Moisture content of plaster walls ?

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Old 04-01-13, 06:24 AM
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Moisture content of plaster walls ?

House in question was constructed in 1920's . Bathroom with tub / shower has plaster walls and was never vented until 3 years ago. Paint applied to walls continues to scale off. Is this the result of accumulated moisture build-up in the plaster ? Is there a way to remedy this problem so walls can be re-painted ? Thank You
 
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Old 04-01-13, 11:40 AM
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As long as the plaster has been painted and there were no water leaks from behind, a more likely cause is improperly primed oil base enamel when the paint was switched from oil base to latex. Unfortunately there isn't an easy fix. You'll need to scrape what you can and prime with an oil base primer. You can then switch to latex enamel.
 
 

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