The following aided in our research:
EPA Energy Savers website: http://www.energysavers.gov
California Consumer Energy Center: http://www.consumerenergycenter.org
NAHB Research Center: http://www.toolbase.org/index.aspx
Carrier HVAC website: http://www.residential.carrier.com/products/acheatpumps/index.shtml
Canada Mortgage and Housing Corporation: http://www.cmhc-schl.gc.ca/en/co/renoho/refash/refash_033.cfm
Oregon Department of Energy website: http://www.oregon.gov/ENERGY/CONS/RES/tax/Radiant.shtml
ACEEE website: http://www.aceee.org/consumer/heating
Edwards Valance Cooling website: http://www.edwardsvalance.com/
This Old House website: http://www.thisoldhouse.com/toh/article/0,,1548320-2,00.htm
EPA BMP website: http://cfpub.epa.gov/npdes/stormwater/menuofbmps/index.cfm
Whole Building Design Guide: http://www.wbdg.org/resources/greenroofs.php
ASTM website: http://www.astm.org/SNEWS/AUGUST_2003/obeoli_aug03.html
EPDM Roofing Association: http://www.epdmroofs.org/research_resources/Speaking_from_experience.pdf
FacilititesNet website: http://www.facilitiesnet.com/roofing/article/TPO-on-Top–1741
Solar Estimate website: http://www.solar-estimate.org/index.php?verifycookie=1&page=white-roof&subpage=&external_estimator=
National Roofing Contractors Association: http://www.nrca.net/consumer/types/thermop.aspx#standards
Ecobroker website: http://www.ecobroker.com/misc/articleview.aspx?ArticleID=40