Dow Styrofoam Insulation R Value

Corrosion problems when in contact with steel roofing moisture.

Dow styrofoam insulation r value. There are three basic foam insulation board products on the. 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. Because of this i often get questions about which type of foam board insulation to use and what r values these products provide. Dow styrofoam insulation blue board dow styrofoam insulation blue board is a nonstructural rigid board insulation manufactured of extruded polystyrene foam xps.

R value determined by astm c518. I ve written several posts about how to insulation basement walls in which i promote the use of foam board insulation as the first line of defense against moisture and mold. Especially with the tip extensions and getting in those tight spots. 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.

1 875 in x 3 937 ft x 7 785 ft 1 faced polystyrene foam board insulation item 96554 model 673349 styrofoam insulation products offer high moisture resistance. 2 in x 4 ft x 8 ft. 8 3 4 4 8 2 20. Since styrofoam brand extruded polystyrene foam insulations are visco elastic materials adequate design safety factors should be used to prevent long term.

Foam board insulation types. Styrofoam brand scoreboard insulation meets astm c578 type iv standard specification for rigid cellular polystyrene thermal insulation. The r value for foamular xps insulation is provided from testing at two mean temperatures 40ºf and 75ºf and from two aging conditioning techniques 180 day realtime aged as mandated by. 4 8 7 21.

Phenolic foam spray insulation. Best can foam gun on the market. 2 vertical compressive strength is measured at 10 percent deformation or at yield whichever occurs first. I have been an insulation installer for 13 years and this gun is great.

Styrofoam brand scoreboard is an r 10 insulation board. 4 5 21. With an r 5 value per inch the 2 in. 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.

R values are expressed in ft h f btu.