Insulated plasterboard

[Smk80]

Hi there I live in a 1930s semi detached so no cavity wall. One of our bedrooms has an outside wall and we have noticed a lot of condensation appearing on the outside wall as we move into the colder months. We do air the room but cannot leave the window open of an evening as the room gets very cold and it is our daughter room. Same problem with the open/shut vent in the wall.

Would putting a layer of insulated plasterboard on the wall help? If so is there any specific brand or thickness that is recommended?

Thanks all

 

[motorbiking]

Yes it might.

You might want to consider taking the plaster back to brick in order to not lose space, but that is probably another days work and a bit messy. You Also don't need insulated PB you can use standard PIR (Celotex, kingspan etc) and attach PB to that using PB foam adhesive (tool station / screw fix soudel is good. A bit cheaper, but more work than insulated PB.

You will need some screws/rawl plugs too to secure it.

Soudal Genius Gun Plasterboard Adhesive Foam

Soudal Plasterboard Adhesive Foam is a fast curing replacement for traditional mortar adhesives. Use it to fill cavities and for bonding plasterboard to walls. You'll find that this foam is suitable for use on all common materials such as concrete, stone, plaster and wood.The adhesive comes...

www.toolstation.com

Do not batten the wall make sure its complete air tights so now warm air can get behind the insulation.
50mm will make a big difference. However if there is a non-double glazed window, start with that.

leaving the internal door open also makes a big difference.

 

[Smk80]

Yes it might.

You might want to consider taking the plaster back to brick in order to not lose space, but that is probably another days work and a bit messy. You Also don't need insulated PB you can use standard PIR (Celotex, kingspan etc) and attach PB to that using PB foam adhesive (tool station / screw fix soudel is good. A bit cheaper, but more work than insulated PB.

You will need some screws/rawl plugs too to secure it.

Soudal Genius Gun Plasterboard Adhesive Foam

Soudal Plasterboard Adhesive Foam is a fast curing replacement for traditional mortar adhesives. Use it to fill cavities and for bonding plasterboard to walls. You'll find that this foam is suitable for use on all common materials such as concrete, stone, plaster and wood.The adhesive comes...

www.toolstation.com

Do not batten the wall make sure its complete air tights so now warm air can get behind the insulation.
50mm will make a big difference. However if there is a non-double glazed window, start with that.

leaving the internal door open also makes a big difference.

Thanks - in terms of securing with screws do you mean just the PIR or securing all the way through the plasterboard and PIR into the wall?

 

[motorbiking]

Into the wall. Its also helps to improve fire resistance.

 

[kp00110]

i used the same adhesive to attached the insulated plasterboard direct to the bricks. Removed the old plaster right back to bare brick, but the walls were built out of line and level so bad i opted to insuilated plasterboard as oppose to PIR as its more rigid and held itself nice with line and level. That foam is really good. Used foil backed insulated plasterboard which is supposed to stop the condesation risk