Flat Dormitory Roof

Roofs peel off from the edges so it is critical to hold them tight with the roof deck sealed on the outside we turn to flashing the edges with metal and membranes metal drip edge flashing image details roofing wrb flashing.

Flat dormitory roof.

Also known as low slope roofs flat roofs are less common in north american residential construction because the low slope of a flat roof has an increased tendency to collect water rather than shed like its more steeply pitched alternative. Flat and low sloped roofs look striking on a wide variety of architectural models especially on contemporary house designs. Flat shed and wall dormers are often quite large. However building costs for the simple style are lower and the shape maximizes space beneath the roof and allows for larger windows and their advantages.

In fact many residences have sections of flat roof on porches balconies garages and room extensions which appear so attractive. Dormer windows may be built into the roof or a wall and they come in many shapes and sizes. The flat roof on these dormers gives them a boxy appearance that isn t as attractive as other types. Most roof s have a pitch in the 4 12 to 9 12 range.

Flat roofs are always built at a slight incline at least 1 8 inch per foot. Just enough slope to drain water but also flat enough to be a problem if not constructed properly. Regardless of how new or modern a house is there is a good chance that it will be topped off with a flat roof now but if you can t picture how great they look we. The table below shows common roof pitches and the equivalent grade degrees and radians for each.

So every flat roof actually has a gentle rise and fall created by a frame that enables water to run off the roof naturally and thus avoid any problems caused by weeds or other plant matter starting to grow on the roof. The kind of roof on the dormer may complement the larger roof or other architectural details of the house. This may make it less ideal for rainy or snowy climates. Ask any architect and they ll tell you that hardly any other type of architecture is as timeless and modern as that of flat roof houses.

A pitch over 9 12 is considered a steep slope roof between 2 12 and 4 12 is considered a low slope roof and less than 2 12 is considered a flat roof. The dormer has its own roof which may be flat arched hipped pointed or ornamented. It should come as no wonder then that these are experiencing a serious comeback right now. Of course flat roofs are not flat but have a very slight roof pitch of between 1 4 to 1 2 per foot.