Roof Framing Plan For Flat Roof

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.

Roof framing plan for flat roof.

Frame the roof one important and perhaps not so obvious fact is that a flat roof is not actually flat. Ridge board v s beam. 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. Add the plywood once you ve added the framing it s time to add a layer of 5 8 inch plywood sheathing.

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. 02 filling the 2x10 rafter bays with a nice blanket of insulation. And the line length measurement from the roof peak to the building wall is the hypotenuse. Supported by lally columns.

Of course you don t need to live in a modern house to deal with a flat roof. A ridge board is a horizontal member of the roof frame. 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 8 step process for diy installation step 1.

One of the most important parts of building a sturdy roof is the initial roof framing plan. Part iii you are here 01 thats me hauling the r 38 insulation up the ladder. The rise or height of the roof at its peak is the altitude of the triangle. The point at which all the raftersare attached to.

The run or half the building span is the base of the triangle. The framing of a basic gable roof is based on a right angle triangle and the various roof framing components fit the triangle. Roof framing plans are usually required for complicated residential roof shapes and for most commercial projects. Ridge board ridge beam.

Think of a flattened hip roof. A flat roof has a slope of 1 8 per foot to 2 12. For an existing addition on a circa 1912 residence in newport ri part i. Ridge beam sits below the rafters.

It is not ideal for snow or heavy rain but modern materials and proper drainage have helped. Re framing a flat roof in preparation for a new rubber membrane. From there the flat roof system you choose will determine the materials you apply. If you build a flat roof try to have it slope in multiple directions to drains or gutters.