Gambrel Attic Trusses

A gambrel or barn style roof is simply a gable roof with a change in slope partway up the roof.

Gambrel attic trusses.

Note that the gambrel style roof allows for a larger attic space with a 9 ft. The gambrel roof trusses give the tops of the structures that use them a barn like appearance. This series of diagrams shows just how the second floor lays out in each of our six different truss widths. Gambrel roof trusses are a popular style used often in barn or garage construction.

Move slider or directly enter angle to alter sweep angle of lower rafters and change the shape. Room in attic trusses are professionally designed with state of the art computer programs. 28 gambrel attic truss with a 24 12 lower pitch and 7 12 upper pitch with 12 overhang. If you plan on building and installing your own gambrel roof you ll have to draw out plans first to determine the proper dimensions.

The lower slant is at a precarious point verging on being a vertical point. Besides its unique appearance a gambrel roof also serves to maximize the usable floor space in the attic area. Gambrel roofs are symmetrical with two slopes on each side of the roof. Because of the number of bends in these trusses each one is custom made to specifically fit the roof that it will be installed within.

The narrow gambrel roof shows up as a symmetrical twofold sided roof with a twofold incline on every side. With no interior walls or support posts our engineered gambrel truss design optimizes useable upstairs interior space. Ceiling and 17 ft. Residential room in attic trusses are an inexpensive way to add extra living or storage space to your home or garage while also increasing the value of your property.

Check overhang to calculate rafter overhang equal to the lower level cut at the full rafter depth. To calculate a gambrel roof select gambrel roof from the roof type dropdown list or click on the appropriate toolbar button to calculate a. Due to the overall height the truss is manufactured as a piggyback truss to allow for transportation. Gambrel roof framing geometry calculator inch this gambrel roof fits in a semicircle and starts as the top half of an equal sided octagon.

The lumber components are. Room size will vary depending on the overall size and slope also referred to as pitch of the trusses. Well let s face it it s a very attractive roof design but there are practical considerations as well.