HughF Posted September 19, 2023 Share Posted September 19, 2023 (edited) I know there is a real benefit to insulating below DPC, and for various reasons, we haven't done so on our extension. Is this something that I can get done as a retrofit, using blown in EPS beads? Assume that holes will need to be drilled below DPC in the blockwork that comes off the founds. Cavity is 150mm full fill rockwool, with I think one course of air below the rockwool before you hit the cavity concrete fill. Edited September 19, 2023 by HughF Link to comment Share on other sites More sharing options...
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