06:13PM | 03/24/06
Member Since: 03/23/06
1 lifetime posts
I am remodeling my bathroom and it has a large window in the shower stall. I have framed it out with 1x3 pine. I treated it with thompsons water seal. I have also put polyurethane on th eexposed wood. Is there anything else I can do to protect the wood. Any thoughts at all will help.


08:18PM | 03/25/06
Member Since: 12/27/02
543 lifetime posts
In my humble experience over the past 30 years any wood window in a shower is destined to fail no matter what the sealant. Wood has a tendency to shrink & expand at a different rate than the surround, and inevitably there will be water penetration.

You may seal the window sash itself but the extensive moisture in that situation will get past anything you do eventually, water is a powerful opponent. Take the surface of the wood itself for example. With clear finishes water will find it's way into the soft cells of the wood through expansion & contraction and if it doesn't have success there it'll seep into the back through the jamb in a constantly moisture ridden environment.

I use waterproof trims like azek, windows in that situation only with factory applied baked on finishes or other waterproof materials such as vinyls or glass/plastic block.

Now painted finishes are different again, those you can seal with an oil base primer and finishe with a good acrylic, and be able to see the failure, but I'm only a carpenter so, with...

That said... remove the pine, replace it with a hardwood like maple and seal that, but get good advice from a pro painter... I think an exterior sealant & maybe a urethane finish but then that too takes upkeep, I'm only know materials being a carpenter, if you have to have the wood finish on the sashes in there it going to take constant care.

Alter Eagle Construction & Design | Construction & Design | | Decks, California outdoor living | | Molding and finishing | | Crown tutorial

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