@article {55849, title = {Measured energy savings from the application of reflective roofs in two small non-residential buildings}, journal = {Energy}, volume = {28}, number = {9}, year = {2003}, note = {

0360-5442Added to JabRef: 2010.04.16

}, month = {07/2003}, pages = {953-967}, chapter = {953}, abstract = {

Energy use and environmental parameters were monitored in two small (14.9 m2) non-residential buildings during the summer of 2000. The buildings were initially monitored for about 1 1/2 months to establish a base condition. The roofs of the buildings were then painted with a white coating and the monitoring was continued. The original solar reflectivities of the roofs were about 26\%; after the application of roof coatings the reflectivities increased to about 72\%. The monitored electricity savings were about 0.5 kWh per day (33 Wh/m2 per day). The estimated annual savings are about 125 kWh per year (8.4 kWh/m2); at a cost of $0.1/kWh, savings are about $0.86/m2 per year. Obviously, it costs significantly more than this amount to coat the roofs with reflective coating, particularly because of the remote locations of these buildings. However, since the pre-fabricated roofs are already painted green at the factory, painting them a white (reflective) color would bring no additional cost. Hence, a reflective roof saves energy at no incremental cost.

}, keywords = {cool roof, Heat Island}, doi = {10.1016/S0360-5442(03)00032-X}, author = {Hashem Akbari} }