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carl_schnurr

05:18AM | 03/22/03
Member Since: 03/21/03
1 lifetime posts
Bvbrush
I live in Southern Ontario Canada in a home built in the late 1960's. We have lived in it three years.

When we moved in there were many rooms with paint peeling to varying degrees.

We have since repainted (scraped, sanded, primed etc )many of the rooms and this seemed to get rid of the problem (so far). With the exception of our upstairs bathroom which is peeling again after only 6 months.

Before repainting our the upstairs bathroom, I installed an exhaust fan.

Above the bathroom is attic space which could use some additional insulation.

My walls are made of what appears to be 1/2" thick drywall panels place horizontally on the studs and covered with a ~1/8" of hard, smooth, white plaster that looks like polyfilla. I'm not familiar with this type of construction.

My fear is simply repaint the bathroom ceiling, I'm likely to get the same results.

Could my insulation or wall construction have anything to do with my problem, and what should I do differently this time around.

MrPaint

07:20AM | 03/22/03
Member Since: 02/03/03
196 lifetime posts
Hey Carl........you likely have a moisture issue there. Moisture is the most common reason for paint to peel.

You likely need to add some more insulation to start - you are likely getting condensation on the ceiling - warm moist air - cold ceiling.

Secondly - I would apply a vapour barrier primer - Glidden has one that at one time was called Insul-Aid. Now it is called Ultra-Hide Vapor Barrier Latex Primer. It's product # in the U.S. is 1060-1200. I don't know if it is available in Canada anymore. You might want to check with a Glidden store.

Once you have done that - apply two coats of a good latex semi-gloss. Glidden Ultra is a good one - product # 9480-0.

So, insulate - apply some vapor barrier primer - 2 coats of your s/g topcoat - use your fan (let it run for 15 minutes after your shower - and make sure it vents well to the outside)......and you are good to go!

Mr. Paint

5slb6

12:11AM | 03/24/03
Member Since: 07/28/02
1358 lifetime posts
Another good vapor barrier product is BIN from Zinnser. Also after you paint the bathroom wait a couple of days before using it for taking showers so that the paint will cure without alot of moisture getting on it.
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