How To Fit Roofing Felt On A Flat Roof

Some roofing felts are actually glued down.

How to fit roofing felt on a flat roof.

Bituminous felt is a form of waterproof sheeting that is used to cover flat roofs or as an underlay beneath slate or tile roofing. Bitumen in terms of materials please note that there are several different weights for the roofing felt. Buy the roof felt. You can hammer in the nails along the bottom edge of the roof at wider intervals around one every 30cm.

The rolls of felt are quite heavy and to avoid damage must be handled with care. Roof felt adhesive e g. For easier cutting unroll the material on a flat surface and use a hooked blade knife to cut the felt to the size of your shed s roof. 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.

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. Allow for felt overhang. Roll out the first layer of felt. This type of flat roofing felt has been in use for decades and is still used today.

Installing the roofing felt does take care but can go very quickly. 1 what you will need when felting a shed roof. 30 pound roofing felt also known as 30 roofing felt plywood planks. Check to ensure the roof is in good enough condition to walk over.

2 the process of felting a shed roof. Here are simple steps to get you started. Add new felt layers. Step 1 prep work.

This guide will use the more durable 30 roofing felt although you can use 15 felt. The best time to lay a felt roof using cold applied adhesive is when the weather is warm but this means that working on a flat roof can be exhausting work with the sun s heat and the heat reflected from the felt already laid. Felt is laid on a flat roof to help keep the roofing system waterproof. Layers of bitumen felt are heat welded onto each other to form an impenetrable barrier.

1 built up torchon felt system. These applications are ideal for flat roofs or protective surfaces under roof level decks. To attach roof felt on a shed start by calculating the area of your roof and buying enough felt to cover it. Here is a video showing how the felt is installed on the flat roof.

Apply the cut felt to either side of the roof pulling it tight so that it lies flat before nailing it at around 10cm intervals along the length of the roof just below the apex. Tack and secure the felt.