Dow Polystyrene Insulation Board R Value

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

Dow polystyrene insulation board r value.

The higher the r value the greater the insulating power. 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 design safety factors should be used to prevent long term. 2 vertical compressive strength is measured at 10 percent deformation or at yield whichever occurs first.

Ask your seller for the fact sheet on r value. 2 in x 4 ft x 8 ft. Styrofoam extruded polystyrene insulation is rated at an r value of 5 0 per inch at 75 f. R values are expressed in ft h f btu.

Dow invented a process for extruding polystyrene to achieve a closed cell foam that resists moisture. Since styrofoam brand extruded polystyrene foam insulations are visco elastic materials adequate. Dow scoreboard is scored over 16 and 24 making it. R value determined by astm c518.

Shop dow r 10 common. 2 vertical compressive strength is measured at 10 percent deformation or yield whichever occurs first. R means resistance to heat flow.