Everything You Should Know About Replacement Windows and Title 24



The benefits of energy-efficient window replacement are known to CRE investors. They provide the property with a fresh look, they reduce energy costs and most importantly, they keep tenants turnover low. All of these contribute to healthier cashflow and better bottom line.


While the heavy investment in energy-efficient window was a smart choice in the past, it was still a choice. Today title 24 requires the use of energy efficient windows.


What is Title 24

The California Title 24 Building Energy Efficiency Standards are designed to ensure new and existing buildings achieve energy efficiency and preserve outdoor and indoor environmental quality. These measures (Title 24, Part 6) are listed in the California

Code of Regulations. The California Energy Commission is responsible for adopting, implementing and updating building energy efficiency. Local city and county enforcement agencies have the authority to verify compliance with applicable building codes, including energy efficiency.

California’s energy code is designed to reduce wasteful and unnecessary energy consumption in newly constructed and existing buildings.

What buildings are covered by the standards?

All new construction of, and additions and alterations to, residential and nonresidential buildings are covered with the exception of correctional centers, jails, and prisons.

Why do the standards vary by climate zone?

Measures that are cost effective in more extreme climates may not be cost effective in milder climates. Requiring measures by climate zone ensure that a building will have the most energy efficient features for that area. There are 16 climate zones in the state.


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