I replaced the front stairs, using pressure treated wood. How long do
I have to wait before painting? I figure I should let it dry out over
the summer and paint in the fall.
I read that there's pressure treated lumber sealant for wood which
will be in human contact but there shouldn't be any of that. Will the
wood be OK outside if unsealed?
How about plastic stair treads? Should I wait for the wood to dry or
can I put those on now? They only cover part of the top of the tread
and make the stairs much safer.
FWIW, I built a set of basement stairs some years ago and painted with
a polyurethane porch and floor paint just after installation. The
treated wood was the dry type, good quality species, but not southern
yellow pine. A decade later, good as new. The environment was an old
house basement where the original steps had rotted away. Later a
project came up needing treated wood and a wet treated (and shipped)
fast growing Nebraska jack pine was the source. No finish or adhesive
of any type worked on that, although the nails did hold fairly well.
Bottom line, you have a critical application and with the many grades
of treated wood out there, you may be lucky or maybe not.
Experimenting with leftover scraps would be well advised to get at
least a hint of how later painting might perform. Pro paint stores
and customer service at the wood suppliers headquarters might be
helpful. Then there's the world renowned USDA facility at U of
Wisconsin/Madison with thousands of publications on timber related
topics. Good luck.
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