Can also be gable fronted or hipped roofed.
Loft extension roof types.
A dormer is a structural extension which builds vertically from the slope of a roof with a box shape result.
Planning permission often not needed.
These are suitable for most types of home including terraced house loft conversions.
Internally a dormer has vertical walls and a horizontal ceiling.
A flat roof is then built to meet the vertical wall in order to give maximum headroom in the loft extension.
This type of loft conversion involves constructing a vertical wall from the bottom of the sloping roof.
This is a structural extension which projects vertically from the slope of the existing roof creating a box shape.
Main types of conversions.
Dormers in particular flat roof dormers are the most popular type of conversion.
The most popular type of loft conversion is a simple flat roof dormer.
Most common type of loft conversion.
A dormer loft conversion is an extension to the existing roof that projects vertically from a sloping roof creating additional floor space and headroom within the property.
A mansard loft conversion is similar to a flat roof dormer the main difference being the front slopes at about 70o.
This type of loft conversion is most popular in traditional semi detached houses although great in any hipped roof enabling the new stairs to go over the existing stairs minimising lost space in original living area.
They are suitable for pretty much any house with a sloping roof.
There are three basic types of structural alterations.