionally installed using hot bitumen to create a secure bond between the roof and the felt.
Start at 1 end of the roof and unroll the bitumen to the other end.
Despite it not being the stronger of the two felt roofing is still a reliable choice.
Roll modified bitumen roofing sheets over the entire roof.
Roofing felt is one of the more popular and traditional methods of creating a flat roof.
Modern torch on felt roof.
However it wasn t particularly long lasting or durable so torch on felt was created.
Repeat this with each roll until the roof is covered overlapping each sheet by about 3 8 in 0 95 cm.
It s reliable and robust.
Step by step guide for felting a flat roof.
Bitumen roofing rolls can be large and heavy so get help carrying them up to the roof if necessary.
Torch on felt roofing simply describes the method in which the material is applied.
This video walks you through the steps in installing and torching felt drips on a roof and making sure it sticks well to avoid water getting underneath.
There are many different types of flat roofing systems available each one with their own pros and cons.
At roofing superstore our choice of flat roof materials includes everything you need to create a long lasting weather proof flat roof that performs and looks good too.
Follow the 10 steps below in order to felt a flat roof.
Perforated underlay a 2mm underlay layer then 4 5mm felt.
Torch on felt is generally used in combination with fibreglass underlay and plywood to create reliable durable and weathertight flat roofs.
Roofing felt is one of the oldest available options and advances made in the past decade or so have begun to move more towards the torch on approach.
In terms of materials please note that there are several different weights for the roofing felt.
Typical installations use a three layer system.