treating pressure treated deck joists?


Old 05-24-18, 12:14 PM
tevil's Avatar
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treating pressure treated deck joists?

I rebuilt my deck a couple years ago and the joists underneath seem to have a bit of mildew building up. I planned on breaking out the pressure washer with some simple green (or something of the sort more natural and mild than bleach) to give it all a good zap but was curious if I should also hit the wood with some kind of sealer treatment. Im sure the chemical has dried out by now but Im unsure of what, if anything, to use on presser treated wood.

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Old 05-24-18, 12:40 PM
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They make an algecide that can be sprayed onto the wood which will keep the mold from returning.
Old 05-24-18, 01:06 PM
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Try Coppercoat. Home depot has it.
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