Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Painting

CLICK HERE AND JOIN OUR COMMUNITY TODAY...IT'S FREE!

Reply
 
Thread Tools Search this Thread Display Modes
Old 04-14-2012, 01:39 PM   #1
New Old Home Owner
 
RHulsmeyer's Avatar
 
Join Date: Mar 2012
Location: Sag Harbor, NY Suffolk Co
Posts: 17
Rewards Points: 0
Share |
Default

spots on bathroom ceiling


Hi all!
I've got some reoccurring brown spots on my bathroom ceiling I canít seem to make go away. (see photos) They appear to be caused from condensation from the shower leaching some sort of material out of the paint. It looks like they are ready to almost drip, but they just get a bit gummy and hang there. They wash of easily leaving a faint stain, but then come back again in a few days of showering. The paint is relatively new (within the last 6 months) and Iím pretty sure is a semi-gloss or eggshell latex. What is actually happening here? Will these spots stop appearing over time as the paint cures? Any solution to fix this? What prep/prime/paint treatment is recommended to avoid this?
Thanks!

Rob
Attached Thumbnails
spots on bathroom ceiling-ceiling01.jpg   spots on bathroom ceiling-ceiling02.jpg  

RHulsmeyer is offline   Reply With Quote
Old 04-14-2012, 01:47 PM   #2
Member
 
Join Date: Mar 2012
Posts: 98
Rewards Points: 0
Default

spots on bathroom ceiling


mine does that too. I think it is paint pigment reacting with humidity. I run the fan 15 mins after a shower and wipe them when someone forgets.

dwcopple is offline   Reply With Quote
Old 04-14-2012, 01:50 PM   #3
the Musigician
 
DangerMouse's Avatar
 
Join Date: Jul 2008
Location: I'm right here!
Posts: 10,404
Rewards Points: 0
Default

spots on bathroom ceiling


Is the area around the spots cleaner after you wash them?

Are there smokers in the home?

Nicotine stains will do what you describe.

DM
__________________
[SIGPIC][/SIGPIC]Click here to see some of my original magic tricks and trick boxes!
DangerMouse is offline   Reply With Quote
Old 04-14-2012, 02:08 PM   #4
Member
 
Gymschu's Avatar
 
Join Date: Dec 2010
Location: Eastern Ohio (heart of Appalachia)
Posts: 2,833
Rewards Points: 18
Default

spots on bathroom ceiling


Could be any number of things. The moisture could indeed be reactivating stains on the ceiling. They may have not been properly sealed and therefore are prone to wicking through the paint film. It's also possible that there is condensation going on ABOVE the ceiling and water is dripping through old 2x4's, insulation, and lathe leaving those tell-tale signs. You could try to seal those spots up with a really good stain blocker like Cover Stain from Zinsser and repaint. I had a recent ceiling that had a piece of metal angle iron above it. In the winter, it would begin to condensate and drip ugly brown water into the kitchen. I had to insulate it with spray foam to stop the condensation and eliminate the problem.
Gymschu is offline   Reply With Quote
The Following User Says Thank You to Gymschu For This Useful Post:
DangerMouse (04-14-2012)
Old 04-14-2012, 02:13 PM   #5
the Musigician
 
DangerMouse's Avatar
 
Join Date: Jul 2008
Location: I'm right here!
Posts: 10,404
Rewards Points: 0
Default

spots on bathroom ceiling


Good point Gymschu. Are the spots in the same places every time? Randomly around the ceiling?
In a row? I thought it could be the drywall screws, but the spots seem too varied. Hard to tell from the photos.

DM
__________________
[SIGPIC][/SIGPIC]Click here to see some of my original magic tricks and trick boxes!
DangerMouse is offline   Reply With Quote
Old 04-14-2012, 02:15 PM   #6
the Musigician
 
DangerMouse's Avatar
 
Join Date: Jul 2008
Location: I'm right here!
Posts: 10,404
Rewards Points: 0
Default

spots on bathroom ceiling


Smell the sticky stuff next time, it'll still smell like tobacco if it is nicotine staining. If it was nicotine stained and not cleaned and sealed properly before being painted, it'll continue doing this until the problem is resolved.

DM
__________________
[SIGPIC][/SIGPIC]Click here to see some of my original magic tricks and trick boxes!
DangerMouse is offline   Reply With Quote
Old 04-14-2012, 03:15 PM   #7
New Old Home Owner
 
RHulsmeyer's Avatar
 
Join Date: Mar 2012
Location: Sag Harbor, NY Suffolk Co
Posts: 17
Rewards Points: 0
Default

spots on bathroom ceiling


All good thoughts, but no smokers living in the house for the past several years so not nicotine. No leaking from above.
Spots donít correspond to screw placement.
Some are in the same place, some are new, some donít reappear.
I have to conclude that the painter used cheap paint and it is some reaction with the humidity/dampness.
Iíll keep you posted and update here if I find a solution.

