Here are the real advantages.
Mansard roof structure.
Mansard is a four sided roof with double slopes on each side so its sides can either be curved or flat.
The mansard itself is used to describe the distinct roof which has double slope on four sides.
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.
But you cannot misunderstand them as straight panel roofs.
You can consider gambrel roof to be a modified version of a gable roof.
Mansard roofs are for the most part based on standing seam or batten seam construction.
There is a sort of visible distinction between flat roofs and mansard roofs.
Mansard means the attic or space inside the roof structure rather than just the shape of the roof.
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.
Due to its design in the extremely close to nature of this attic space a mansard roof is very efficient in terms space management and the format is related to green roof design.
The lower ends of the pans are typically hooked over an edge strip to form a drip.
It depends upon what type of design customer wants to implement.
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.
After the initial popularity the mansard roof was revived during the re building of paris and became an extremely fashionable feature in architecture for most of the buildings during the second empire 1852 1870 a period during the rule of napolean iii.
The ends may alternately attach to the base flashing where a change in roof slope occurs.