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r7-arr t1_jachv1o wrote

Reply to comment by hoppyending in Add additional insulation to walkout basement wall cavity. Good idea? Bad idea? by hoppyending

The sheetrock or plywood should be between your top plate and extend to the sill plate. The seam between the sill plate and the sheetrock or plywood should be caulked with fire blocking caulk. Once you finish your walls and ceiling, you will have created a massive chimney for any fire unless you put up the blocking.

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