ASHRAE and the International Energy Conservation Code (IECC) are the major design standards for new and retrofit buildings in the United States. Both standards have upgraded their model building energy codes. For ASHRAE, those new standards took effect in October, 2010, while the IECC codes will be published sometime this year. The new standard is for buildings to be 30% more energy efficient than they were based on the previous standard. How does the new standard achieve this? There are several combined strategies but the focus for Pinnacle and LW Supply customers is to raise the building system R-value (or lowering the U-value) of exterior walls. The new version uses climatic zones to prescribe building envelope requirements. While the national standard defines 8 climate zones, California defines 16. Each of these zones define the prescriptive or performance requirements for structures built in the zones. The prescriptive method is the easiest way to achieve compliance for standard buildings while performance based methods are better for non-standard designs. The new standards as it relates to you, our customers, means that minimum mass wall R-values have increased plus there’s the addition of continuous air barrier requirements (higher insulation, lower infiltration). Improving U-values by keeping Window-to-Wall ratios to 30% and by increasing the R-value of exterior walls using continuous insulation, heat loss/gain is reduced by 40% which means less energy consumption, more energy efficiency. Dryvit’s Outsulation EIFS is a proven system with years of significant experience in various applications to make seamless the shift to these new energy code requirements. For more information, please email us.