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R Value of Insulation - Maintaining Energy Efficient Insulation

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R Value of Insulation - Maintaining Energy Efficient Insulation

Why is R-value important? How do you determine its true value?  Building Science Leader Theresa Weston, PH.D., discusses how to maintain energy efficient insulation. She looks at air movement, surrounding materials and air barriers — and the best way to achieving a specified R-value. She also offers up resources for support and installation.