Triple Pitch Gambrel Roof

Besides its unique appearance a gambrel roof also serves to maximize the usable floor space in the attic area.

Triple pitch gambrel roof.

In other words if you start with a say 14 12 bottom pitch your top pitch should be 7 12 or greater. When you are designing your shed roof whether it be a gambrel gable or saltbox you should never have any roof pitch less than a 3 12. A gambrel style is often called a barn roof. The rule of thumb that i use when designing a gambrel is that the top pitch should be no less than half the pitch of the bottom.

Remember roof pitch isn t just for aesthetics. Gambrel roof framing geometry calculator inch this gambrel roof fits in a semicircle and starts as the top half of an equal sided octagon. If at all possible it looks the best at exactly half. The slope of your roof is vital as a moisture barrier among other things and having a roof that is too flat can potentially cause your shed to cave in.

A gable roof has only two rafter or truss chord angles a top cut at the peak and a bottom cut at the walls. Roof pitch calculator is great for calculating the pitch of your shed roof. To calculate a gambrel roof select gambrel roof from the roof type dropdown list or click on the appropriate toolbar button to calculate a. A gambrel has four angles at the peak at the wall and where the two rafters or truss chords connect.

The shallower the top pitch the more squatty it will look. Move slider or directly enter angle to alter sweep angle of lower rafters and change the shape. This means that for every 12 horizontal run you must have at least 3 of rise. Its double or sometimes triple slopes on each side of a peak provide more space inside the roof which is attractive to homeowners too.