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Conversions

Insulating a Garage

Anonymous user 23/02/2024 - 3.39 PM

Hello, We have an extension (previous owners) whereby they converted an existing 1 third size garage into a study. They never insulated the front wall - where the garage door used to be. This is now a window with a type of pvc cladding (?) underneath. However it gets insanely cold!!! The other three walls are all insulated as part of the main house and there is also a radiator. This front wall is just a single skin. Am i right in thinking i can ‘stud’ the walls and then fit a cellotex/kingspan foil lines insulation and plasterboard over the top? So i need barrier control membrane? Vapour barrier? There would be no way of creating a void. Also ceiling and floor already insulated so this does feel like an oversight!

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4 Answers

Weighill Builders Ltd

No reviews yet

Croydon
Your assumptions are correct with regard to the level of insulation required, you should also consider wether a foundation was required by the local authority Building Control to carry the single skin of brickwork, nearly all of these I have been involved with require a foundation or beam at least Regards Paul S Iles Surveyor
Answered6 March 2021
1

Bridalway construction

No reviews yet

Broadstairs
What you say is correct however if you have the space you can stud the wall using 100x50 timber then use 50mm celotex insulation boards this will then give you a 50mm void.
Answered6 March 2021
0

Patrick Thompson

Rating: 5 out of 5
Orpington
Are you sure it’s just a single skin wall, if you are tight then you can batten this wall out (but don’t forget that celotex comes thicker then the battens) then plaster board over and skim. You will require a deeper window board. Maybe if possible run a new rad under the window. Good luck.
Answered6 March 2021
0

Saladan Solutions

Rating: 5 out of 5
Poole
From the sound of it, it is unlikely that building control were involved. You should have a certificate of completion. They should have been. The other question is the floor, when you say insulated, what do you exactly mean? Is there a 4inch celotex insulation barrier under the screed? Or do you mean a 3mm laminate floor insulation? How do you know exactly what floor and ceiling insulation has been used? There will undoubtedly be a thousand questions that can be asked about the project undertaken by the previous owners. Is there any way of asking them?
Answered12 March 2021
0