is osb plywood waterproof

Best way to weatherproof OSB - Home Improvement StackNov 15, 2015 - There's no such thing. OSB will swell, warp, and degrade unless it's kept safe from sunlight and perfectly dry. No paint will do this. If you want to use OSB to Choosing Between Oriented Strandboard and PlywoodDelaminations were routine until waterproof synthetic resins were developed  And wood scientists agree that the structural performance of osb and plywood 
Which is better suited for outdoor exposure, OSB board orOriented strand board (OSB) is far superior to particle board for exterior use.  This product, LP SmartSide is true oriented strand board, with the strands bonded with a waterproof resin, the  What is the best plywood for outdoor projects?Plywood vs. OSB: Which is Better? – Parr LumberOct 3, 2013 - My personal opinion is that OSB performs well on the wall and floor but stick to CDX Plywood on the roof. Far too often I see OSB “sag” between Plywood and OSB - Ask the BuilderAug 28, 2003 - Plywood and oriented strand board (OSB) are similar, yet different.  This labeling is your guarantee that waterproof resins and glues were How to Waterproof Your OSB |Apr 30, 2010 - OSB is said to be more water resistant than plywood by some and not so by others. However, more waterproofing is always a good idea for materials that you're planning to use on outdoor projects. After following these steps, you will never risk moisture ruining your work down the roadPlywood vs. OSB (Oriented Strand Board) - WICR WaterproofingMar 30, 2017 - by Chris Swanson Plywood vs. OSB (Oriented Strand Board) As an estimator on projects