Mansard Roof Construction Details

If you are not familiar with a gambrel roof then let us first explain its architecture in brief.

Mansard roof construction details.

You can consider gambrel roof to be a modified version of a gable roof. The ends may alternately attach to the base flashing where a change in roof slope occurs. But you cannot misunderstand them as straight panel roofs. Lap the roof underlay over the mansard underlay by minmum 150mm.

Mansard is a four sided roof with double slopes on each side so its sides can either be curved or flat. Mansard roofs are for the most part based on standing seam or batten seam construction. The lower ends of the pans are typically hooked over an edge strip to form a drip. There is a sort of visible distinction between flat roofs and mansard roofs.

The mansard is particularly well suited to renovation work on pitched roof houses because the upper story can be enlarged without adding extra height to the structure. It is similar to a gambrel roof but differs in that it displays the same profile on all sides whereas a gambrel roof has vertical gables at either end. 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. It depends upon what type of design customer wants to implement.

Mansard roof with mansard tiles ensure that a clear ventilation path is maintained from eaves to ridge where insulation is positioned between the rafters.