Has anyone used anti condensation paint?

Jamus84

Hi all.
I have some problems with condensation in a bedroom my home, this causes mould spots on the walls. This is caused by the walls getting cold due to it being an old house with solid brick walls, no cavity to stop the surface of the wall getting cold. I ventilate the room as much as possible but it's too cold in winter to leave windows open a lot. I need to redecorate this bedroom as due to a growing family it can no longer be a spare room. I am thinking of trying some anti condensation paint in there, has anyone used it?
I know the ideal solution is to treat the cause but the solution to warming up the wall is wrapping the house in expensive exterior insulation which I can't do right now.

Doozergirl

Interior insulation would be cheaper and easier. Insulating plasterboard on the offending wall.

Anti condensation paint might help, but it isn't going to solve the problem.

Openig windows is only going to work if the room is being heated at the same time.

GwylimT

We used some on the external wall of an integrated garage in a previous house, it worked really well, just remember in a room however the condensation when running to the floor will also go behind skirting boards and eventually male them swell.

elver_man

Did try a year or so ago at a customers request.


In my opinion all it did was hide the condensation for a short while as mould started appearing several months later. It is a short term fix, you'd be better trying to cure the problem.


Depending on budget there are several things you can do from lining the interior walls with a thermal lining paper to applying a membrane and then plaster boarding over (in simple terms).


I would get a local tradesman who comes recommended to give you advice.

phill99

You need to deal with the cause of the condensation, not it's consequences.

Jamus84

Thanks for the replies all. I would love to deal with the cause of the condensation but the only solution which I know will work has a price tag over £10k so I'm looking for a cheaper solution for the time being. The condensation hasn't been bad enough to run down the wall, the wall just remains a bit damp and mould spots appear. The room below this one is just as cold and I would imagine the air is more humid because it's a bathroom and utility room bit this room has no mould on the wall, it has an almost shiny, smooth type of wallpaper which doesn't suffer from any mould spots. I wouldn't really want that type of paper in a kids bedroom so I'm wondering if the anti condensation paint could help.

WeAreGhosts

I've used this in my bathroom - seems ok so far.
The 'claypaint' is the one you want
https://earthbornpaints.co.uk

Cinquestelle

I have never used it. I feel it is asking a lot of a very thin layer of paint to deal with anything but the slightest moisture on the wall.

Before we got round to internally insulating our bathroom (which had two very cold external solid brick walls) we used Dulux Trade Mouldshield paint which contains a fungicide to stop mould developing. The guarantee was 5 years. It was good. There is a Dulux bathroom Mouldtec formulation which is the equivalent consumer product. It won't stop the condensation, but it helped keep the black mould at bay for quite a few years.

If the room is big enough I certainly recommend internal insulation. Very quick and relatively straightforward.

Doozergirl

I gave you a cheaper solution in the first post. Internal insulation on the one or two affected walls is not going to cost £10k and will do the job properly.

Ifyour budget is genuinely that of a tin of paint, then you have little option, but as said above, it's trying to alleviate symptoms, not solve the problem.

Jamus84

Doozergirl. I appreciate the suggestion but it's not a large room so I would like to avoid shrinking it. Long term I would like exterior insulation also.

sal1960

We have been battling with this in our sandstone cottage
We have now treated affected areas with a good anti mound spray and redecorated using bathroom anti mould paint deluxe I think
This with regular use of a dehumidifier has kept it at bay
Hope this helps