The most basic loft conversion type is the rooflight loft conversion. The rooflight conversion involves no major external roof works, apart from fitting the rooflights.
Apart from the roof works, everything else is already in place, including a floor and internal structure, staircase, electrical, plumbing, plastering and all carpentry. A rooflight conversion will not maximise the potential of the loft conversion but in most cases a rooflight conversion is all that is required. where the room in the loft and the ridge height is very good, this type of conversion will work to provide adequate room and an en-suite. Furthermore, this type of conversion is normally cheaper than a dormer loft conversion.
This the most popular type of loft conversion. A dormer is typically a rear roof extension, the rear pitch of the roof is removed and replaced with a dormer construction.
There are various types of dormer, a flat roof dormer, pitched roof with endless types of dormers. The rear dormer could be L shaped or a double dormer. The type of dormer you choose will depend upon your property and your personal preference. If you live in a Victorian terrace your loft conversion could be a rear flat roof dormer and a L shaped dormer which extends over the main and rear roof.
HIP TO GABLE
If you live in a semi detached or end terraced home your roof could be a hip blade roof, that is the roof is not gabled. A hip to gable loft conversion is required. The hipped roof is converted to a gable which make more room in the new loft space. This type of loft conversion is common with 1930s to 1960s semi detached homes and end terraces from Victorian times up to the 1960s. A hip to gable will involve more work so tends to be more expensive than a typical rear dormer loft conversion.
MANSARD LOFT CONVERSION
A mansard loft conversion is quite popular in London and this type of conversion is normally the preferred if the planning department or customer prefers that type of dormer. The dormer construction is a flat roof dormer with an angled dormer face, usually 72 degrees and brick dormer cheeks. The windows in the dormer face are built out to create an attractive roof extension