How do you cut polyisocyanurate rigid foam insulation?

How do you cut polyisocyanurate rigid foam insulation?

If you need to cut sheets of how the polyisocyanurate insulation, you should use a utility knife rather than a drywall saw or other type of cutter. When cutting the material, use a straight edge and cut on the side of the foam board that has the foil surface attached (if applicable).

What is the best tool to cut foam board?

Take scissors, a simple blade, cookie cutters, or even dental floss and cut through your foam. To make larger cuts, use electric tools. Secure the foam and use an electric knife, hot wire cutter, or foam saw to cut through thick or firm foam.

Can you put rigid foam insulation between studs?

Installing Foam Board Insulation Between Studs. Rigid foam board insulation can be used throughout the home, but most often it is found in basement walls. … Any insulation is usually better than no insulation, as long as that insulation does not create more problems for you later on.

Which side of rigid foam insulation faces out?

The bottom line is that the styrofoam is going up with the foil facing the inside of the house and with the insulation slightly back so it creates a space between the foil covering and the inside of the sheetrock.