Loft Conversion Roof Construction

The new edition has been updated to cover the latest changes to the british regulations and extended coverage of roof attic construction.

Loft conversion roof construction.

It includes information on loft to attic room conversion. Changing the roof structure for a loft conversion. Hip to gable loft conversions are most commonly found on the side of either end terrace or semi detached houses. However the average dormer loft conversion with a double bedroom and en suite costs about 35 000 45 000.

The hipped or sloping side roof is removed and the end wall is then built up straight to form a new vertical gable. A flat roof dormer loft conversion ranges from 12 000 to 56 000. This could be a hip to gable loft conversion or a mansard conversion for example. Where you re adding a large dormer.

The most common style of structural loft conversion these are an extension to the existing roof building out sections with vertical walls from the roof to add floor space and room for windows. A flat roof dormer is appropriate when you have to maximize every inch of available height for the loft. Since the roof has no pitch you ll need to add sufficient drainage. Gable to gable loft conversions include a new box extension that spans the space between each gable end.

These are suitable for most types of home including terraced house loft conversions. Most loft conversions employ at least one pair of steel beams to support the new floor structure and the roof slopes at purlin level and sometimes also at ridge level e g. Installing gutters and downspouts costs 600 to 1 500.