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Codes now mandate minimum requirements for thermal insulation


Professional Roofing


5/1996

26-28

building codes; minimum requirement; thermal insulation; ASHRAE 90.1-1989; energy code;

The amount of thermal insulation employed in roof systems used to be determined by budget; now it's dictated by codes. This article addresses, the background, developmeent, implementation and enforcement of code requirements that dictate the minimum amount of thermal insulation for roof systems.


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