Parts Of A Flat Roof Structure

Underneath the basics flat roofs are usually constructed with a ceiling nailed to joists which support a deck usually wood in residential construction a vapor barrier insulation and a roof board.

Parts of a flat roof structure.

Most residential homeowners think of their roofs as consisting of just a single part. Flashing or step flashing is a flat sheet of metal or plastic that is nailed over the cracks between the chimney and the main structure of the house. The roof covering or roofing which is provided over pitched roof could be in the form of tiles slates a c. Rake is an inclined edge of a roof on top of a wall.

However there are several roofing components that combine to form a waterproof protection system for your house including roofing underlayment metal flashing and rooftop sheathing. A roof deck and roof cover form the two main parts of a roof structure. The roof cover is laid over the roof deck. The structural components of roof decking in case of pitched roof is generally a truss in case of curved roof it is a shell or dome and in case of flat roof it is a flat slab.

The structural component that supports the roof cover is called a roof deck. This can be either constructed flat or sloped in the form of truss shell dome or flat slab based on the type of building the structure. A horizontal timber or metal resting at the peak of the roof. It is the lower part of the roof that extends beyond the side of the house.

From there the flat roof system you choose will determine the materials you apply. A composite decking made of solid materials.