Loft Conversion Roof Structure

This design is used where the original roof had little or no headroom and creates sufficient volume for an additional storey.

Loft conversion roof structure.

This could be a hip to gable loft conversion or a mansard conversion for example. 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. This option is the most expensive as it requires the complex removal and rebuild of the existing roof. Where you re adding a large dormer.

These are suitable for most types of home including terraced house loft conversions. 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. Changing the roof structure for a loft conversion. Internal roof elements to consider during loft conversions consist of a number of sub structures such as ridge boards rafters purlins joists wall plates and steel beams.

This type of loft conversion involves one or both slopes of the roof being replaced with a new structure with very steep sloping sides almost as steep as the walls. However the average dormer loft conversion with a double bedroom and en suite costs about 35 000 45 000.