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 New Posts  New Build - Single Skin Garage - Condensation
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808
Posts: 127
   Old Thread  #6 15 Dec 2025 at 5.09am  0  Login    Register
In reply to Post #5
Paint and price was a consideration, but also ease. My mate reckons a proper air vent tile roof tile could help?.
Tinhead
Posts: 16907
Tinhead
   Old Thread  #5 14 Dec 2025 at 9.25pm  0  Login    Register
The OP was asking about paint but if he wants to ho down the insulation route I recently clad a single brick wall with 25mm Cellotex, plasterboard over the top and got someone to plaster it.
Plasterboard may not robust enough for a garage so you could use ply or something but as mentioned its going to be expensive.
Probably why the OP wants to use paint
framey
Posts: 5063
framey
   Old Thread  #4 14 Dec 2025 at 4.59pm  0  Login    Register
In reply to Post #3
I built a standalone shed/workshop
I battoned the blocks put polystyrene sheets between for the walls,OSB on top for fixing into.
Poly in the roof and floor as well and it’s actually warm in there and hasn’t suffered with any condensation in 15 years YET….
vossy1
Posts: 7712
vossy1
MODERATOR
   Old Thread  #3 14 Dec 2025 at 4.19pm  0  Login    Register
In reply to Post #1
Our old garage had a asbestos roof and this time of year it was always dripping. I ended up putting a drain in and ground a channel all round the foundations just inside the shed, directing the condensation with tarps to the outer wall, so it ran down into the channel.

Fast forward a move, concrete sectional with single skin steel roof, it's terrible going into winter drips on everything, Recenlty had the door/facias/window replaced and the guys who came said aren't you having the roof done I bet the condensations a mare...They said their roofs have some layer on insulation on the inside, I can only assume it's some sort of foam sprayed on and it virtually eliminates condensation. I'm thinking that may be a option for you if a retrospective thing that's done, the only alternative I can think of is boarding out but OSB is so expensive now.
Tinhead
Posts: 16907
Tinhead
   Old Thread  #2 14 Dec 2025 at 4.05pm  0  Login    Register
In reply to Post #1
Not sure if damp proof paint is what you want, I'd wait for someone with more knowledge but uou could try a paint with cork in it.
I used Rempro on a wall within a conservatory and it definitely takes the chill off the wall.

808
Posts: 127
   Old Thread  #1 14 Dec 2025 at 2.22pm  0  Login    Register
Anyone got any suggestions for cost-effective solutions to the above problem? Will painting the walls with a damp proof paint actually do much?.
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