The Minimum Standards and Guiding Principles

SUSTAINABLE DESIGN GUIDING PRINCIPLES. ... R-values for walls and roofs should exceed ASHRAE 90.1-2010 minimum requirements, with a target of R-20 - R-30 for walls and R-30 for roofs. New designs shall incorporate high performance glazing systems, assemblies with U-values at or below 0.25 and low Solar Heat ... ................
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