Gambrel Roof Slopes

This results in that squatty appearance.

Gambrel roof slopes.

Each one offers a shallower slope that sits above a steeper one. So you have a really steep bottom pitch and a really flat top pitch. The difference between the two is that the gambrel only has two sides while the mansard has four. Most of your pre made trusses that are designed as a gambrel consist of roughly a 20 12 bottom pitch and a 4 12 top pitch.

Similar to mansard the lower side of the gambrel roof has an almost vertical steep slope while the upper slope is much lower. A gambrel roof is a two sided roof with two slopes on each side. The term gambrel is of american origin the older european name being a curb. A gambrel or gambrel roof is a usually symmetrical two sided roof with two slopes on each side.

A gambrel roof features two distinct slopes one steeper than the other to create a barn like look on homes garages and sheds. This enables it to provide the benefits of a sloped roof without compromising on space inside the structure. The name comes from the medieval latin word gamba meaning horse s hock or leg. This design provides the advantages of a sloped roof while maximizing headroom inside the building s upper level and shortening what would otherwise be a tall roof.

The picture below shows the pitch of a 7 12 roof slope meaning that for 12 of horizontal measurement roof run the vertical measurement roof rise is 7. A gambrel or barn style roof is simply a gable roof with a change in slope partway up the roof. This design is sometimes called a dutch swedish german french english or new england roof. This roof is symmetrical and the lower slopes are steeper than the ones on top.

The upper slope is positioned at a shallow angle while the lower slope is steep. Besides its unique appearance a gambrel roof also serves to maximize the usable floor space in the attic area. A gambrel roof is one that has two sides to it. This roof style offers several advantages including space drainage ease of building and affordability making it a roof style worth considering for your project.

To calculate a gambrel roof select gambrel roof from the roof type dropdown list or click on the appropriate toolbar button to calculate a gambrel roof. Construction of a gambrel roof.