How To Construct A Flat Roof

Of course you don t need to live in a modern house to deal with a flat roof.

How to construct 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. One important and perhaps not so obvious fact is that a flat roof is not actually flat. This is where the roof insulation sits directly on top of the timber structure thus keeping it warm and then the roofing membrane is laid over the insulation. The starting point involves laying roofing joists across the two upright items which in most cases will be the walls of the structure.

Cheaper to construct than pitched roofs and need less material to cover the same span. As the width of the concrete slab is 16 3 4 inches place the steel joists at this distance. The steel joists will provide a strong foundation for the flat concrete roofing. Once you ve added the framing it s time to add a layer of 5 8 inch plywood sheathing.

The 8 step process for diy installation. This will give it the support it requires. The steels or rsj s rolled steel joists are often built into one or both walls to give added stability to the roof structure. How to build a flat roof.

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. There are three main choices. That would be. How exactly a fall is built in largely depends on how the flat roof is built.

Flat roofs aren t architecturally logical as rain and snow will shed much more quickly off a sloped roof.