Roof Framing Plan For Flat Roof

If you build a flat roof try to have it slope in multiple directions to drains or gutters.

Roof framing plan for flat roof.

Part iii you are here 01 thats me hauling the r 38 insulation up the ladder. 02 filling the 2x10 rafter bays with a nice blanket of insulation. A flat roof has a slope of 1 8 per foot to 2 12. Frame the roof one important and perhaps not so obvious fact is that a flat roof is not actually flat.

Transfers the loadof the roof through the raftersto walls below. The run or half the building span is the base of the triangle. 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. One of the most important parts of building a sturdy roof is the initial roof framing plan.

Of course you don t need to live in a modern house to deal with a flat roof. Flat roofs aren t architecturally logical as rain and snow will shed much more quickly off a sloped roof. Add the plywood once you ve added the framing it s time to add a layer of 5 8 inch plywood sheathing. Ridge board v s beam.

Re framing a flat roof in preparation for a new rubber membrane. A roof framing plan shows the size and direction of the construction 425 figure 20 1 the shape of the roof can play an important role in the design of the structure as seen in this home by the architect robert roloson. For an existing addition on a circa 1912 residence in newport ri part i. The framing of a basic gable roof is based on a right angle triangle and the various roof framing components fit the triangle.

From there the flat roof system you choose will determine the materials you apply. The 8 step process for diy installation step 1. Ridge beam sits below the rafters. 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. It is not ideal for snow or heavy rain but modern materials and proper drainage have helped. Roof framing plans are usually required for complicated residential roof shapes and for most commercial projects. A ridge board is a horizontal member of the roof frame.

Think of a flattened hip roof. Supported by lally columns. 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. The rise or height of the roof at its peak is the altitude of the triangle.