Dow Extruded Polystyrene Board Insulation R Value

This product typically has an r value of 3 6 to 4 0 per inch of thickness.

Dow extruded polystyrene board insulation r value.

2 vertical compressive strength is measured at 10 percent deformation or at yield whichever occurs first. Dow styrofoam insulation blue board is a nonstructural rigid board insulation manufactured of extruded polystyrene foam xps. Blue board can be used both on exterior and interior walls to give you a continuous insulation barrier that can increase effective r value of the wall by up to 20. R values are expressed in ft h f btu.

R value determined by astm c518. Owens corning foamular 250 extruded polystyrene xps rigid foam insulation is a closed cell highly moisture resistant rigid foam board well suited to meet the needs for a wide variety of residential and commercial construction applications. Choose this option for areas that need a good amount of strength and water resistance. 0 55 in x 4 ft x 8 ft residential sheathing square edge 1 faced polystyrene garage door foam board insulation with sound barrier item 15348 model 201549.

0 55 in x 4 ft x 8 ft. 2 vertical compressive strength is measured at 10 percent deformation or at yield whichever occurs first. It s high r value year after year even after prolonged exposure to moisture and freeze thaw cycling. The higher the r value the greater the insulating power.

Key features excellent long term stable insulating performance at r 51 per inch exceptional moisture resistance long term durability limited lifetime warranty2 maintains 90 of r value and covers all astm c578 properties. It provides about r 5 per inch. Products with foil facing help the panels resist moisture vapor. Ask your seller for the fact sheet on r value.

Expanded polystyrene insulation is similar to the foam used for packing peanuts and it s typically used for insulated concrete forms also knows as icf s. Since styrofoam brand extruded polystyrene foam insulations are visco elastic materials adequate. Expanded polystyrene foam eps is the cheapest and least used foam board product on the market. Styrofoam brand scoreboard is an r 10 insulation board.

Since styrofoam brand extruded polystyrene foam insulations are visco elastic materials adequate design safety factors should be used to prevent long term. Working with home insulation boards. Styrofoam brand scoreboard insulation meets astm c578 type iv standard specification for rigid cellular polystyrene thermal insulation with an r 5 value per inch the 2 in. This material offers the highest r values about r 6 to 6 5.