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jimbo22s

XPS under the floor plate

jimbo22s
15 years ago

Two contractors who bid on my job expressed concern that 1" XPS under the floor plate (25ga steel track in this case) would produce an unstable wall. They said that they feel that the floor plate will shift and would not provide a solid foundation for an interior wall.

Does anyone have experience or pictures in addition to the BSC report to demonstrate that this is a sound practice? What size Tapcon should they use?

Thanks in advance.

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