Insulation is rated for heat reflectivity using which symbol?

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Multiple Choice

Insulation is rated for heat reflectivity using which symbol?

Explanation:
Heat reflectivity is about how well insulation bounces radiant heat away rather than how well it resists heat flow. To quantify that property, a reflectivity coefficient is used, and in this context the symbol for that rating is C. A higher C indicates more radiant heat is reflected, which helps keep spaces cooler in sunny conditions. This is different from R-value, which measures resistance to heat transfer by conduction and convection, and other symbols in insulation ratings refer to those other properties. So the symbol used for heat reflectivity is C.

Heat reflectivity is about how well insulation bounces radiant heat away rather than how well it resists heat flow. To quantify that property, a reflectivity coefficient is used, and in this context the symbol for that rating is C. A higher C indicates more radiant heat is reflected, which helps keep spaces cooler in sunny conditions. This is different from R-value, which measures resistance to heat transfer by conduction and convection, and other symbols in insulation ratings refer to those other properties. So the symbol used for heat reflectivity is C.

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