Roofing Solutions to Meet Title 24 Requirements

¹ Testing results according to CRRC

² ENERGY STAR® is a registered trademark of the U.S. government. The ENERGY STAR Program represents a voluntary partnership between businesses and organizations and the federal government to promote energy efficiency and environmental activities.

Guidelines for New Construction

Compliance may be achieved through any one of these three methods:

• Prescriptive Method, in which each individual building component (e.g., roofing) must meet a prescribed minimum energy requirement
• Building Envelope Trade-Off Method, which allows for trade-offs so that one highly efficient component (e.g., reflective roofing) can be used to offset the lower energy efficiency of another component (e.g., non-insulated windows or insufficient insulation)
• Building Performance Simulation, in which an energy consultant or engineer performs an energy performance evaluation for one year to prove that the building's energy use is less than that of a "standard building," based on prescriptive method requirements

Guidelines for Reroofing

Typically, a cool roof is required, as defined above. If the renovation extends beyond roofing, budgetary tradeoffs of the kind described under New Construction are also possible.