How To Lay A Flat Roof Uk

Step 1 prep work.

How to lay a flat roof uk.

Beginning with the removal of the old roofing felt this. Check to ensure the roof is in good enough condition to walk over. Make a normal flat or sloped roof into a beautiful living garden. Unless the flat roof is a new build you will be replacing an existing flat roof normally a felt roof such as built up bitumen or asphalt.

This depends on the site upon which the structure has been built. Flat roofs were uncommon in the uk until after the second world war. How to lay felt on a flat roof. There are key differences between constructing a flat roof compared to a pitched roof and it s important to understand the basic criteria.

This flat roof covering can be roofing felt usually 3 layers with a mineral chipping topping to soak up the heat of the sun which protects the felt from both melting and breakdown under uv rays. For additional stability you can also use steel joists that are built into one or both of the walls. Step 2 placing the felt. The starting point involves laying roofing joists across the two upright items which in most cases will be the walls of the structure.

The basic construction of a flat roof starts with roofing timber that is laid across two upright items usually two walls. Roll out the felt. Roll back one half of the length of the sheet to the centre of the roof taking care to maintain the sheet alignment. Following the manufacturer s instructions apply the adhesive to the first nailed layer.

The preferred design of a flat roof fall is 1 40 although this can vary and be anywhere down to 1 80. Full replacement or over boarding of a roof deck. I liked the idea of having a bit more greenery in the property we live in central london 2. You will be looking for any decking that has rotted or bowed.

The flat roof covering can also be epdm. As described earlier these substances are a contaminate to the glues used in epdm and the membrane itself with direct long term contact. While redeveloping our house we decided to install a living roof on our kitchen roof why you ask. We wanted somewhere for some wildlife to have bees etc 3.

This will give additional stability to the roof structure. Garage porch flat roofing.