Gambrel Roof Rafter Design

This series of diagrams shows just how the second floor lays out in each of our six different truss widths.

Gambrel roof rafter design.

A gambrel roof is a popular roof style on many contemporary barns and sheds. Gambrel roof framing geometry calculator inch this gambrel roof fits in a semicircle and starts as the top half of an equal sided octagon. A gambrel style shed roof offers the most storage space in the attic when compared to a gable or saltbox style shed roof. Besides its unique appearance a gambrel roof also serves to maximize the usable floor space in the attic area.

Check overhang to calculate rafter overhang equal to the lower level cut at the full rafter depth. Advantages ofthe three rafter gambrel e3 3. Main features gambrel roof design calculator. Well let s face it it s a very attractive roof design but there are practical considerations as well.

Digiammo download the pdf version of. Move slider or directly enter angle to alter sweep angle of lower rafters and change the shape. A gambrel or barn style roof is simply a gable roof with a change in slope partway up the roof. The guidelines i am about to explain for you outline the steps i use when i am designing my gambrel shed plans barn shed plans and small barn plans.

If you plan on building and installing your own gambrel roof you ll have to draw out plans first to determine the proper dimensions. Gambrel roofs are symmetrical with two slopes on each side of the roof. With no interior walls or support posts our engineered gambrel truss design optimizes useable upstairs interior space. Area under roof si b material inframing el c.

Move slider or directly enter angle to alter sweep angle of lower rafters and change the shape. Check overhang to calculate rafter overhang equal to the lower level cut at the full rafter depth. Wind pressuredistribution 23 a. Gambrel roof framing geometry calculator metric this gambrel roof confines to a semicircle and starts as the top half of an equal sided octagon.

Comparative costs 23 d. To calculate a gambrel roof select gambrel roof from the roof type dropdown list or click on the appropriate toolbar button to calculate a. Roof shape 16 b. The gambrel roof design calculator can go up against different style that when nitty gritty right can ooze a cutting edge feel.

Method ofsolution so comparisonofthree raftergambrel and standardgambrel bamroofs el a. Combinationofrafterlengths used 16 o. Theoretical calculation 24 b.