As you have already read, building regulations have to be applied to all alterations to a building, but which ones apply to a roof raise or roof lift. That’s easy, they all do; from the base construction, to the electrical work, through to the insulation level and fire safety, they all apply to a all roof lifts and loft conversion just the same.
It would be silly of me to list all of the core regulations here, so here is a quick summary of the big ones, not always the most obvious:
1) Construction – Any change to the building, must comply with very strict regulations as to what can be done and how. The construction of a dormer loft conversion, must be made to a minimum standard, such as the rafters being double bolted and so on. All of this means that the property is sturdy and able to take the weight and strains it could be out under from you and the great British weather.
2) Fire Doors – I don’t have to explain why this is here, but it does ensure that you are able to escape the building, safely and with minimal risk to you and your family. Different rules apply to different types of buildings, such as bungalows and houses. The main difference is escaping from a window above first floor level is not deemed suitable, so internal fire doors are needed.
3) Floor & beams – It is unlikely that the existing ceiling joists will be adequate to support the loft conversions weight. To overcome this new floor joists are needed, and these must be supported correctly either via supporting walls or steel beams.
4) Sound Insulation – This is required between habitable rooms. With a terraced or semi-detached house, the building control body may also ask for sound insulation between the converted loft and the neighbours loft to be improved.
The list goes on and on, but you get the idea. TVM Lofts have years of experience dealing with the regulations, and work closely with the local authority and supporting bodies to ensure our loft conversions are 100% within the regulations. On almost every occasion, the roof space when we have finished is more structurally capable than when we started…