How do I waterproof this wall?

Old 09-05-17, 11:02 AM
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How do I waterproof this wall?

The job site is located in San Diego. It doesn't rain a lot here, but we do have rain now and then. I recently bought a house that I'm remodeling. The sunroom was built on a slab that is below grade and when we opened up the walls to replace windows we found a fair amount of rot and needed to reframe the exterior walls. I'd like to find a solution for waterproofing the lower part of the wall and sealing the seam where the plates (treated 2x4) meet. What are your thoughts? Thanks in advance
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Old 09-05-17, 11:16 AM
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In my mind, beyond keeping the water away with gutters, downspout extensions and grading, the use of materials which can rot (like OSB) should be eliminated at that level.

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