Gambrel Roof Pitch Calculator

If you are thinking of a building project that involves a gambrel roof design here are a few tips to help you calculate the angles.

Gambrel roof pitch calculator. Quantity of the boards needed for the roof boarding of the whole structure. A gambrel roof design is a very distinctive attribute of barns sheds and outbuildings while the gambrel roof design is used for homes as well it is mostly found in large barns and garages because of its strength over a large area. Make that pitch 12 7 a drop of 7 inches per foot from the connection to the wall. Gambrel roof framing geometry calculator inch this gambrel roof fits in a semicircle and starts as the top half of an equal sided octagon.

7 12 or a rise of 7 inches per foot is a common top gambrel pitch. It is convenient to use the software as gambrel roof truss calculator. Reverse that for the bottom angle. Move slider or directly enter angle to alter sweep angle of lower rafters and change the shape.

Besides its unique appearance a gambrel roof also serves to maximize the usable floor space in the attic area. 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. Check overhang to calculate rafter overhang equal to the lower level cut at the full rafter depth.

A gambrel or barn style roof is simply a gable roof with a change in slope partway up the roof. Determine a pitch for the top slope of the gambrel roof the rise in inches per foot from the midpoint connection to the peak. Total area of the under laying materials taking into account the overlap.