[tesard]

How do I prove that my new construction home stucco exterior surface was incorrectly painted? I have white effloescence showing in multiple places all over my home. It was painted approximately 1 year ago and it showed up about 3 months ago. Looking for any help.

[ballengerb1]

If it is truly efflorescence it is likely the stucco and not the paint at fault. Do you know what type or brand paint was used?

[StevieBoyWonder]

efflorescence indicates moisture migrating outward through the stucco, for instance if the house was painted before the stucco became fully cured. Otherwise, there may be a moisture migration issue separate from the painting issue. Definietely check which paint was applied to ensure it is compatible with the stucco, needs to be applied over a sealer/ primer coat, and how soon after stucco cure it may be used. See Mr. Fowler's article at http://www.stuccoguru.com/resources/article.cfm?articleID=C-02500&resourceID=2 for a summary, or check wikipedia's efflorescence article.