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Phoenix Arizona Cool Roof Council Presentation
- 1. Working to Keep You Cool
- 2. What is the Arizona Cool Roof Council? The Arizona Cool Roof Council (ACRC) is a non-profit independent organization that promotes the use of cool roofing materials in new and renovated roof systems. We are an educational resource for roof designers, installers, and building owners. We are not affiliated with nor do we promote any particular product or manufacturer other than those categorized by the EPA as “Energy Star” rated. Our goal To educate in the design of roofing systems, to reduce energy consumption, and meet the guidelines set forth by Department of Energy, Environmental Protection Agency and Energy Star.
- 3. What is a Cool Roof ? A cool roof may be defined differently by different codes or programs, in simple terms, a cool roof reflects and emits the sun's heat back to the sky instead of transferring it to the building below. quot;Coolnessquot; is measured by two properties, solar reflectance and thermal emittance. Both properties are measured from 0 to 1 and the higher the value, the quot;coolerquot; the roof. (www.crrc.org) Solar Reflectance The amount of solar radiation that is reflected away from a surface-- ranging from Ultra-Violet to near Infrared. (www.crrc.org) Emissivity The amount of absorbed energy, which is no longer classified as energy but is characterized by temperature (heat), that is radiated away from the surface. (www.crrc.org)
- 5. SRI Value (ASTM Standard E 1980) The combined value of reflectivity and emissivity and is a measure of the roof’s ability to reject solar heat, as shown by a small temperature rise Materials that are very cool can achieve an SRI value greater than 100 and hot materials can have a negative number. The highest SRI values are the coolest and most effective energy efficient roofing materials
- 6. Benefits of Cool Roofing • Reduce Energy Costs • Increase HVAC Efficiency • Lower Life Cycle Costs • Reduce Air Pollution • Increase Occupant Comfort • Reduce “Urban Heat Island Effect”
- 7. Single Ply SRI Value 104
- 8. Polyurethane Foam SRI Value 107
- 9. Coatings
- 10. Urethane Coating over a Modified Bitumen SRI Value 104
- 11. Acrylic Coating over Granulated BUR SRI Value 107 April 24, 2007 @ 12:30 pm April 24, 2007 @ 12:30 pm Prior to Cool Roof Coating After Cool Roof Coating Ambient temp 88 degrees Ambient temp 88 degrees
- 12. By Utilizing Roof Restoration Coating Systems We Create Sustainability A roof system that is designed, constructed, maintained, rehabilitated and demolished with an emphasis throughout its life cycle on using natural resources efficiently and preserving the global environment http://www.professionalroofing.net/article.aspx?A_ID=422
- 13. Acrylic Coating Recoat Built in 1978 Smooth BUR First coated in 1992 Restored again in 2007
- 14. Acrylic Coating Recoat Smooth BUR First coated in 1997 Restored again in 2007
- 15. Contact Information Board of Directors Director: Dave Coultrap Assistant Director: Jerry Brown Assistant Director: Ron Brown Secretary: Mark Yarish Treasurer: Michelle Brown Officer: Joe Volinsky Officer: Jeff Starkweather www.azcoolroof.com Phone: 623-878-7117 Fax: 800-861-3792
- 16. Be Cool Keep It Cool