Seal older PT or leave it along?
New house has a lot of PT decking, the wrap around porch is covered and a there's a grade level section that's totally exposed. I believe it's about 10 years old.
The majority of the wood is in very good shape with a few areas that take the most water checking bad and will need to get replaced within a few years.
Is it worth spending the time to seal this stuff or should I just replace the worse wood as needed until it's time to redo the entire thing?
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