Dow Rigid Foam Insulation 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.
Dow rigid foam insulation r value. Choose this option for areas that need a good amount of strength and water resistance. It is lightweight and easy to use and provides an optimum balance between performance and cost. The higher the r value the greater the insulating power. Dow scoreboard is scored over 16 and 24 making it.
1r values are consistent with criteria of astm c578 and requirements of ftc r value rule 16 cfr part 460. 1 when joints penetrations detailed appropriately. See also material data sheet msds 1511 or msds 1911. Some products have reinforced facing to make them sturdier.
2 r means resistance to heat flow. 2 stated thermal resistance values are based upon conditioning requirements and test methodology found in astm c1289 and astm c518 for foil faced polyisocyanurate insulation. R values vary depending on many factors including the mean temperature at which the test is conducted and the age of the sample at the time of testing. It provides r values that range from 3 6 to 4 2 per inch.
Thermosetting resins from dow can be used as an alternative to traditional formaldehyde based resins for binding mineral fibers in the production of insulation blanket products that go into building insulation systems and specialty insulation. It is offered in multiple thicknesses and dimensions in both square edged and tongue and groove joints. 2 in x 4 ft x 8 ft. 4based on 1 25 mm thickness.
The information on this page is based on data considered to be true and accurate based on periodic internal. Because rigid foam plastic insulation products are not all aged in accordance with the same standards it is useful to publish comparison r value data. Since its discovery in 1941 styrofoam brand xps insulation has a long and rich heritage as a sustainable building product insulating to meeting core thermal moisture air and vapor performance requirements through its rigid foam board technology. This product typically has an r value of 3 6 to 4 0 per inch of thickness.
It provides about r 5 per inch. Dow styrofoam scoreboard insulation board blue board 4 ft by 8 ft sheet 2 0 thick r value 10 0 a nonstructural rigid board insulation manufactured of extruded polystyrene foam xps.