Garage Flat Roof Construction Details

Extra 2 x 4 wood to raise the roof where required.

Garage flat roof construction details.

I joist wood beams shaped like the capital letter i add strength to the garage and roof top. The basic construction of a flat roof starts with roofing timber that is laid across two upright items usually two walls. A flat garage roof is far easier to build than one with a pitch. A flat roof garage built with joists span the gap between two walls.

A flat roof must be strong durable and stable throughout its lifetime. The steels or rsj s rolled steel joists are often built into one or both walls to give added stability to the roof structure. But flat roofs take a pounding from harsh weather which is why they rarely last as long as a good sloped roof. Empd rubber membrane to cover the roof.

Glue to stick it to the plywood. For additional stability you can also use steel joists that are built into one or both of the walls. 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. A roof is defined in bs 6229 as a flat roof if it has a pitch of 10 degrees or less.

Traditional homes often have sections of flat roof over shed dormers above porches and garages and on balconies. Other flat roof construction details often refer to the types of flat roof coverings. Metal ties to fix the timber in place. Options for the restoration of a metal roof surface include acrylic coatings made of polymers that cure to form a durable continuous elastomeric membrane over the surface of the metal roof and can be added to metal roofing systems to address your building s specific needs around waterproofing rust and uv protection.

From there the flat roof system you choose will determine the materials you apply. It must provide adequate protection against the elements keeping the buildings structure and interior dry. A waterproof exterior layer is essential and there are a number of options including bitumen based felt or asphalt epdm rubber and pvc based systems as well as cold applied liquid systems bitumen coverings. The advantages of a flat roof garage are its efficient use of urban space control of water flow to the drainage system and its inexpensive costs.

This will give additional stability to the roof structure. Iso board to cover the roof.