Installing Foam Board Insulation Ceiling

Foam blocks airflow needs no vapor barrier and has a higher r value per inch than loose fill.

Installing foam board insulation ceiling.

How to install astroboard polystyrene foam board insulation. Align the front of the board with the face of the rafter or joist. A brief snippet of how and why i used rigid foam insulation for some areas of the tiny house. In most cases however insulation will not help prevent moisture.

R 13 1 polyiso rigid foam insulation board 613010 the home depot after installing and taping the r max board i managed to find blow in insulation the nice white cellulose type for 3 00 55 gallon bag. It comes in standard size 4 8 sheets and smaller sizes in many different thicknesses from 1 4 inch to 2 inches. Spray foam is a very expensive option however. Foam board insulation is easy to use and is a great diy way to add some insulation.

Got it at the home depot here s a link rmax thermasheath 3 2 in. Press the cut insulation board to fit between the rafters or joists. The brand i used was r max thermasheath. How to install astroboard polystyrene foam board insulation.

Foil faced iso board can be cost effective insulation for finished attics and cathedral ceilings. I m using 2 foam board 2 foil faced polyiso r value is approximately r14 fastened to the bottom of the 2 6 truss chord which leaves a nice 2 1 2 air space. Some types of thicker foam board insulation are available but they may need to be special ordered. There s two ways you can go about with foam board insulation.

Hire a pro to install spray foam insulation. Always cover the tops of the ceiling joists to make sure the insulation is deep enough to reach your target r value and to prevent thermal bridging the heat loss that occurs through the wood framing. Secondly and this is the best way you can install a drywall to frame the wall before applying foam board insulation. Firstly you can apply it directly onto the house s concrete walls with the help of a construction adhesive that will hold it in place.

Foam board insulation would be a more economical especially if you are supplying the labor see photo.