NotesFAQContact Us
Search Tips
ERIC Number: ED433684
Record Type: Non-Journal
Publication Date: 1996-Jun
Pages: 23
Abstractor: N/A
Reference Count: N/A
Demonstration of Cooling Savings of Light Colored Roof Surfacing in Florida Commercial Buildings: Our Savior's School.
Parker, Danny S.; Sherwin, John R.; Sonne, Jeffrey K.; Barkaszi, Stephen F., Jr.
A 2-year Florida study attempted to quantify air conditioning cost savings when buildings have a white reflective roof. A 10,000 square foot elementary school with a gray modified bitumen roof over plywood decking that had a solar reflectance of 23 percent was monitored for an entire year. After one year of building thermal conditions and electrical demand monitoring, the roof was covered with an acrylic white elastomeric coating that achieved a solar reflectance of 68 percent. Data show that classroom air temperatures were significantly lower during the second year of the study compared to the first. Additionally, chiller electric power use was reduced by an average of 10 percent, totaling 13,000 kWh in annual savings. However, peak electrical demand was much more strongly impacted than energy. Daily average annual demand reductions of 1.5 kW were observed during school hours. Confining the analysis to weekdays and during the summer greatly magnified differences. School staff also noted interior comfort conditions were noticeably improved by the white roofing system. (Contains 16 references, 7 figures, and 2 tables.) (GR)
Florida Solar Energy Center, 1679 Clearlake Rd., Cocoa, FL 32922-5703.
Publication Type: Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: California Univ., Berkeley. Lawrence Berkeley Lab.; Environmental Protection Agency, Washington, DC.; Department of Energy, Washington, DC.; Florida Governor's Office of Energy, Tallahassee.; Florida Power and Light Co., Miami.
Authoring Institution: Florida Solar Energy Center, Cape Canaveral.
Identifiers - Location: Florida