Mansard Roof Drainage

Drainage and rot water issues with drainage rot and interruptions of the mansard roofline for windows and doors.

Mansard roof drainage. It provides extra usable space. Gravity unsightly and unsafe most roofing materials are dragged down by gravity. Although the creation of the mansard roof is accredited to françois mansart 1598 1666 he was not the first to implement this roof architecture. This means that large amounts of water can end up standing on your roof which can cause leaks and mold growth inside your home.

The key distinction between these two styles is the water drainage system. Advantages of mansard roof. On the other hand the style of the double pitched drainage system forms the most reasonable one comparatively. In france and germany no distinction is made between gambrels and mansards they are both called mansards.

Historically roof drainage was ac complished by simply sloping the roof downward. A significant difference between the two for snow loading and water drainage is that when seen from above gambrel roofs culminate in a long sharp point at the main roof beam whereas mansard roofs always form a low pitched roof. The drainage system of water and snow makes the key distinction between these two styles. On the other hand the traditional double pitch mansard roof can produce only reasonable drainage from the low pitch area of the roof.

A history lesson on mansard roofs. The longer and sharper the slopes are the better will be the drainage system. More prolonged and sharper slopes are better for the efficient drainage system. 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 steep sided style and the double pitched styles are the two primary styles of mansard roofs. Design mansard roofs often look dated out of place in a neighborhood or don t match historical details of a dwelling. The two primary styles of mansard roofs are the steep sided and the double pitched. 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 sides mansard roof mostly consist of a sharp point at the top of the roof. 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. The steep sided roof allows better drainage as it has sharper and longer slopes.