Flat Dormitory Roof

The flat roof on these dormers gives them a boxy appearance that isn t as attractive as other types.

Flat dormitory roof.

Of course flat roofs are not flat but have a very slight roof pitch of between 1 4 to 1 2 per foot. Most roof s have a pitch in the 4 12 to 9 12 range. Flat shed and wall dormers are often quite large. 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.

Just enough slope to drain water but also flat enough to be a problem if not constructed properly. 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. This may make it less ideal for rainy or snowy climates. Modern home plans present rectangular exteriors flat or slanted roof lines and super straight lines.

These clean ornamentation free house plans. It should come as no wonder then that these are experiencing a serious comeback right now. The table below shows common roof pitches and the equivalent grade degrees and radians for each. 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 dormer has its own roof which may be flat arched hipped pointed or ornamented. Dormer windows may be built into the roof or a wall and they come in many shapes and sizes. 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 kind of roof on the dormer may complement the larger roof or other architectural details of the house.

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. 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. Large expanses of glass windows doors etc often appear in modern house plans and help to aid in energy efficiency as well as indoor outdoor flow. Flat roofs are always built at a slight incline at least 1 8 inch per foot.