*
I painted my bathroom ceiling last spring. The ceiling is plasterboard. I cleaned the mildew over the shower area with a bleach mixture, let it dry for a day, then painted. It seems the paint I used didn’t adhere well, and now I need to do the job again. Did I do something wrong in the prep stage? Any tips on how to proceed or on materials to use (oil vs. latex paint)? Do I need to strip the ceiling of all paint?
Discussion Forum
Discussion Forum
Up Next
Video Shorts
Featured Story
Listeners write in about haunted pipes and building-science tomes, and they ask questions about roof venting and roof leaks.
Featured Video
How to Install Exterior Window TrimHighlights
"I have learned so much thanks to the searchable articles on the FHB website. I can confidently say that I expect to be a life-long subscriber." - M.K.
Replies
*
I would strip the paint to the extent you can do so. Skim coat some drywall compound over areas which might need it.
I would then apply I good high quality interior wall primer (I like oil, but water based latex is more popular).
Then apply a good high quality latex finish coat(s).
Mildew problems? Whats up with that? You seem to have some excess moisture which needs to be dealt with. Either enclose the shower completely and tile all 6 sides, or vent the bathroom.
I, along with some others, am not a big fan of bath vents, (opening a window is cheaper and better) but I there is a place for everything, and you may be a prime candidate for a bathroom exhaust fan.
Hope this helps.
*
Scrape off any loose paint and fill with drywall compound as needed.
Apply a few coats of an alcohol based primer. You can then apply a few coats of semi-gloss latex or aklyd but make sure you buy one made especially for bathrooms and that is says it has a fungicide in its formula. You may pay a bit more but you are guaranteed that those mold spores will not come back.
INSTALL a bath fan for that added protection to not only your walls but to everything else that absorbs all that moisture and can be damaged.
You get more heat loss in cold climates by opening a window AFTER the shower then you do by running a fan while IN the shower.
Rainie
*As much as I like to us latex produces at work, I wouldn't use any latex over old oil.I had the same problem in my own bathroom.-proper air flow-drywall compound were needed-oil primer-latex top coatand now I have to do it over.I recommend a flat sheen oil product for you my friend. The cleanup sucks but you won't be redoing your bathroom in the spring.
*Whoa - correct me if I'm wrong, but aren't alkyd paints made from a vegetable oil compound and therefore more likely candidates for moulds and mildews?Definately agree with Rainie on this one - Really think your best bet is a latex paint formulated for bathrooms with a high mould and mildew inhibitor or fungicide.
*
Tom,you didn't mention whether you rinsed the ceiling after the bleach treatment, if not, that will contribute to the paint failure. I would recommend Muralo brand int./ext. primer. It will go over all paints,even gloss oil,without sanding. It is recommended to wash with TSP then rinse with clean water, let dry and prime, finish with a flat,flat ceiling white by the same company.I've had GREAT results and won't use anything else.hope this helps!
Geoff
P.S. this all assumes you don't have a calcimine paint on your ceiling, also you should vent the bath after EVERY shower use, this will keep the mildew away.
Geoff
*
I painted my bathroom ceiling last spring. The ceiling is plasterboard. I cleaned the mildew over the shower area with a bleach mixture, let it dry for a day, then painted. It seems the paint I used didn't adhere well, and now I need to do the job again. Did I do something wrong in the prep stage? Any tips on how to proceed or on materials to use (oil vs. latex paint)? Do I need to strip the ceiling of all paint?