How to repair moisture damaged painted window


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Old 05-27-24, 04:14 PM
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How to repair moisture damaged painted window

I have a picture window that has moisture damage on the interior corners. I have scraped the paint off and repainted it a couple times over the years but this time the wood seems very soft so I'm looking for a more permanent fix.

I'm wondering if it would be best to cut out the bad pieces of wood with and oscillating tool and then glue in new wood pieces. Or are there other options like using plati-wood over the damaged parts?

 
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Old 05-27-24, 04:16 PM
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Old 05-27-24, 04:39 PM
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Strip the paint off... apply minwax wood hardener... prime and paint.

And then lower your humidity in the winter so it's closer to 25%. The condensation is your biggest problem so you need to lower humidity before your windows are rotten.
 
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Old 05-29-24, 06:45 AM
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Thanks! I didn't know there was such a product.
 
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Old 06-30-24, 02:38 PM
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After removing the paint, the corner pieces of wood are pretty rotten unfortunately. Seems to be about 3" of the bottom and 3" of side trim pieces and maybe some of the bottom piece too. What's the best way to fix this?
 
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Old 07-01-24, 02:23 AM
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I'd remove and replace the rotten wood. That will also give you a chance to inspect the framing behind it.
 
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Old 07-01-24, 03:56 AM
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I've had excellent results with Abatron Liquid Wood and WoodEpox. You could use the Liquid to harden and waterproof the wood, then use WoodEpox to build it back up. Be sure to sand it smooth before it completely hardens.
I also recommend you seal the outside of the window. Consider using an oil based sealant because it will stand up to the elements better than water based latex.
 
 

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