Using Styrofoam Insulation Between Studs

There is nothing wrong with the addition of foamboard between the studs in that it is better than nothing.

Using styrofoam insulation between studs.

You can build a double stud wall or you can install a continuous layer of rigid insulation on one side of the wall. The studs conduct more heat than the insulation between them. Here at gba readers regularly ask about the best way to install rigid foam insulation between studs or rafters. Closed cell expanded foam insulation cellulose batts etc.

Insulating boards are just one of the many types of foam insulation. The question of validity arises with the excessive amount of labor involved producing a tight shell by this method. Plywood has an r value of 1 25 and fiberglass batts have an r value of 3 14. A typical question might go like this.

Most builders who install a continuous layer of rigid insulation use rigid foam polyisocyanurate expanded polystyrene or extruded polystyrene. Consider using spray foam insulation as well to seal smaller cracks and gaps. It s nothing more than framing with 2x6s or deeper studs and using any option of insulation product i e. This eliminates thermal bridging which is the energy lost through wall studs.

My question really is about the wisdom of using rigid foam board between studs. The panels provide a continuous energy efficient surface. Styrofoam is a brand name for a polystyrene foam board. This makes it much easier to mount your sheetrock.

Using the insulation within your wall cavity and other updated construction industry standards will allow you to use most any exterior finishing products fiber cement siding. Rather than using long drywall screws i ripped down 3 4 plywood into furring strips and screwed them through the foam board into the studs with 3 screws make sure you mark your stud locations and an impact drill is your friend here. 3 benefits of rigid foam sheathing. More effective insulation with r values ranging from 3 6 to 8 0 rigid foam sheathing has much better insulation per inch than other materials i e.

I plan to cut the rigid foam pieces a little bit loose and seal the edges of the polyiso with canned spray foam. There are two main ways of reducing thermal bridging through studs. Polystyrene boards whether pink blue white or another color are usually used in construction but it has other applications as well. Using styrofoam insulation for soundproofing.

Acoustically it can reduce and muffle or help block noise from entering or leaving a room.