Step by step guide for felting a flat roof.
Flat roof torch system with 30 felt.
However a torch on roofing does have qualities that compensate its shorter life service.
Make sure the sheets lay flat against the roof.
Which roof situations are ideal for torch down roofing.
Written by larry bohan on 15 may 2018.
Follow the 10 steps below in order to felt a flat roof.
Push the sheets as close together as possible.
Including fibreglass roof kits torch on felt and liquid rubber products everything you need for flat roofing is in one place.
In terms of materials please note that there are several different weights for the roofing felt.
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.
Flat roofs are more prone to pooling water and piling snow as well as built up debris.
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.
Torch on roofing is a flat roof system which means it must be highly water resistant and durable.
Also for the majority this life cycle is already ideal due to their future plans and priorities.
However even with the most durable flat roof system you have to make sure to maintain and inspect your flat roof regularly.
A torch down roofing system is best for slightly pitched roofs between.
This type of felt roof comes on rolls and is laid with the aid of a very large blow torch that heats and melts the rear of the felt melting it onto the roof structure below.
Or it may not come close to how long other flat roofing systems last.
Torch on roofing life expectancy may not be as long lasting as you may have expected.
What is torch on roofing felt.
Hi i will try to offer the best advice i can based on your description.
No flat roof is 100 level but the slope isn t always noticeable.
If you know which way your roof slopes roll the sheets in the direction of the slope.
If the roof is completely flat torch on roofing is not typically recommended.
Typically it s applied as a 3 layer system usually consisting of a perforated underlay a 2mm underlay layer then thick 4 5mm felt.
There are many different types of flat roofing systems available each one with their own pros and cons.
12 pitch where your goals are to have a durable and long lasting roof that stands up well to the elements especially snow.
Smooth out any bubbles or creases.