What Is The R-value Of Concrete Walls?
What Is The R-value Of Concrete Walls? Material Thickness R-value (F° · sq.ft. · hr/Btu) Concrete Masonry Unit (CMU)8′′1.11 Concrete Masonry Unit (CMU) 12′′ 1.28 Concrete 60 pounds per cubic foot 1′′ 0.52 Concrete 70 pounds per cubic foot 1′′ 0.42 Is concrete wall a good insulator? It is true that concrete is not a