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Is Styrofoam good sound insulation? What is blue styrofoam? As insulators , pink and blue boards perform virtually identically, with an insulating value of R-per inch of thickness.
Styrofoam Brand Foam by Dow, typically referred to as blue board is the best known extruded polystyrene insulation on the market today. It is especially recommended for exterior cavity walls and foundations. It is denser than EPS and provides more R-Value with a rating of per inch of thickness. This foam board insulation is available with straight or tongue-and-groove edges to help limit air movement. This insulation board is probably one of the most widely used foam board insulation products in the residential construction industry.
XPS has an R value of 4. Expanded Polystyrene. It provides R-values that range from 3. Some products have reinforced facing to make them sturdier. Extruded Polystyrene.
Choose this option for areas that need a good amount of strength and water resistance. This is scored lengthwise on and inch centers. Blue board needs to be covered with a thermal barrier on the inside or with siding or other covering to the outside.




