Make a normal flat or sloped roof into a beautiful living garden.
How to lay a flat roof uk.
The basic construction of a flat roof starts with roofing timber that is laid across two upright items usually two walls.
We wanted somewhere for some wildlife to have bees etc 3.
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.
Step 2 placing the felt.
Align measure and cut it to length.
I liked the idea of having a bit more greenery in the property we live in central london 2.
Step 1 prep work.
Following the manufacturer s instructions apply the adhesive to the first nailed layer.
Flat roofs were uncommon in the uk until after the second world war.
There are key differences between constructing a flat roof compared to a pitched roof and it s important to understand the basic criteria.
For additional stability you can also use steel joists that are built into one or both of the walls.
The starting point involves laying roofing joists across the two upright items which in most cases will be the walls of the structure.
Check to ensure the roof is in good enough condition to walk over.
The flat roof covering can also be epdm.
This depends on the site upon which the structure has been built.
You will be looking for any decking that has rotted or bowed.
While redeveloping our house we decided to install a living roof on our kitchen roof why you ask.
This video shows a typical flat roof replacement carried out by argyle roofing based in london uk.
The preferred design of a flat roof fall is 1 40 although this can vary and be anywhere down to 1 80.
How to lay felt on a flat roof.
Roll out the felt.
This will give additional stability to the roof structure.
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.
As described earlier these substances are a contaminate to the glues used in epdm and the membrane itself with direct long term contact.
Full replacement or over boarding of a roof deck.
Garage porch flat roofing.