Ridge board v s beam.
Roof framing plan flat roof.
In addition to being used in residential construction the flat roof is typically used on commercial structures to provide a platform for heating and other mechanical equipment.
The rise or height of the roof at its peak is the altitude of the triangle.
The run or half the building span is the base of the triangle.
The flat roof is a very common style in areas with little rain or snow.
When framing a flat roof you will need to create a slight incline.
From there the flat roof system you choose will determine the materials you apply.
This will help you create a flat roof framing plan.
And the line length measurement from the roof peak to the building wall is the hypotenuse.
Roof framing simply describes how a group of rafters and beams are fitted or joined together in order to provide support for the roof covering.
A flat roof has a slope of 1 8 per foot to 2 12.
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.
One of the most important parts of building a sturdy roof is the initial roof framing plan.
You can do this with a foam layer that exactly fits your roof.
Think of a flattened hip roof.
Ridge beam sits below the rafters.
Ridge board ridge beam.
The point at which all the raftersare attached to.
Flat roofs are always built at a slight incline at least 1 8 inch per foot.
Parts of a roof.
When used it must be shown on the roof plan flat roof.
A ridge board is a horizontal member of the roof frame.
Often the flat roof has a slight pitch in the rafters.
Figure 20 8 shows the materials commonly used to frame a flat roof.
Some roofs actually slope in several directions ensuring optimal water runoff.
If you build a flat roof try to have it slope in multiple directions to drains or gutters.
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.
Transfers the loadof the roof through the raftersto walls below.
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.
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.
The framing of a basic gable roof is based on a right angle triangle and the various roof framing components fit the triangle.
