The criteria for an energy star labeled roof are.
Pinnacle roof meet energy star requirements.
Estimated roof surface temperature reduction based on 1998 nist study.
A roof that meets the energy star performance requirements is considered one that is cool and helps to reduce urban heat island effects.
See actual warranty for complete details limitations and requirements.
Environmental protection agency s energy star program began rating roofing materials for energy.
The energy star energy efficiency criteria do not include a specification for roof insulation.
Energy star certified roof products can help reduce the amount of air conditioning needed in buildings and can reduce peak cooling demand by 10 15 percent.
Energy star program requirements for roof products eligibility criteria 7.
So in 1999 the u s.
Initial minimum solar reflectance of 0 25 and 3 year aged minimum solar reflectance of 0 15.
Reflectivity requirements differ for low slope and steep slope roofs.
For steep slope applications greater than 2 12 pitch.
The provisions of title 24 allow for simulated aging called rapid ratings.
For energy star compliance the roof coverings must be naturally aged for three years then the reflectivity and emissivity are measured.
Maintenance of solar reflectance the test surface of each sample shall not be washed cleaned or wiped in any fashion prior to testing aged solar reflectance.
The hotter the roof the more energy it takes to cool the building beneath it.