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Old 02-18-2008, 02:08 PM   #1
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Paint to Fix Moisture Problems on Ceiling


In my apartment, I am starting to see the paint crack on the ceiling just above the shower. The moisture is clearly having a negative effect and causing the ceiling to spot (mold?) as well. Is there a kind of paint I can use to fix this issue? Thanks very much!

Ryan

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Old 02-18-2008, 02:35 PM   #2
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Paint to Fix Moisture Problems on Ceiling


Unfortunately, you actually need to do a little more than paint to fix this.

1.) Do you have an exhaust vent installed in your bathroom? If so, is it operational? You need to try and get any excess moisture out of the bathroom, to avoid the problems coming back.

2.) The cracked area should be scraped down and may be re-coated with drywall compound to smooth it out. coat, repeat until smooth and sand.

3.) Apply a mildew-resistant primer and paint.

Example: http://www.zinsser.com/product_detail.asp?ProductID=35

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Old 02-18-2008, 04:23 PM   #3
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Paint to Fix Moisture Problems on Ceiling


No paint will fix the moisture issue, but some are more moisture resistant than others

Atlantic's suggestions are good ones, but I would add the exhaust fan needs to be operational and vented to the outside, not merely venting to the ceiling or an attic
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Old 02-18-2008, 04:32 PM   #4
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Paint to Fix Moisture Problems on Ceiling


I was told by someone to scrape the paint away and use Killz to prime the ceiling. Unfortunately, I don't have an exhaust fan, only one of those ceiling heaters. I'd hand this problem over to the landlord, if i ever thought it'd get done. But, I fear if I wait long, it'll only get worse and the damage will be more permanent. Any thoughts? Thanks!

Ryan
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Old 02-18-2008, 07:02 PM   #5
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Paint to Fix Moisture Problems on Ceiling


In that case, the best plan is:
1) Kill mold/mildew
It must be dead, dead, dead
Use X-14, a Zinsser's Perma-wash mixture, or 1 part bleach to 2 parts water mixture

2) Scrape and sand
Scrape off any loosely adhering material
Feather sand any rough spots or spots where the paint stayed on
Wipe clean of any sanding dust

2a) Mildecide again if needed (more m/m exposed)

4) Prime with Zinsser's 1-2-3 (latex), Benjamin Moore's Fresh Start (latex), or Sherwin Williams Prep Rite (again use the latex)
Do not use Original Kilz (oil-based) and do not use any of the latex Kilz products

4a) At this point, if you need to repair or smooth any areas with joint compound, do so and sand to smooth, clean dust off, then prime repair areas (or the whole thing if that's easier)

5) Paint with a self priming bath paint, such as Zinsser's Perma-White, or the BM/SW K&B (Kitchen and Bath) paints...two coats

That should do it
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Old 02-18-2008, 09:48 PM   #6
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Paint to Fix Moisture Problems on Ceiling


Sliskshift, is Zinsser's Bulls Eye shellac-based primer an acceptable primer/sealer over dead mold and mildew?
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Old 02-18-2008, 10:30 PM   #7
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Paint to Fix Moisture Problems on Ceiling


Slickshift, thanks a ton. I'll give that a try.
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Old 02-18-2008, 11:17 PM   #8
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Paint to Fix Moisture Problems on Ceiling


You really need to get the landlord to install a fart fan in that bathroom or all your efforts will be for nothing in no time.
Do you have a window in your bathroom? If so, scratch then fart fan and open the window.
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Old 02-19-2008, 05:22 AM   #9
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Paint to Fix Moisture Problems on Ceiling


Quote:
Originally Posted by End Grain View Post
Sliskshift, is Zinsser's Bulls Eye shellac-based primer an acceptable primer/sealer over dead mold and mildew?
Zinsser's shellac is a great way to seal over any/all excessive mold and mildew stains left (after killing it of course)
In this case, the high moisture bathroom, I would try and avoid it if possible
The latex will breath a little better
However, if the moisture were seeping through and there was mold/mildew on the "backside" (attic side) of the ceiling, then an oil or shellac based sealer would be a good idea
Also, if the m/m stains were excessive, as they would bleed through latex primers
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Old 02-19-2008, 09:07 AM   #10
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Paint to Fix Moisture Problems on Ceiling


Quote:
Originally Posted by slickshift View Post
Zinsser's shellac is a great way to seal over any/all excessive mold and mildew stains left (after killing it of course)
In this case, the high moisture bathroom, I would try and avoid it if possible
The latex will breath a little better
However, if the moisture were seeping through and there was mold/mildew on the "backside" (attic side) of the ceiling, then an oil or shellac based sealer would be a good idea
Also, if the m/m stains were excessive, as they would bleed through latex primers
Thanks, Slickshift. I didn't think about the breathability aspect of latex.
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Old 02-24-2008, 04:15 PM   #11
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Paint to Fix Moisture Problems on Ceiling


you can fix the mold you just cant stop it from coming back unless you get some ventalation in your bathroom, however the mold good old fashion bleach will clean away the mold and kill the spores it you don't get the spores you have not cleaned poroply. the other product mentioned above are good bleach does the same job for less. after cleaning spray area with water and scrape let dry and prim after primimg there is a chemical sold in a small bottle called meldex it's a mildew inhib that you mix in your paint but until you have good ventelation the problem will reacure.

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