Roof Framing Plan Flat Roof

One of the most important parts of building a sturdy roof is the initial roof framing plan.

Roof framing plan flat roof.

When framing a flat roof you will need to create a slight incline. Often the flat roof has a slight pitch in the rafters. The run or half the building span is the base of the triangle. Ridge board v s beam.

Think of a flattened hip roof. The rise or height of the roof at its peak is the altitude of the triangle. You can do this with a foam layer that exactly fits your roof. This will help you create a flat roof framing plan.

Figure 20 9 shows how a flat roof could be repre sented on the roof plan. Figure 20 8 shows the materials commonly used to frame a flat roof. The flat roof is a very common style in areas with little rain or snow. It is not ideal for snow or heavy rain but modern materials and proper drainage have helped.

Underneath the basics flat roofs are usually constructed with a ceiling nailed to joists which support a deck usually wood in residential construction a vapor barrier insulation and a roof board. The framing style of the roof refers to the actual components of each roofing truss and the design of the structural foundation of that roof. Partially these will depend on the style of roof you ve selected but you ll also have some wiggle room depending on the design elements of the house. Parts of a roof.

And the line length measurement from the roof peak to the building wall is the hypotenuse. The point at which all the raftersare attached to. Ridge board ridge beam. A ridge board is a horizontal member of the roof frame.

Some roofs actually slope in several directions ensuring optimal water runoff. When used it must be shown on the roof plan flat roof. A flat roof has a slope of 1 8 per foot to 2 12. The framing of a basic gable roof is based on a right angle triangle and the various roof framing components fit the triangle.

Ridge beam sits below the rafters. If you build a flat roof try to have it slope in multiple directions to drains or gutters. From there the flat roof system you choose will determine the materials you apply. Supported by lally columns.

In order to do roof framing properly it is important to understand the unique shape and dimensions of your roof since these will greatly impact the geometry of the roof frame. Flat roofs are always built at a slight incline at least 1 8 inch per foot. The flat roof is economical to construct because ceiling joists are elimi nated and rafters are used to support both the roof and ceiling loads.