R Value Of 2 Inch Blue Foam Board
2 in x 4 ft x 8 ft.
R value of 2 inch blue foam board. Additional r value for a masonry wall constructed using these materials needs to add the insulating value of additional wall components typically included such as 1 solid foam polyisocyanurate r 8 extruded polystyrene r 5 expanded polystyrene r 4 or 1 of perlite r 2 7 and for an exterior air film winter no wind r 0 17 an interior. Products provide superior insulating properties. Closed cell rigid foam board designed to resist moisture and helps to block mildew. Has a higher r value than wood fiber plywood or 1 2 in.
Pink and blue rigid foam insulation boards are made from polystyrene resin that is melted and then forced through a die to form it into the desired shape. It provides r values that range from 3 6 to 4 2 per inch. As insulators pink and blue boards perform virtually identically with an insulating value of r 5 per inch of thickness. Eps is used under roofing over foundation walls and beneath siding.
It provides about r 5 per inch. Energy star qualified to meet or exceed federal guidelines for energy efficiency for year round energy and money savings. Foamular extruded polystyrene xps rigid foam insulation offers foamular extruded polystyrene xps rigid foam insulation offers a comprehensive line of products choose the strength you need from 15 to 60 psi and exceptional moisture resistance. 2 in x 4 ft x 8 ft 1 faced polystyrene garage door foam board insulation item 15357 model 2x48x96 r tech.
One inch of foam board only provides a minimal insulating value. One inch of foam board isn t sufficient for two reasons. That vapor barrier stops moisture from the foundation concrete from getting into the framed wall assembly. This foam board insulation is the rigid pink or blue panels that can be found at home centers in many different thicknesses.
Some products have reinforced facing to make them sturdier. Styrofoam brand scoreboard is an r 10 insulation board. Styrofoam brand scoreboard has a square edge treatment. It provides an r value of 4 per inch of thickness and is the cheapest type of foam board insulation.
2 in x 4 ft x 8 ft. Shop dow r 10 common. Click here to shop loctite foamboard adhesive. Choose this option for areas that need a good amount of strength and water resistance.
This material offers the highest r values about r 6 to 6 5.