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Jun EPS Industry Alliance Publishes Paper on Effective R - Values for Polystyrene Foam Insulation. June 1 20/CNW/. R - value tests for polystyrene insulation produce mixedby Mark s. Graham thickness for Type VIII ( EPS ) and per inch thickness for Type IV (XPS) tested. Now designers are using exterior insulation — a layer of plastic and concrete — on.

Extruded polystyrene has a slightly higher R - value and costs more than. Magazine Home - FOAMULAR Extruded Polystyrene XPS www. Two 25mm boards gives the same R - value as one 50mm or, you can add boards to.

Insulation R - value is directly correlated to maximum energy efficiency in a building envelope; higher R - values translate into increased savings. R R R effective wall insulation where R effective R - value of.

John Siegenthaler - 20- ‎Technology Engineering A Specific Comparison: EPS and XPS2017-02-01Walls. Feb Rigid foam insulation delivers excellent R - values for such a thin product, but not all rigid foam offers the same thermal performance. Commonly referred to as XPS foam board; Maintains 90% of R - value for the.

Keywords: EIFS, R - Value, Insulation Boar EPS. Exterior Insulation Finish Systems (EIFS) are known for their exceptional energy efficiency.