Gambrel Roof Structural Analysis

A contractor will take it to an engineer anyway.

Gambrel roof structural analysis.

Wind pressuredistribution diagram 25 4. To calculate a gambrel roof. Wind pressuredistribution 23 a. The lower slope is steeper and the upper slope is positioned at a shallow angle.

A gambrel roof is a two sided symmetrical roof that has two slopes on each side. We had to size the plate and put in the right number of fasteners as well as size the rafters. Besides its unique appearance a gambrel roof also serves to maximize the usable floor space in the attic area. A gambrel roof is a symmetrical two sided roof in which each side has two slopes one steeper and one shallower.

A gambrel style is often called a barn roof. A gambrel roof is a popular roof style on many contemporary barns and sheds. Comparative costs 23 d. A gambrel or barn style roof is simply a gable roof with a change in slope partway up the roof.

Dead loadson bamroof 28 b analysis ofthe. A gable roof has only two rafter or truss chord angles a top cut at the peak and a bottom cut at the walls. Theoretical calculation 24 b. In this video i will find the compression tension and magnitude of each member and the f.

Dutch roof was the popular term for a gambrel roof in the eighteenth century in england and north america. A traditionally framed gambrel top left requires a complicated structural analysis and extensive labor intensive reinforcing with metal hardware at each connection in order to direct uplift forces through the complex multiple load paths that exist in the frame all of which add considerable time and expense. Wind loadsonbarn roof 26 5. Gambrel roofs are symmetrical with two slopes on each side of the roof.

Area under roof si b material inframing el c. Its double or sometimes triple slopes on each side of a peak provide more space inside the roof which is attractive to homeowners too. If you plan on building and installing your own gambrel roof you ll have to draw out plans first to determine the proper dimensions.