There are several methods and materials for the design of the exterior surface of a warm or cold flat roof.
Parts of a flat roof structure.
The main factors which influence the shape of roofs are the climate and the materials available for roof structure and the outer covering.
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.
There is nothing technically challenging about building flat roofs which incidentally are never flat but are always constructed to a fall in order to stop rainwater pooling.
Rake is an inclined edge of a roof on top of a wall.
Truss the truss is a framework comprised of wooden beams that helps to support the roof.
Roof shapes differ greatly from region to region.
Pitch slope the number of inches of vertical rise in a roof per 12 inches of horizontal distance.
Joist in a flat roof a horizontal structural member over which sheathing is attached.
Gutters are vents that carry away the trickled rainwater.
Parts of a roof decking or sheathing roof edge or eaves edge attic saddle ridge valley underlay membrane eaves membrane underlay membrane drip edge roof vents deflector plumbing vent flashing joint covers shingles.
It is the lower part of the roof that extends beyond the side of the house.
Hot tar and gravel also known as the built up roof bur this type of flat roof features three or more layers of waterproof material mixed in an alternating fashion with hot tar and a layer of smooth stone like gravel.
But it wasn t until the 1950s that cheap and reliable materials for covering these structures became widely available and this started a boom in flat roofed extensions.
Rafters these are wooden beams that run from the top of the roof to the bottom.
From wikipedia the free encyclopedia.
From there the flat roof system you choose will determine the materials you apply.
Rafter a structural member usually slanted to which sheathing is attached.
The rafters when combined together help to form the truss.
Rake the slanting edge of a gable roof at the end wall of the house.
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.
Wikimedia commons has media related to roofs by form.
Roof covering typically of flat and rectangular shapes and made of various materials such as slate wood flagstone plastic metal and composite materials.
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Fascia this is the trim used to cover the eaves.
