"Title 24 requirements haven't hit the homeowner yet," says Orlando Guastella of San Rafael's Aussie Roofing, who installs modified-bitumen, "but at any time, we can add a white 'green' material [with 'cool roof' qualities] to an emulsion, and paint over the modified installation." Similarly, tar-and-gravel roofs can achieve varying levels of reflectivity with white gravel, or with the mineral cap system, common on commercial roofs.
Nearly a third of the electricity consumed on a hot summer afternoon is purchased to keep buildings cool. California's energy supply challenges are being driven by a shortage of power during these peak periods. "A 'cool roof' can reduce these significant electricity-consumption levels in any one building by as much as 40 percent," says Adam Gottleib, information officer for the California Energy Commission.
Photos: David Toerge, Michael Greene, Don Kellogg, Rochelle Kramer; and courtesy Abril Roofing, Inc., Dura-foam, Inc., Duro-Last Roofing, Inc., Neptune Coatings Corp., Chris Hemphill
For your next roofing project, consider the Eichler Network's roofing team of 'Preferred Service Companies':
• Abril Roofing, Inc. (foam): abrilroofing.com
• Aussie Roofing, Inc. (modified): aussieroofing.com
• Cal-Pac Roofing (single-ply): cal-pacroofing.com
• Done-Rite Roofing (single-ply): 916-801-6550
• Dura-foam, Inc. (foam): dura-foam.com
• Northern Pacific Roofing (single-ply): northernpacificroofing.com
• Worrell Roofing (modified): worrellroofing.com