Hi - first post so go easy!
I have a ground floor flat roof extension that I am renovating. It is built onto the gable of the main house and therefore has 3 external walls. The walls are cavity block built in around the mid 80's. Since moving in 3 years ago, I have had the cavity filled with bonded bead insulation. I want to improve the internal wall surface and re-wire the room with new electric sockets and install some new radiators. The existing walls are not in great condition and are painted render rather than finish skim. I have been advised that trying to skim onto the walls is not a good idea. Better to put up plasterboard. Currently, I have stripped out all the old electrics and plumbing and have took off old skirting so I just have bare walls. I would like to have a bit more insulation in the walls as it is a pretty cold room. Also need to route cables and pipework behind board . I would like to try and get some advice on best way of adding some insulation and suggested insulation thickness without losing too much space all around. I initially thought of building stud work all around and cutting rigid insulation to fit in between. I was thinking of around 40mm insulation. This is quite a lot of work and maybe over the top? Would I be better off using a plastboard/insulation all in one product and 'dot and dabbing'? Any advice greatfully received. I have got a relative primed to do the work and although he has done quite a lot of general building work, he has never called the shots on what to do as far as this situation is concerned.
I have a ground floor flat roof extension that I am renovating. It is built onto the gable of the main house and therefore has 3 external walls. The walls are cavity block built in around the mid 80's. Since moving in 3 years ago, I have had the cavity filled with bonded bead insulation. I want to improve the internal wall surface and re-wire the room with new electric sockets and install some new radiators. The existing walls are not in great condition and are painted render rather than finish skim. I have been advised that trying to skim onto the walls is not a good idea. Better to put up plasterboard. Currently, I have stripped out all the old electrics and plumbing and have took off old skirting so I just have bare walls. I would like to have a bit more insulation in the walls as it is a pretty cold room. Also need to route cables and pipework behind board . I would like to try and get some advice on best way of adding some insulation and suggested insulation thickness without losing too much space all around. I initially thought of building stud work all around and cutting rigid insulation to fit in between. I was thinking of around 40mm insulation. This is quite a lot of work and maybe over the top? Would I be better off using a plastboard/insulation all in one product and 'dot and dabbing'? Any advice greatfully received. I have got a relative primed to do the work and although he has done quite a lot of general building work, he has never called the shots on what to do as far as this situation is concerned.
