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Brick — Insulation R Values
71 to 73 · 49 lb/ft³, 80 F, 1.45 W/mK
Brick (block) thermal insulation performance data. Clay tile brick . Tabulates tested across 3 mean temperatures from 80 to 92°F, densities 40.2–49 lb/ft³. Performance: thermal conductivity 1.13 to 1.45 W/m·K; R-value per inch 0.099 to 0.128 ft²·°F·hr/BTU/in.