Is the OSB 3 Board Waterproof? When selecting construction materials, OSB 3 (Oriented Strand Board 3) is often a top choice for many builders. It’s known for its moisture resistance, but many people still wonder: is OSB 3 board waterproof? In this article, we will explore what makes OSB 3 unique, its water resistance properties, … Continue reading Is the OSB 3 Board Waterproof?