Every loft conversion must comply with local authority building regulations. This includes the requirement to submit plans to the building control department of the local authority or submit a building notice – without either of these proceedures being followed your loft space will not be classed as habitable space.
Here is a guide to some of the building regulations that may apply when converting a loft:
The photo above shows the Ridge Beam with roof joists and mansard rafters connected this is one of two Ridge Beams that support the roof joists and the mansard rafters. Follow this link to see the Mansard style loft design.
The photo above shows the Ridge Beam inserted into the party wall resting on a 40mm bearing plate. If a Ridge Beam is required for a loft conversion then the size and load requirements will vary, a structural engineer will provide advice on the specific requirements.
100mm Rockwool tightly fitted between floor joists
This loft conversion was carried out without removing the roof, as it was in a conversion area this particular council has a no extension policy, hence a conversion was allowed but the roof shape could not change. The steels were raised in via crane at the side of the property (see next photo) and pulled in by hand into position before being welded and bolted together to create the new floor.
Steel Beams being raised into side of roof space via a small entrance hole
New steel floor structure, steels are required to support the new floor and hold the new roof structure in place.
