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Title 24 Energy Compliance
Overview
2008 Building
Energy Efficiency Standards
Residential
Buildings Additions and Alterations
Commercial
Buildings Additions and Alterations
Fees and Proposals
Project Intake
Forms
FAQ
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FREQUENTLY ASKED QUESTIONS (FAQS)
When does a building project require a Title 24 analysis and report?
Whenever any of the following conditions are met, a project requires a
Title 24 energy compliance analysis and appropriate documentation:
- Whenever there is any new habitable space regardless of size, including
unconditioned nonresidential space with new lighting;
- Whenever there is an increase in the conditioned floor area of the
building(s);
- Whenever an existing unconditioned space such as a garage or attic
is converted to conditioned space;
- Whenever an existing heated space is legalized (e.g., a basement
family room which is being permitted as habitable space);
- Whenever fenestration (i.e., windows, French doors, skylights) in
a residential alteration does not meet the minimum U-Factor and SHGC
prescriptive requirements or an alteration includes more than 50 SF
of new fenestration area;
- Whenever a residential gas water heater is replaced with an electric
resistance water heater, or a gas furnace is replaced with an electric
resistance heater;
- Whenever 150 SF or more fenestration is replaced, or more than50 SF of fenestration is added to a nonresidential building, and the fenestration does not meet the prescriptive U-factor and SHGC specified in the Standards;
- Whenever 50% or more of the indoor lighting fixtures in the permitted area of a nonresidential building are replaced, or when there is an increase in the total installed watts in the permitted area;
- Whenever 50% or more of the outdoor lighting fixtures for a particular lighting application associated with the permitted area of a nonresidential building are replaced, or when there is an increase in the total installed watts for a particular lighting application in the permitted area; and,
- Whenever nonresidential or high-rise residential mechanical heating
and/or cooling equipment is installed for the first time or replaced
with new equipment.
What is conditioned space?
Conditioned space is any enclosed area with at least 10 Btuh/SF of mechanical
space heating or 5 Btuh/SF of mechanical space cooling. The space may be
either directly or indirectly conditioned.
Is Title 24 energy compliance documentation required for very small
additions?
Yes. Title 24 energy compliance documentation is required whenever there is any new conditioned space. Low-rise residential additions less than 100 SF with up to 50 SF of new fenestration (glazing) may be able to comply using a simple prescriptive approach instead of a more comprehensive computer energy analysis.
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