What is the best way to insulate an exterior wall with a shower on the inside & another shower on the outside?
What is the best way to insulate an exterior wall with a walk-in shower on the inside and an outdoor shower against it on the outside?
We are in the process of repairing our Hurricane Sandy damaged home on the New Jersey shore. We took the 1st floor down to the studs and are putting it back together now. In the bathroom, we removed the tub and tile surround, to replace with a walk in shower, and discovered that the exterior wall was totally rotten. We replaced the exterior plywood, studs, vinyl window and re-sided with tar paper and fiber cement siding. The outdoor shower is also located against this wall. (We can’t really move the outside shower because the concrete in this area was poured with a good pitch that drains the water away nicely). The interior side of wall (including the window) is the 5′ wall of the shower. On the inside wall, I was planning to install Hardie Board and 12″ tiles. I’m really confused about what I should do, insulation/moisture barrier wise, between these two walls. With showers on both sides, the potential for a wet wall seems high. Any thoughts would be greatly appreciated! Thanks much, LaurenD
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