Installing Foam Board Insulation Ceiling

Secondly and this is the best way you can install a drywall to frame the wall before applying foam board insulation.

Installing foam board insulation ceiling.

Foil faced iso board can be cost effective insulation for finished attics and cathedral ceilings. Foam board insulation would be a more economical especially if you are supplying the labor see photo. 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. How to install astroboard polystyrene foam board 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. Foam blocks airflow needs no vapor barrier and has a higher r value per inch than loose fill. Spray foam is a very expensive option however. There s two ways you can go about with foam board insulation.

Leave an air gap between the roof sheathing and the board. Foam board the last option that i considered and the one i m using is foil faced polyiso insulation board. How to install astroboard polystyrene foam board insulation. The brand i used was r max thermasheath.

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. Press the cut insulation board to fit between the rafters or joists. 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. In most cases however insulation will not help prevent moisture.

Align the front of the board with the face of the rafter or joist. The air space will be continuous down to the soffit vents and. Foam board insulation is easy to use and is a great diy way to add some insulation. It comes in standard size 4 8 sheets and smaller sizes in many different thicknesses from 1 4 inch to 2 inches.

A brief snippet of how and why i used rigid foam insulation for some areas of the tiny house.