Title 24 is the California energy code.

Title 24 2022 Update-Impact on Single-Family Building

Performance Compliance:

New energy design rating (EDR) metrics – EDR1, Title 24 Compliance now require to meet EDR1, efficiency EDR2, and total EDR2 separately.

Prescriptive Compliance:

  • Space heating equipment must be a heat pump only in certain climate zone.
  • Water heating equipment must be an HPWH meeting certain criteria or a solar water heating system with an electric backup.
  • a gas instantaneous water heater in a certain climate zone is allowed if the space air conditioning unit is a heat pump
  • install a tankless electric water heater with point-of-use distribution is allowed in the new unit under 500 SF
  • a whole-house fan is not required in a new dwelling unit with a conditioned floor area under 500 SF

Building Envelope a key element in title 24 compliance

Building Envelope: A Key Element in Title 24 Compliance

In California, the energy efficiency of buildings is controlled by Title 24 of the California Code of Regulations. To follow these rules, it’s important to know about the building envelope. The building envelope includes the walls, roof, and windows, and it affects how energy efficient a building is. This article will talk about the building envelope and how it relates to following Title 24.


Understanding the Impact of Different Insulation Types on Title 24 Compliance

Title 24 regulations require that all new residential and non-residential buildings in California meet specific energy efficiency standards. One critical component of meeting these standards is the proper insulation of the building envelope. The insulation’s purpose is to minimize heat transfer between the interior and exterior of the building, reducing the need for heating and cooling and saving energy and money.