CALIFORNIA - TITLE 24 COMPLIANT

Download PDF - BUILDING ENERGY EFFICIENCY STANDARDS FOR RESIDENTIAL AND NONRESIDENTIAL BUILDINGS

New building energy efficiency standards to go into effect Jan. 1, 2020

As the first state to establish legislation to reduce energy consumption in homes and buildings in 1978, California has paved the way toward greater efficiency ever since. The latest iteration of the California Title 24, Part 6, scheduled to go into effect Jan. 1, 2020, will require that all new buildings achieve Net Zero Energy (NZE) levels by 2020 for residences and 2030 for commercial buildings – once again pushing the envelope in terms of efficiency.

With fenestration accounting for significant impacts on heating and cooling loads, window and door requirements continue to tighten. But by how much?

Here’s what you need to know about the 2019 Title 24 updates for residential buildings:*

The maximum U-factor for windows will be 0.30 (previously 0.32).
The maximum SHGC in cooler climates will be 0.23 (previously 0.25).
The maximum U-factor for doors with less than 25% glazing will be 0.20.
Skylight requirements remain unchanged.

The vertical fenestration in commercial buildings will remain the same as the 2016 version of the standard with a maximum U-factor of 0.36 for fixed windows, 0.46 for operable windows, 0.41 for curtain wall or storefront and 0.45 for glazed doors.