Flat Roof Framing Plan Details

Although flat roofs are cheaper to build than pitched roofs they have a shorter life span.

Flat roof framing plan details.

Some roofs actually slope in several directions ensuring optimal water runoff. The plan that is drawn of the roof area may be either a roof plan or a roof framing plan for some types of roofs a roof drainage plan may also be drawn. The framing of a basic gable roof is based on a right angle triangle and the various roof framing components fit the triangle. The run or half the building span is the base of the triangle.

Flat roof construction for residential. Flat roofs are always built at a slight incline at least 1 8 inch per foot. Think of a flattened hip roof. As you may imagine there is a fair amount of weight involved here in terms of boards felt etc.

When framing a flat roof you will need to create a slight incline. Old asbestos roofs are often replaced with flat roofs. It is not ideal for snow or heavy rain but modern materials and proper drainage have helped. Flat roofs are hard to replace.

Materials such as the roofing material vents and their location. Roof framing and drainage plans will be discussed in chapter 30. If you build a flat roof try to have it slope in multiple directions to drains or gutters. But now flat roofs often are constructed with fewer layers because of improved waterproofing technology.

This will help you create a flat roof framing plan. Roof plans a roof plan is used to show the shape of the roof. This could mean flat roofs may not raise the same red flags they used to. You can do this with a foam layer that exactly fits your roof.

And the line length measurement from the roof peak to the building wall is the hypotenuse. 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. Sizes of joists needed for flat roof construction. So any timber joists that are used need to be strong enough to support this weight.