Mansard Roof Extension

Architects overcome opposition to add mansard roof extension to london mews house.

Mansard roof extension. 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. Mansard roof extensions are the most cost effective way to maximise the floor area of your house or flat when compared to adding the same floor area with a rear or side extension. It can give you a spacious master bedroom with en suite or study. After a particularly contentious and protracted planning process this semi detached red bricked house part of a group of five properties that form regent s mews in affluent london nw8 finally boasts an impressive third storey extension as a result of the erection of a mansard roof.

Mansard roofs are most common on terraced victorian and georgian properties particularly in london. A mansard roof extension is an additional storey on top of your existing house property. 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. Often the existing roof will be inverted so the roof is a valley v.

A slate roof will usually cost more to alter than one with concrete roof tiles. A history lesson on mansard roofs. Although the creation of the mansard roof is accredited to françois mansart 1598 1666 he was not the first to implement this roof architecture. How the mansard roof is transforming london s space starved terraces in the race to squeeze more out of our homes home investigates how london residents are upping their game hugh graham.

What is a mansard roof extension. Another factor is whether the roof was built with a frame often found in pre 1960s homes or with wooden trusses which are easier to construct but can take less weight. Mansard roofs are a widespread and traditional method of adding an extra storey to the top of a georgian victorian or edwardian building. Replacing or reinforcing the trusses can take more work and thus increase the costs.

In terms of aesthetics the external walls of a mansard extension can be exposed brickwork rendered or clad with slate or tile whichever best fits with your property. Creates maximum space in the roof of your existing property. A mansard extension meanwhile is a way of adding extra space to a house by building a mansard roof effectively adding an extra floor to the property. Suitable for many different types of property.

Double pitched mansard extension flat topped mansard extension. 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.