Step 16: Cut Penetrations

The sleeve for a penetration should be constructed to the size required and no larger. Typically PVC pipe is used and placed through the ICF wall. The pipe should extend past the ICF several inches until the final wall is poured. Use spray foam adhesive around the sleeve on both sides to seal the sleeve in place and prevent any concrete leakage.

If multiple penetrations are close to each other, be sure to brace and strap as necessary and use proper vibration techniques to ensure that there is proper concrete consolidation around all penetrations. When cutting penetrations, ensure that no debris falls into the wall cavity. If it does, remove it prior to pouring the walls.