Dow Foam Board Insulation R Value

R value determined by astm c518.

Dow foam board insulation r value.

The r value at 180 day real time age and 75ºf mean temperature is commonly used to compare products and is the value printed on the product. Shop dow r 10 common. 4based on 1 25 mm thickness. Dow styrofoam insulation blue board dow styrofoam insulation blue board is a nonstructural rigid board insulation manufactured of extruded polystyrene foam xps.

Products with a higher r value have a higher cost but have an increased capacity to resist heat flow and therefore provide greater insulation. Values at yield or 10 deflection whichever occurs first. 2 in x 4 ft x 8 ft. Since styrofoam brand extruded polystyrene foam insulations are visco elastic materials adequate design safety factors should be used to prevent long term creep and fatigue deformation.

2 r means resistance to heat flow. 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. 1r values are consistent with criteria of astm c578 and requirements of ftc r value rule 16 cfr part 460. Data ranges from 0 00 to value shown due to the level of precision of the test method.

This product typically has an r value of 3 6 to 4 0 per inch of thickness. Each type comes with unique advantages. 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. For insulated panels and boards we offer polyurethane systems that are lightweight increase energy efficiency improve longevity and meet the most demanding industry requirements.

Expanded polystyrene foam eps is the cheapest and least used foam board product on the market. The higher the r value the greater the insulating power. Choose from three types of insulating foam core boards for wall insulation.