Ever use quality interior plywood, say baltic birch, for an external (meaning: full exposure to the elements) application and make it work? That's what this thread is about.
I'm tasked with building a "tiny library". I can save a lot of time simply sizing a sheet of quality plywood rather than edge-bonding cedar or PT boards. So I'm exploring this possibility.
Delamination is my concern... caused mostly from water penetration along the sheet edges. I figure some TB3-glued solid PT edge strips will fix the most egregious point of water infiltration, while the flats will get coats of poly prior to paint, cladding, or whatever. I know purpose-designed water-resistant exterior-grade ply exists. But that stuff is hurty-expensive, or in the case of PT seems of mediocre quality.
Thoughts? Suggestions?
I'm tasked with building a "tiny library". I can save a lot of time simply sizing a sheet of quality plywood rather than edge-bonding cedar or PT boards. So I'm exploring this possibility.
Delamination is my concern... caused mostly from water penetration along the sheet edges. I figure some TB3-glued solid PT edge strips will fix the most egregious point of water infiltration, while the flats will get coats of poly prior to paint, cladding, or whatever. I know purpose-designed water-resistant exterior-grade ply exists. But that stuff is hurty-expensive, or in the case of PT seems of mediocre quality.
Thoughts? Suggestions?
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