Energy Star

Energy Star is a joint program between the US Department of Energy (DOE) and the US Environmental Protection Agency geared toward helping consumers select products/practices that help save money through energy efficiency and protect the environment. This program is strictly voluntary for manufacturers to submit and become part of a select group of the EPA/DOE. IB Roof Systems recognized the importance of being a part of this program and had its products certified many years ago for testing and approval. Today, IB continues to proudly offer its customers certified products to install and protect the environment.

Below are the Energy Star Roof Products Key Product Criteria for Low-Slope roofs. To learn more about Energy Star and how roofing materials work together, visit www.energystar.gov.

Equipment Specification
Roofing
  • Low-Slope roofs must have an initial solar reflectance of >= 0.65. After 3 years, the solar reflectance must be >= 0.50.
  • Steep Slope roofs must have an initial solar reflectance of >= 0.25. After 3 years, the solar reflectance must be >= 0.15.
Table 1 — Specifications for ENERGY STAR Qualified Low-Slope Roofs
Characteristic Performance Specification
Energy Efficiency  
Initial Solar Reflectance Greater than or equal to 0.65.
Maintenance of Solar Reflectance Greater than or equal to 0.50 three years after installation under normal conditions.
Reliability  
Manufacturer warranty for defects in materials and manufacturing Each company's warranty for reflective roof products must be equal in all material respects to the product warranty offered by the same company for comparable non-reflective roof products. A company that sells only reflective roof products must offer a warranty that is equal in all material respects to the standard industry warranty for comparable non-reflective roof products.

Low-Slope Roofs:

Surfaces with a slope of 2:12 inches or less. (As defined in ASTM Standard E 1918-97).

Low-Slope Roof Products:

Products that are typically installed on low-slope surfaces such as single-ply membranes, built-up-roofs (BUR), modified bitumen, spray polyurethane foam, roof coatings, and standing-seam profiled metal. Some products that are typically installed on low-slope roofs may also be installed on steep-slope roofs (e.g., single-ply membranes and roof coatings). For the purposes of this Web site, the roof product will constitute the uppermost surface of the building structure.

Solar Spectrum:

Radiation originating from the sun, including ultraviolet, visible, and near-infrared radiation. Approximately 99% of solar energy lies between wavelengths of 0.3 to 3.5 micrometers.

Solar Flux:

The direct and diffuse radiation from the sun received at ground level over the solar spectrum expressed in Watts per square meter.

Solar Reflectance:

The fraction of solar flux reflected by a surface expressed as a percent or within the range of 0.00 and 1.00.