Gambrel And Mansard Roofs

Similar to mansard the lower side of the gambrel roof has an almost vertical steep slope while the upper slope is much lower.

Gambrel and mansard roofs.

Simply put the mansard roof also known as the french roof or curb roof is a hybrid between a gambrel roof and a hip roof. The only significant difference is that a gambrel roof consists of vertical gable ends and is not hipped at the four corners of the building structure. Mansard roof type of roof having two slopes on every side the lower slope being considerably steeper than the upper. In cross section the straight sided mansard can appear like a gambrel roof but it differs from the gambrel by displaying the same profile on all sides.

A gambrel roof is positioned such that it overhangs the façade of the building. The cross section of a gambrel roof is very similar to that of a mansard roof. A mansard or mansard roof also called a duch roof is a four sided gambrel style hip roof characterized by two slopes on each of its sides with the lower slope at a steeper angle and more vertical than the upper punctured by dormer windows to create additional habitable space such as a garret. A mansard or mansard roof also called a french roof or curb roof is a four sided gambrel style hip roof characterized by two slopes on each of its sides with the lower slope punctured by dormer windows at a steeper angle than the upper.

A gambrel roof overhangs the façade whereas a mansard normally does not. The steep roof with windows creates an additional floor of habitable space a garret and reduces the overall height of the roof for a given number of habitable stories. The difference between the two is that the gambrel only has two sides while the mansard has four. The cross section of a gambrel roof is similar to that of a mansard roof but a gambrel has vertical gable ends instead of being hipped at the four corners of the building.

You can consider gambrel roof to be a modified version of a gable roof.