A Simple Way To Cut Rigid Foam Insulation
Teamed up with a straightedge, a sharpened putty knife cuts through foam like butter.
When Chris Ellis of Brewster, Mass., was looking for the right tool to cut rigid-foam insulation, he tried a utility knife, a kitchen knife, and a saw. None of those options worked especially well. So Chris created something that works beautifully. As Chuck Miller demonstrates in this gem from the Fine Homebuilding Video Vault, a 3-in. or 4-in. putty knife with a sharpened blade cuts through the foam like butter.
For more information on working with rigid insulation, try these links: