The hot applied asphalt or coal tar pitch blends with the bitumen soaked roof felt and creates a monolithic roof membrane.
Flat roof roofing felt.
Roof felt adhesive e g.
Felt roofing also known as tar paper is traditionally installed using hot bitumen to create a secure bond between the roof and the felt.
However it wasn t particularly long lasting or durable so torch on felt was created.
While laying felt is not an easy job it can be done by anyone who has the patience to deal with it.
The substance itself is made from bitumen which comes from the distillation of crude oil that has been either mixed with sand or crushed limestone.
This guide will use the more durable 30 roofing felt although you can use 15 felt.
Step by step guide for felting a flat roof.
Check to ensure the roof is in good enough condition to walk over.
Here are simple steps to get you started.
Built up roofs are installed using several layers of a special type of roofing felt that has been asphalt impregnated and embedded in bitumen applied with a hot mop.
30 pound roofing felt also known as 30 roofing felt plywood planks.
Bitumen in terms of materials please note that there are several different weights for the roofing felt.
Bituminous felt is a form of waterproof sheeting that is used to cover flat roofs or as an underlay beneath slate or tile roofing.
Roofing felt is one of the more popular and traditional methods of creating a flat roof.
Felt is laid on a flat roof to help keep the roofing system waterproof.