Is Chipped Styrofoam Good To Insulate My Attic

Place more foam board pieces perpendicular on top of the joists.

Is chipped styrofoam good to insulate my attic. Find a diagram of common air leaks here. The superattic system utilizes proprietary silverglo rigid foam insulation panels to fully seal and insulate the attic directly beneath the roof rafters and directly inside the gable ends. In an attic the eaves are one of the most critical places to get good coverage with the foam. Yes using spray foam we have added your attic to the conditioned space.

Cut foam board to fit in between joists. Nothing unusual about that. Gaps in the attic or between the lower floors and the attic will let heated or cooled air escape to the great unconditioned outdoors making any insulation you add essentially useless. When we seal the attic with spray foam it s as tight as a butter tub.

The superattic system creates a continuous air and insulation barrier directly beneath the attic roof with no thermal bridging to compromise energy. When installing foam insulation boards in the attic make sure you start from one corner and work your way around the room. It comes in standard size 4 8 sheets and smaller sizes in many different thicknesses from 1 4 inch to 2 inches. I think with his method i can achieve 6 8 inches of foam.

Use spray foam to seal the foam between the joists this will both insulate and create my air barrier for this portion of the attic. That styrofoam insulation will work but it is not cheap per r value however it gives you a great r value per inch. Yeah if you do a really good job raking the insulation back you can still do a good job with the foam. But it s harder and the chances of success are lower.

Step 3 place caulking and furring strips. Step 2 install insulation boards. A lot of builders and homeowners are going with spray foam insulation because of the airtightness benefits but then the questioner mentioned that the spray foam contractor had intentionally left big holes to the outside by not sealing the gable vents. Insulating an attic usually means you have a lot of room for insulation and you will need high r value so that is why the cheaper options are more popular blown cellulose or blown fiberglass.

Some types of thicker foam board insulation are available but they may need to be special ordered. Foam board insulation is easy to use and is a great diy way to add some insulation. Remove all blown in insulation 2. If you leave the existing insulation in the attic it interferes with the foam installation.

However in a traditionally insulated attic insulation on the ceiling the attic is vented.