An exterior porch with closed over head roof. Whatever caused it to loose bond will likely happen again unless you find out what is causing it and fix. Most likely it is under vented allowing moisture buildup to push out on the paint. There should be bottom and top roof vents, or add more if there already, this assuming no leaks. Whatever bad paint you left on will likely peel , removing everything loose or even all the paint since it is suspect. A typical job would be T&G plank as it allows some air to pass. You may always have problems with drywall but getting off old paint will help.
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19 years ago