South London Loft conversions are an increasingly popular way for
homeowners to expand the useable space within their house without going through
all of the hassle and expense of moving. There are a number of different types
of loft conversions in South London but the most common is a 'dormer'. What is a
dormer and what are its benefits and disadvantages?
A dormer loft conversion will usually protrude from the rear
roof at a ninety degree angle, stepped back at least 200mm from the rear wall
of the house. Dormer loft conversions in South London significantly add to the
useable floor area by extending the height at the existing ridge for the
majority of the rear half of the property. They are constructed using an
insulated timber frame with marine ply exterior. Most dormer loft conversions
include a window or set of French doors, providing natural light and a garden
aspect.
South London loft conversions incorporating a rear dormer design
are generally hung externally in slates or tiles to match the existing roof
although can be rendered, clad in timber, lead, aluminium or any other suitable
external material. An important consideration when selecting external materials
is maintenance of the finish. Most traditional roofing materials do not require
regular maintenance however a timber or rendered finish will require regular
care which can add to the long-term costs
Most dormer conversions have a 'flat roof' which is usually
a three layer felt roof, although can be lead or a liquid poured roof,
depending on the specification required. It is possible to lay a 'green roof'
on top of the flat roof which can be a great benefit to wildlife in urban areas
and helps to regulate the temperatures in London loft conversions, especially
on very hot or cold days.
Some dormers do have a pitched roof (either with a single
pitch or a double pitch) which is often more sympathetic to the look of period
properties. The disadvantage of a pitched dormer is that it requires more
existing head height in the loft as the pitched roof adds to the overall
height. It also does not provide as much useable floor space as a standard flat
roof dormer. Yet pitched dormers are popular with planning departments as they
do not dominate the entire roof. In some cases pitched dormers are the only way
to achieve planning consent for a loft conversion in London.