Insulated rim joists with concrete patio close to height of sill plate
Hello, Being a DIYer who noticed several articles about the benefits of sealing rim joists with foam board, I decided to do the same in my house with 2” XPS and great stuff around the cracks. I live in Idaho zone 5a, the house was built in 2006, and additionally has a 1/2” layer of exterior (EPS or XPS) under the siding. There are overhangs with gutters all around the house. The foundation is 6-8″ off the grade in most spots. My main concern is that I have a large concrete patio in my backyard that spans the entire back foundation wall of my house, and is quite high up to the foundation, with a 1.5” gap from patio to siding, and therefore maybe a 2-4” gap between the patio and the sill plate. Do you think this set up will be a severe issue in terms of bulk water entry and drying potential? If so, is there anything I can do to prevent water from getting to the wood behind the siding, like metal flashing? Or should I simply remove the foam board, as there were no problems before I installed the foam?
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