Roof Framing Plan For Flat Roof

A ridge board is a horizontal member of the roof frame.

Roof framing plan for flat roof.

For an existing addition on a circa 1912 residence in newport ri part i. Supported by lally columns. 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. Think of a flattened hip roof.

If you build a flat roof try to have it slope in multiple directions to drains or gutters. Frame the roof one important and perhaps not so obvious fact is that a flat roof is not actually flat. The framing of a basic gable roof is based on a right angle triangle and the various roof framing components fit the triangle. Add the plywood once you ve added the framing it s time to add a layer of 5 8 inch plywood sheathing.

Re framing a flat roof in preparation for a new rubber membrane. Flat roofs aren t architecturally logical as rain and snow will shed much more quickly off a sloped roof. It is not ideal for snow or heavy rain but modern materials and proper drainage have helped. Parts of a roof.

Roof framing plans are usually required for complicated residential roof shapes and for most commercial projects. 02 filling the 2x10 rafter bays with a nice blanket of insulation. The run or half the building span is the base of the triangle. Ridge beam sits below the rafters.

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. Ridge board ridge beam. One of the most important parts of building a sturdy roof is the initial roof framing plan. The point at which all the raftersare attached to.

The rise or height of the roof at its peak is the altitude of the triangle. 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. Transfers the loadof the roof through the raftersto walls below. Part iii you are here 01 thats me hauling the r 38 insulation up the ladder.

Of course you don t need to live in a modern house to deal with a flat roof. A flat roof has a slope of 1 8 per foot to 2 12. And the line length measurement from the roof peak to the building wall is the hypotenuse. The 8 step process for diy installation step 1.