Dow Styrofoam Insulation R Value

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.

Dow styrofoam insulation r value. Corrosion problems when in contact with steel roofing moisture. 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. R 0 77 30 phenolic foam insulation r values. 4 8 7 21.

8 3 4 4 8 2 20. Phenolic foam spray insulation. 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. Best can foam gun on the market.

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. 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. 4 5 21.

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. Especially with the tip extensions and getting in those tight spots. Dow styrofoam insulation blue board dow styrofoam insulation blue board is a nonstructural rigid board insulation manufactured of extruded polystyrene foam xps. 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.

Foam board insulation types. 2 in x 4 ft x 8 ft. 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. Very good air bypass leak sealing properties.

Since styrofoam brand extruded polystyrene foam insulations are visco elastic materials adequate design safety factors should be used to prevent long term. Styrofoam brand scoreboard is an r 10 insulation board. There are three basic foam insulation board products on the. R values are expressed in ft h f btu.

R value determined by astm c518.