Plans For Flat Roof Extension

Mark hazeldine homeowner helen was keen that the extension to her 16th century cottage should mirror the older sections of the house.

Plans for flat roof extension. Both extensions feature flat green sedum roofs that offer a striking contrast to the pitched roof of the original property. You ll probably have to build the same kind of roof as the main house rather than a flat roof. Moreover the costs of a flat roof extension today are typically lower than for a pitched roof. So any timber joists that are used need to be strong enough to support this weight.

Frees up internal space. The flat roof extension is more on trend than it once was and is free of the dreaded leaks that haunted this type of structure in the past. The addition of a parapet makes a flat roof far safer providing a small barrier that provides additional security to reduce the likelihood of anyone standing the roof falling over the edge. Sometimes planning restrictions mean a flat roof is the most suitable course of action especially if you re working on a single storey extension.

Choosing a flat roof design. The foundations must be able to support the additional weight. Old asbestos roofs are often replaced with flat roofs. Catslide roof on sympathetic extension image credit.

Building a two storey extension has one main advantage that outweighs all others. Upstairs windows must be suitable for a fire escape. In fact many residences have sections of flat roof on porches balconies garages and room extensions which appear so attractive. Whilst a felted flat roof is quick easy and cheap you run the risk of leaks and the roof has a reduced lifespan compared with a pitched roof typically 10 15 years compared to 20 30 years or more for pitched.

In general a warm roof is preferable from a construction angle but it does lead to a higher roof profile which isn t always. Many georgian properties were constructed with flat roofs often featuring parapets for example. This might be enough to extend by around 4m right across the back of a typical semi or detached house with either a flat or low pitched sloping roof as a single storey or side return extension both ideal for creating a large open plan kitchen diner. Applying flat roof extension design ideas.

There are many advantages to using a flat roof. Sizes of joists needed for flat roof construction. Getting to know the facts of flat roof style. A felted flat roof is easily insulated and it can work in almost any shaped extension.

Extension plan is an architectural. It is the standard method employed on flat roofed extensions but it is rarely used for new builds today. Flat and low sloped roofs look striking on a wide variety of architectural models especially on contemporary house designs.