Sorry to "wake" this thread. Here is a photo of our stand-up shower room and the ceiling mildew:
A contractor friend of ours suggest that we use a product called "marlite" for the bathroom ceiling, said that it would prevent any mildew problems like this in the future. Can anyone please comment on this please? Thanks!
Your contractor friends name doesn't happen to be Joe, does it? ..(JK)...Marlite won't help - it may make the mildew easier to clean off the surface - but chances are you're just gonna drive more mildew beneath the marlite that can't be cleaned as readily.
You need air movement - a fan - a properly vented fan - a fan vented to the outside...and you need a surface that doesn't provide a food source for mildew...and you could probably use better lighting in there. Clean the surface thoroughly & completely with a TSP and household bleach solution. Rinse with clean water thoroughly. If the mildew appears to be beneath the last coat(s) of paint, you may want to sand through the paint a bit to get the solution beneath the paint film - or remove the paint film.
Once cleaned and dried (and after the exhaust fan is properly installed) prime and paint the ceiling with an acrylic system, preferably one with a built in anti-microbial (Davis Paints Perfection / Muralo Paints Nano-Kote / California Paints - I don't remember what theirs is called / Devoe Paints Regency /or other companies that offer this type of system with an appropriate primer).
The best solution for preventing mildew is to keep it dry, keep it reasonably well lit, and make sure a food source isn't provided (soap scum, cheap paints, alkyd paints, et al). Oh...and get a fan installed.
Last edited by ric knows paint; 09-10-2012 at 06:27 PM.