Moisture Barrier Paint?

[ConcordeRules]

I'd like to paint my bathroom ceilings with a moisture resistant paint, in order to stop moisture rising up into the loft.

I have condensation issues directly above where the bathrooms are, and no-where else, which suggests to me that the moisture is going straight up!

I will seal around the light fixings at the same time.

Any thoughts? I would imagine it has to be oil based rather than water based...

Cheers

 

[1john]

Im guessing you have spotlights?

 

[dann09]

As John indicated, moisture doesn't typically penetrate the ceiling materials, but finds a way thro the slight openings around fittings etc.

Oil paint will certainly be easier to clean, but without good mechanical extraction, condensation can form on an oil painted ceiling.

 

[DarrylAber]

im considering the same action with a paint. we also have spot lights, how would you seal them properly?

 

[ConcordeRules]

I don't have any spotlights, only a single lamp which has now been sealed with silicone filler (easier to fill than filler!) All rooms have humidistat controlled fans set at 50%.

Humidity in the house is 50-60%, it is 85%!!! in the loft.

A dehumidifier is emptying at a rate of 3L/day.

Clearly I need to sort the air flow in the loft out...