RH
RHulsmeyer is offline   Reply With Quote
The Following User Says Thank You to RHulsmeyer For This Useful Post:
DangerMouse (04-14-2012)
Old 04-14-2012, 10:12 PM   #8
Member
 
Join Date: Jan 2011
Location: Cape May, NJ
Posts: 2,392
Rewards Points: 0
Default

spots on bathroom ceiling


Those are surfactants leaching out of the paint. Maybe Ric will come by and give us the chemistry of it. It will never stop. I lived with it in my bath for ten years, initially thinking it was nicotine, till I researched it. The only reason I don't see it anymore is that I moved. I can't say for sure, but I remember reading that it could be caused, or aggravated, by showering in a bath exposing the finish to steam too soon after finishing. I tell people to allow a minimum of twenty four hours, if they have only one shower, and as many days as possible if they have another available. The gunk should wipe right off with a wet rag and should not leave any staining, at least that's my experince. You might try applying a clear coat to remove the finish from direct contact with steam.
jsheridan is offline   Reply With Quote
Old 04-14-2012, 10:17 PM   #9
Member
 
Join Date: Nov 2011
Location: Hartfield VA
Posts: 26,426
Rewards Points: 192
Default

spots on bathroom ceiling


Are they plaster ceilings?
joecaption is offline   Reply With Quote
Old 04-15-2012, 07:47 PM   #10
Member
 
Join Date: May 2008
Posts: 86
Rewards Points: 0
Default

spots on bathroom ceiling


I had that problem in my bathroom until I repainted the ceiling with bathroom paint, which is practically impervious to moisture.
MrBill_DIY is offline   Reply With Quote
Old 04-16-2012, 04:52 PM   #11
Member
 
Mr. Paint's Avatar
 
Join Date: Nov 2011
Location: San Carlos, CA
Posts: 341
Rewards Points: 0
Default

spots on bathroom ceiling


Surfactants are a soap-like agent in all latex paints. They enable the oils to mix with water. These normally dry into the film, but when exposed to excessive moisture in the curing period they will migrate to the surface and become problematic. They wash off with clear water when fresh. If you decide to repaint, be sure all staining is cleaned off and use Zinsser Perma-White to paint in your bathroom. It is an excellent product.

BTW: Just because your paint has had a problem doesn't mean you bought bad paint. Surfactants are used by all manufacturers and all are subject to surfactant leaching. Surfactants ar in most universal tints, so adding more colorant can exacerbate the problem.
Mr. Paint is offline   Reply With Quote
Old 05-22-2012, 09:55 PM   #12
New Old Home Owner
 
RHulsmeyer's Avatar
 
Join Date: Mar 2012
Location: Sag Harbor, NY Suffolk Co
Posts: 17
Rewards Points: 0
Default

spots on bathroom ceiling


Thanks for the comments. I think I'm going to have to clean it, sand it, use some sort of sealer and reprint with something specifically formulated for bathrooms. And this was done by a professional!!
RHulsmeyer is offline   Reply With Quote
Old 05-23-2012, 11:07 AM   #13
Member
 
Join Date: Feb 2011
Posts: 334
Rewards Points: 2
Default

spots on bathroom ceiling


If there is not good ventilation, it can cause the humidity to accumulate on the ceiling (as warm air rises). This causes colorant leaching, which can be wiped off, but will reoccur if there is not an effective vent fan to clear out the humidity. Perma White is a good paint for bathrooms, but the ventilation is very important.
Will22 is offline   Reply With Quote
Old 05-23-2012, 02:38 PM   #14
Member
 
Gymschu's Avatar
 
Join Date: Dec 2010
Location: Eastern Ohio (heart of Appalachia)
Posts: 2,833
Rewards Points: 18
Default

spots on bathroom ceiling


Quote:
Originally Posted by RHulsmeyer View Post
Thanks for the comments. I think I'm going to have to clean it, sand it, use some sort of sealer and reprint with something specifically formulated for bathrooms. And this was done by a professional!!
Remember, a professional can't see through 7 or 8 layers of paint film. Those spots may have appeared as moisture from showers, etc. began to accumulate on the ceiling & began to wick the stain through perhaps 3 or 4 layers of paint.
Gymschu is offline   Reply With Quote
Old 05-23-2012, 03:10 PM   #15
New Old Home Owner
 
RHulsmeyer's Avatar
 
Join Date: Mar 2012
Location: Sag Harbor, NY Suffolk Co
Posts: 17
Rewards Points: 0
Default

spots on bathroom ceiling


so do i need to take this down to bare plaster before repainting to get it to stop?

RHulsmeyer is offline   Reply With Quote
Reply

Tags
spots on ceiling


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
crack and stains in ceiling under bathroom diy_dude Building & Construction 0 08-06-2011 05:52 AM
drywall ceiling repair after bathroom fire help nilewaves Drywall & Plaster 9 06-07-2011 03:33 PM
Bubbling paint on ceiling caused by damp bathroom floor garv19 General DIY Discussions 4 04-10-2010 07:38 AM
Bathroom Ceiling chadfran Painting 11 06-19-2009 08:55 PM
finishing a bathroom ceiling mmhendrie Building & Construction 8 03-25-2009 03:01 PM




Top of Page | View New Posts

Copyright © 2003-2014 Escalate Media. All Rights Reserved.