On 15/11/2019 21:08:49, The Natural Philosopher wrote:
On 15/11/2019 18:23, Fredxx wrote:
On 14/11/2019 19:21:46, Paul Giverin wrote:
About 25 years ago we had a small utility room built on to our
kitchen. Its only about 1.5m x 1.5m internally and two of the four
walls are part of the existing house, i.e cavity brick/block. The
other two walls are single brick exposed to the elements. All the
walls are bare brick internally. Nothing has been plastered. It has
always suffered from some condensation on the single brick walls but
this year we splashed out and replaced the original single glazed
door and window with efficient sealed units.

With the onset of colder weather, the condensation seems to have got
worse. I was thinking about tanking/insulating the inside of the
single brick walls. When you take away the window and the door, there
is only 3 or 4 square meters of single brickwork. I was considering
simply attaching some insulated plasterboard (link below) to the
internal single brickwork using a grab adhesive. Will this plan work?


https://www.travisperkins.co.uk/ther...-38mm/p/383834



That's expensive stuff but I guess easier to apply than battens and
polystyrene infill between battens.

Polystyrene is banned except in floor screeds. Extreme fire risk.

Best tell Travis Perkins:

https://www.travisperkins.co.uk/ther...-30mm/p/752767

And Jewsons

https://www.jewson.co.uk/building-ma...-plasterboard/

And B&Q

https://www.diy.com/departments/gypr.../119541_BQ.prd

One concern using grab adhesive is how well it works with a wet wall.