Timber Frame Flat Roof Extension

The basic construction of a flat roof starts with roofing timber that is laid across two upright items usually two walls.

Timber frame flat roof extension.

This will give additional stability to the roof structure. In ni you are allowed to extend your house by up to 70mcu or 15 of the original house volume whichever is the greater if it is detached or semi detached. In the case of a flat roof extension the height of the highest point of the roof must not exceed the parapet or eaves of the existing roof. So whether your new flat roof is to be made of timber concrete or felt or a combination of these materials you need to comply with flat roof building regulations.

The steels or rsj s rolled steel joists are often built into one or both walls to give added stability to the roof structure. Expect to pay from around 1 800 per m2. For additional stability you can also use steel joists that are built into one or both of the walls. On a basic level flat roof construction comes in the form of roofing timbers or joists as they are more commonly known or steels that are laid across two uprights walls in most cases.

Oak is considered a premium building material so an extension built with it will cost from 2 400 per m2. A timber frame extension usually costs less than a traditionally built extension because there are fewer labour hours involved in the construction. There are many benefits to building a timber frame extension and not just the extra space and added value that it gives to your home. When installing or repairing a flat roof you must adhere to building regulations.