Framing Flat Roof Construction

Skillion roofs are one of the simplest roof styles used in shed building.

Framing flat roof construction. The framing of a basic gable roof is based on a right angle triangle and the various roof framing components fit the triangle. As you may imagine there is a fair amount of weight involved here in terms of boards felt etc. Flat roofs aren t architecturally logical as rain and snow will shed much more quickly off a sloped roof. This is a completion video of a flat roof framing.

This could mean flat roofs may not raise the same red flags they used to. The rise or height of the roof at its peak is the altitude of the triangle. And the line length measurement from the roof peak to the building wall is the hypotenuse. Saltbox roofs look like skillion roofs but with an extra short slope opposite the long angled plane like an upside down check mark.

Yet for historic modern style buildings like this old house s cambridge tv project flat roofs are at the core of the architecture meant to reflect the broad horizontal lines of the natural landscape. A skillion roof is made up of a single flat plane which slopes gradually from top to bottom. Framing a roof is the last step in framing new construction. If you want a diy flat roof here are the steps to follow.

Old asbestos roofs are often replaced with flat roofs. The run or half the building span is the base of the triangle. Below is an easy to follow manual for building flat roofs including a guide to flat roof framing and installation with plenty of details and specifications about the frame. So any timber joists that are used need to be strong enough to support this weight.

Sizes of joists needed for flat roof construction. While most home builders will outsource the construction of roofing trusses the rafter supports of the roof itself learning to frame a roof yourself is one of the true arts of carpentry and a basic primer is covered below. Flat roofs are hard to replace. But now flat roofs often are constructed with fewer layers because of improved waterproofing technology.

Some observers suggest it s harder to replace a flat roof than a traditional pitched shingle roof because of the labor required to remove its layers especially on older flat roofs. This is a completion video of a flat roof framing. Of course you don t need to live in a modern house to deal with a flat roof.