Mansard Roof Drainage

Historically roof drainage was ac complished by simply sloping the roof downward.

Mansard roof drainage.

The steep sided style and the double pitched styles are the two primary styles of mansard roofs. On the other hand the traditional double pitch mansard roof can produce only reasonable drainage from the low pitch area of the roof. The same can t be said about the double pitched style which only has an average drainage capability. The design thus ensures even drainage from all the sides.

This means that large amounts of water can end up standing on your roof which can cause leaks and mold growth inside your home. A history lesson on mansard roofs. Advantages of mansard roof. Gravity unsightly and unsafe most roofing materials are dragged down by gravity.

That honor would have to go to pierre lescot 1510 1578 who used this roofing style on a part of the louvre museum in the year 1550. The double pitched and steep styles are two main mansard roof styles that are mostly distinct based upon the drainage system of snow and water. The steep sided roof allows better drainage as it has sharper and longer slopes. Water could then pour off overhanging roof eaves onto the ground below or in more sophisti cated assemblies flow toward the perimeter and into a clay wood or metal gutter system or through a drainage outlet in the exterior walls.

It provides extra usable space. Design mansard roofs often look dated out of place in a neighborhood or don t match historical details of a dwelling. In france and germany no distinction is made between gambrels and mansards they are both called mansards. More prolonged and sharper slopes are better for the efficient drainage system.

Although the creation of the mansard roof is accredited to françois mansart 1598 1666 he was not the first to implement this roof architecture. The steep sides mansard roof mostly consist of a sharp point at the top of the roof. The key distinction between these two styles is the water drainage system. Drainage and rot water issues with drainage rot and interruptions of the mansard roofline for windows and doors.

On the other hand the style of the double pitched drainage system forms the most reasonable one comparatively. Mansard roofs are not ideal for areas that receive heavy amounts of rain and snowfall because the second flat slope on the upper portion of the roof does not allow for rapid drainage of runoff. The two primary styles of mansard roofs are the steep sided and the double pitched.