Timber Frame Flat Roof Extension

For additional stability you can also use steel joists that are built into one or both of the walls.

Timber frame flat roof extension.

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. How much will a timber frame extension cost. This will give additional stability to the roof structure. With a timber frame extension you can achieve the weathertight stage in days rather than weeks which not only means less time spent on site but also less dependence on good weather conditions and reduced levels of disruption.

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. The basic construction of a flat roof starts with roofing timber that is laid across two upright items usually two walls. Expect to pay from around 1 800 per m2. 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.

The steels or rsj s rolled steel joists are often built into one or both walls to give added stability to the roof structure. Oak is considered a premium building material so an extension built with it will cost from 2 400 per m2. 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. 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.