Types of Loft Conversions
Dormer Loft Conversion
Dormer loft conversions create extra space in your loft. Rear dormers can run the width of the roof and create the most space.
Roof Light / Velux Loft Conversion
Roof light / Velux conversions work within the current roofline of your loft. It is unusual for these conversions to require planning permission. These are usually the cheapest option due to the fact no work to the roofline has to be done.
Hip To Gable Loft Conversion
Hip to gable conversions replace the hip of the roof (the sloped edge) with a gable end and can create a lot more space.
It is not unusual to combine these types of loft conversion when converting attic space. A common approach is to build dormers to the rear of the property, install velux windows on the front of the property and increase the lofts width by converting hip ends of the roof to gable ends.
Roof trusses and loft conversions
Houses use a truss frame to support the roof. The roof trusses often take up a lot of space in the loft and may lead you to think that you can not use the space. However it is possible to convert a truss roof by replacing the existing trusses with steal trusses that do not protrude into the loft space.