You can consider gambrel roof to be a modified version of a gable roof.
Mansard roof structure.
Mansard roofs are for the most part based on standing seam or batten seam construction.
Mansard is a four sided roof with double slopes on each side so its sides can either be curved or flat.
The lower slope has steeper gradient than the upper one.
Here are the real advantages.
The mansard itself is used to describe the distinct roof which has double slope on four sides.
While the sides typically come in the either flat or curved.
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.
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.
It depends upon what type of design customer wants to implement.
If you are not familiar with a gambrel roof then let us first explain its architecture in brief.
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.
But you cannot misunderstand them as straight panel roofs.
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 ends may alternately attach to the base flashing where a change in roof slope occurs.
There is a sort of visible distinction between flat roofs and mansard roofs.