I have two -- a 12x12 T-111, and an 8x8 OSB. Both were painted, and both are
still going strong, after about 8 years. When you paint, pay particular
attention to any exposed edges, those are the weakest link.
Around here, they also offer them in the prefinished plastic-skinned OSB
with the faux woodgrain, supposedly weather-proof as-is. Paintable, but you
don't have to. Same stuff my cheap apartment building is skinned in, in
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