Hi,
When I convert a room into bathroom (and get planning permission - thanks for note) I want to insulate the walls. The house is a Victorian brick-built end-of-terrace and the two external walls are absolutely freezing (although we *are* in the Hertfordshire polar winter currently).
As I understand I have two insulation options:
- External insulation
- Internal insulation
I don't want external cladding on my lovely two-tone Victorian brickwork.
So I need internal insulation. One wall can be dry-lined, insulated and plasterboarded as the room is big enough to take this loss of depth. However, the other external wall "abutts" the door frame and there is a 2cm "return" before the door frame on the internal wall. So, another drylined wall is out of the question - because I wouldn't be able to open the door.
If I use polystyrene sheets against the wall underneath ceramic tiles
- Would this setup this result in any thermal insulation benefit?
- Would this polystyrene surface be strong enough to support tiles or will the weight of the tiles pull the polystyrene away from the underlying plaster?
- If I had the plaster hacked off right back to the brick, could I get enough depth to usefully dryline and insulate this wall?
Thanks
Clive