Designing truly green and energy efficient facilities extends far beyond just the synergy of HVAC, envelope and lighting systems. A completely holistic approach is needed for buildings of the future to qualify as high-performance. Just as 90.1 defines minimum standards for building systems and equipment, ASHRAE’s newest standard, Standard 189 (due out in early 2010) aims to codify all aspects of high-performance building design, including project siting, materials, indoor environmental quality, energy and construction practice.
The question facing facility executives, which the standard aims to address, is: How can the envelope, orientation, location of glass cladding and more help improve the lighting without negatively impacting the building’s heating and cooling? The key is to integrate building systems through early team collaboration. From the most conceptual stage of a project, engineers and architects must work together to limit each building’s cooling and heating loads. For example, optimizing the building’s site, massing and height from day one will help leverage the quality of the envelope and set the building up for high performance even before working toward systems efficiency.
Modern analytical tools have made this a reality. By employing cutting-edge modeling software, architects and engineers can investigate and employ innovative design strategies while minimizing risk to facility executives.
HIGH-TECH TOOL
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ASHRAE Expected To Toughen HVAC, Lighting, And Exterior Requirements In 2010 Version Of 90.1
ASHRAE's New Standard For High-Performance Buildings
