DerekD

Hi Mike Thanks for your advice, particularly with regard to intumescent pads. A third hinge can be fitted to the door if required, but I would prefer to avoid it as I am concerned that the extra hinge may cause the door to bind - the door, being Victorian, is slightly warped, so although the hinges can be fitted to be in line when the door is open, they may not be as the door tries to close, and there could be too much resistance for the Perko to overcome. The Surveyor is asking for proof that the upgraded door will meet the 20 minutes fire resistance (integrity) standard required under the 1985 Regulations, and although I believe the method did follow the recommendations published by Promat at the time, I have not been able to locate the document. I can only compare it with their current document, so I am trying to get an opinion from Promat and/or their fire testers, that will hopefully satisfy the surveyor.

Hi I am looking for a little help with a Building Regs Regularisation application for a loft conversion that was carried out in the early 1990s - the process involves making sure that the works comply with the Regulations current at the time (ie 1985 Building Regulations). The Victorian panel door to the loft was upgraded to the then required FD20S standard (lining with Supalux and fitting with a Perko closer and intumescent smoke seals) and is hung on two fire rated hinges. The miodern standard seems to be three hinges together with intumescent hinge pads, but I'm not sure that either was a requirement in 1990; however I can't find when the requirement for three was introduced, and the use of the pads became a requirement. Does anyone know when either or both of these two requirements was added to the Building Regulations? Many thanks