Re-Arch: The Initiative for Renewable Energy in Architecture PDF
Preview Re-Arch: The Initiative for Renewable Energy in Architecture
Re-Arch: The Initiative for Renewable Energy in Architecture Best Practices in Daylighting & Passive Systems for Smaller Commercial Buildings Thomas Brown, Architect, LEED-AP Project Team: University of Minnesota College of Design (CDes) Midwest Renewable Energy Society (MRES) Part 3 – Center for Sustainable Building Research (CSBR) Daylighting Fundamentals Midwest Renewable Energy Association (MREA) American Institute of Architects Minnesota (AIA MN) Studies Green Institute Strategies Funded in part by the Minnesota Pollution Control Agency (MPCA) • Daylighting as a Passive System – Basic Concepts – Best Practices • Daylighting Resources – Books – Websites • Daylighting Calculations – Guidelines – Rules of Thumb – Web-based Tools • Window Parameters • Skylight Parameters • Daylighting – Studies • Source: Arch-Record-Grand-Central-Station-1.jpg • Daylighting – Studies – Investment Seattle City Light Sustainability Studies - Bottom Line • 2 percent of the 30-year costs of a building are in its initial construction • 6 percent is expended on operations and maintenance • 92 percent is spent on the people who work there. • Source: www.ci.seattle.wa.us/light/conserve/sustainability • Daylighting – Studies – Work environment Environmental Building News - Productivity A typical company annually spends: • about $2 per square foot for energy in an office building • about $20 per square foot for rent • about $200 per square foot on labor • Thus, a one-percentage-point improvement in worker productivity could save as much money annually as the company’s entire energy budget • Source: Environmental Building News 9-99 –www.buildinggreen.com Environmental Building News - Schools • Daylighting Heschong-Mahone Study – Studies • Students in classrooms with the most daylight had a 20% to 26% – Education faster learning rate than students in classrooms with only artificial light. • Students in classrooms with the largest window area learned 15% to 23% faster than students in classrooms with the smallest window area. • Students in classrooms with central skylights that diffused the incoming light had 19% to 20% faster learning rates than students in rooms with no skylights • Students in classrooms with non-diffusing skylights (where glare from direct sunlight may have been a problem) had a 21% lower improvement in reading than students in rooms with no skylights. • Classrooms with operable windows were associated with 7% to 8% greater improvement in test scores than students in classrooms with fixed windows. • Source: Environmental Building News 9-99 –www.buildinggreen.com • Daylighting – Studies – Education NREL - Productivity in the Office & Schools Four Oaks Elementary School, CA • Daylit school • First year test scores increased to 9%above the county average. • Between 1988 and 1992, Four Oaks had a 15% increase in test scores. • 3% higher than the county’s 12% average ( Heschong-Mahone) • Source: www.nrel.gov/docs/fy02osti/30769.pdf • Daylighting Seattle City Light Sustainability Studies - Learning – Studies Seattle Public School District, Seattle, Washington – Education • Students in classrooms with largest window area or the most daylight tested 9% to 15% higher than those with the least window area or daylighting • Students in skylit classrooms tested 6% to 7% higher Poudre School District, Fort Collins, Colorado • 7% improvement in test scores in classrooms with the most daylighting • 14% to 18% improvement for students in classrooms with the largest window areas • 3% effect for classrooms with roof top monitors for math scores but with no significant effect on reading scores Study by Heschong Mahone Group, Daylighting In Schools 1999 • Source: www.ci.seattle.wa.us/light/conserve/sustainability • Daylighting – Studies – Education Solatube - Education/Student Performance Roy Lee Walker Elementary School, McKinney, Texas • Extensive use of daylighting in every classroom • $40,000 to $50,000 per year savings in energy costs (National Renewable Energy Laboratory Report, “Daylighting in Schools: Improving Student Performance and Health at a Price Schools Can Afford,” 2000) (School Planning & Management, March 2001) Pittsburgh-area elementary school • After skylights were installed, attendance records rose from the state average of 93.5% to 95% (Pittsburgh Post-Gazette, February 15, 2000) • Source: www.solatube.com/com_daylightingfacts.php • Daylighting – Studies – Work environment Johnson Controls Personal Environments Study - Executive Summary • A direct correlation exists between environmental comfort and employee productivity in open office environments. • At minimum, 1% of the salaries in an average 500,000-square-foot office building amounts to more than $975,000. • A 2.8% productivity gain is absolutely possible when employees are given control over their environments. • That same 3% productivity gain would translate into $2,925,000 per year of productivity improvements in the average 500,000- square-foot office • Source: www.johnsoncontrols.com/cg/PersEnv/pe_whitepaper.htm
Description:The list of books you might like
