Hi everybody. Can someone advise me please. I have a vaulted roofspace that we intend to use for living accommodation in the future. I know that building regs require a sellotex style insulation (rigid foam) with siver foil on the faces between the rafters and again over the face before the plasterboard goes on. Not only will it reduce the space up there but the materials alone are £5,500. Now i'm for good insulation and the enviorement as much as the next man but I can't help feeling that just maybe this is a bit of overkill and the lunatics really are running the asylum now!
We have a breathable membrane under the battening. Is it ok to insulate using a loft style fiberglass or possible polystyrene and if so does an air gap need to be left between the insulation and the membrane. The whole thing will be plasterboarded. If anyone can advise I would be grateful.
Thanks,
Peter
We have a breathable membrane under the battening. Is it ok to insulate using a loft style fiberglass or possible polystyrene and if so does an air gap need to be left between the insulation and the membrane. The whole thing will be plasterboarded. If anyone can advise I would be grateful.
Thanks,
Peter