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Pie chart of how builders and contractors meet building insulation requirements: 58% build to performance standards, 39% to prescriptive code and 3% use trade-off.

How Commercial Builders Are Meeting Insulation Requirements: Insights from 150 Builders and Contractors

According to the U.S. Department of Energy’s Building Energy Codes Program, commercial building energy codes such as ASHRAE 90.1 provide both prescriptive and performance-based compliance paths. Performance-based methods allow designers to trade off certain building components while meeting overall energy performance targets through energy modeling, offering greater flexibility and opportunities for cost optimization.