I live in a 1911 terraced house. The rear bedroom has two external walls (double brick, no cavity as far as I'm aware) and gets very cold despite there being 270mm of rockwool insulation above in the roof.
Whilst the heating is on, the room is really hot but as soon as the heating goes off all the warmth is lost.
I'm thinking of removing the plaster from the two external walls (to minimise the loss of internal space) and then fitting insulating plasterboard such as Celotex PL4000, Kingspan K18, or a Gyproc Thermaline variant.
However, someone mentioned Marmox board. What are the advantages/disadvantages to Marmox over PIR board?
Are there any other boards I should be considering? (I'm just an enthusiastic DIYer so not particularly knowledgeable in this area).
Also, assuming I go for a PIR board any suggestions of thickness? Obviously it's only worth doing if it makes the room warmer but it's not the biggest room in the house and so I'd like to minimise the loss of internal space.
Thanks
Whilst the heating is on, the room is really hot but as soon as the heating goes off all the warmth is lost.
I'm thinking of removing the plaster from the two external walls (to minimise the loss of internal space) and then fitting insulating plasterboard such as Celotex PL4000, Kingspan K18, or a Gyproc Thermaline variant.
However, someone mentioned Marmox board. What are the advantages/disadvantages to Marmox over PIR board?
Are there any other boards I should be considering? (I'm just an enthusiastic DIYer so not particularly knowledgeable in this area).
Also, assuming I go for a PIR board any suggestions of thickness? Obviously it's only worth doing if it makes the room warmer but it's not the biggest room in the house and so I'd like to minimise the loss of internal space.
Thanks