What can I do to address a condensation and mildew issue on a cathedral ceiling?
Our house is 35 years old and has a cathedral ceiling in the living area located in the center of the house. We have never had an issue with the ceiling until about 5 years ago. Condensation develops during the summer months on the ceiling and ultimately results in mildew that spreads across the entire ceiling. We live in LA and the heat in the summer is in the 90s during those months. Approximately 8 years ago we replaced the roof on the house, using the architectural shingles and removing the power vents and replacing them with a ridge vent system. That is only difference that I am aware of that may have contributed to this problem. Five years ago we redid the ceiling and the painter treated the mildew and used a special paint that was mildew resistant. For the last 3 years we have been o.k. But this year the problem has developed again. Before I redo the ceiling, I want to solve the problem that is causing it. Can you help?
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