Gambrel Roof Slopes

This measurement is best done on a bare roof because curled up roofing shingles will impair your measurement.

Gambrel roof slopes.

Both mansard and gambrel roofs fall under the general classification of curb roofs a pitched roof that slopes away from the ridge in two successive planes. Besides its unique appearance a gambrel roof also serves to maximize the usable floor space in the attic area. A gambrel roof features two distinct slopes one steeper than the other to create a barn like look on homes garages and sheds. The usual architectural term in eighteenth century england and north america was dutch roof the upper slope is positioned at a shallow angle while the lower slope is steep.

Gambrel roofs are symmetrical with two slopes on each side of the roof. A gambrel roof can be defined as the type of roof that essentially consists of two slopes on each side i e. 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.

It is a symmetrical two sided roof. If you plan on building and installing your own gambrel roof you ll have to draw out plans first to determine the proper dimensions. A gambrel or gambrel roof is a usually symmetrical two sided roof with two slopes on each side. Its double or sometimes triple slopes on each side of a peak provide more space inside the roof which is attractive to homeowners too.

A gambrel or barn style roof is simply a gable roof with a change in slope partway up the roof. The gambrel roof style commonly seen in barns in north america is a close cousin of the mansard. A gambrel or a barn roof is much like mansard in a sense that it has two different slopes. Similar to mansard the lower side of the gambrel roof has an almost vertical steep slope while the upper slope is much lower.

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 gable roof has only two rafter or truss chord angles a top cut at the peak and a bottom cut at the walls. In a gambrel roof usually the lower slope is steep whereas the upper slope is placed at a relatively shallow angle. The difference between the two is that the gambrel only has two sides while the mansard has four.