Dot and Dab / Getting it right

[Faisal Gondal]

Hi - I really need some advice here please. I have a small upstairs bedroom 3m x 2m. The plasterwork needs attention and I have stripped some walls back to brick. The walls are 9 inch none cavity. However, there is an external windowed wall which I have stripped back to brick. I would like to now if I can dot and dab this wall. I have heard all sorts of negative stories e,g cold spots etc. A few things to note there is no penetrative damp from outside. The wall it self already had dot and dab plaster board at the bottom to create a straight base for the skirting which I took off and I could not see any cold spots stains on the board. I intend to use the bedroom as a office and don't want to batten and board - Dry Line as space is a premium. Any advice would be appreciated. I have heard all sorts of rumor's about dot and dab and checked with the surveyor as I recently bought the house. He said it should be ok. Any advice would be appreciated. Thanks

 

[RandomGrinch]

I'm a DIY'er so there may be other opinions, but I have used this stuff:
https://www.toolstation.com/soudal-plasterboard-adhesive-foam/p99304
successfully many times to stick plasterboards up.
It's 'low expansion' expanding foam. Easy to use if you follow the instructions.
There's less risk of cold spots, but it may need some support until cured to stop the boards bowing out.