Garage to Utility Room Conversion

[Sama26]

I'm looking to convert my attached, single skin brick garage into a utility room, but have found a huge amount of conflicting advice on the insulation of the walls.

I'm planning on painting the external walls with Cementone Flexible Liquid Damp Proof Membrane, screwing batons to the wall with rockwall insulation in between, and then standard plasterboard over the top.

Can anyone tell me if this will be enough to prevent any issues with damp?

Thanks

 

[noseall]

Your construction detail is neither robust nor is it thermally adequate.

I'm not a designer but you would be looking at fixing say 50mm foil sandwich Celotex insulation to the wall first then trapping that in with a 100mm stud wall with 100mm insulation between.

Fix foil back plasterboards to the stud.

Foil ape all joints on both layers of insulation.

Mastic or foam all larger insulation gaps.

Fix some 450mm DPC on the floor and lap it up the wall prior to fixing anything.

 

[freddiemercurystwin]

Untitled

• freddiemercurystwin
• 18 Jul 2010
• 7

 

[noseall]

Untitled

• freddiemercurystwin
• 18 Jul 2010
• 7

Is that an up to date and adequate (habitable) insulation detail Freddie?

Am I right in thinking that you are only showing 50mm of insulation?