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Discussion Starter · #1 ·
I would like to install 3" Crown Molding in our bath. I will be installing a larger than needed exhaust fan.
Even with the fan, this location tends to be a high moisture area at times.
What type of material should the molding be or not be made of ?
I will use a good sealer/paint and use mildew resistant caulk.

Thanks for any advise.
 

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I would avoid MDF trim. MDF swells with moisture. PVC or similar plastic would probably be the best choice. Think that foam would hold moisture and tend to promote mold growth. I have poplar trim on my bathroom, but primed and 2 coats of paint on the back side as well as the front. Been a little over 7 years since I put it up and no issues so far. Do have high CFM fan and we are religious about running the fan at least 15 minutes after done showering. Get a timer for the fan if you don't have one already.
 
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