any wood in an improperly vented coop will succumb to rot. My coops are well vented, and with duly needed owner help in keeping droppings etc cleaned up will last a very long time. The osb board is not "particle board" but laminated strand board with water resistant glue. My coops have been in service for years. But thanks for your comment.I didn't happen to see this model on the website of sunnysidecoops. Is it made of pressed OSB particle board inside? I'm not a fan of particle board products because moisture tends to start disintegrating OSB sooner than solid wood. Chickens poop a lot of wet "stuff" so particle interiors are not resilient to moisture.
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