What is Title 24 HERS Testing?
HERS (Home Energy Rating System) testing is third-party field verification under Title 24, performed by certified raters (not the builder/contractor) to confirm installed features match the report. It uses diagnostic tools for: Mandatory for new HVAC, ducts in unconditioned spaces, and high-performance credits. Raters document on CF3R forms; failure requires fixes before final inspection.
What is a Title 24 Report?
A Title 24 report is the official documentation (CF-series forms) from energy calculations, including compliance certificates (CF1R), installation certificates (CF2R), and verification forms (CF3R). It details how the project meets standards and must be registered with a CEC-approved HERS provider for review by building officials. Submitted during plan check; non-compliance delays permits.
What are Title 24 Calculations?
Title 24 calculations are energy simulations using approved software to verify a project’s compliance with Part 6 standards. They compare proposed designs against a “standard design” energy budget (in TDV—Time Dependent Valuation units) tailored to the building’s size, type, and climate zone. Two paths: Inputs include envelope details, HVAC specs, lighting power, solar sizing, and […]
What are Title 24 Requirements?
Title 24 requirements apply statewide to permitted projects, enforced by local building departments. They cover: Category Key Requirements Building Envelope Minimum insulation R-values (e.g., walls R-13 to R-21 by zone), air leakage ≤5 ACH50, cool roofs in hot zones. HVAC High-efficiency systems (e.g., SEER ≥14 for AC), duct sealing/testing, heat pumps prioritized for heating. Lighting […]
What is Title 24 Part 6?
Title 24, Part 6 is the Building Energy Efficiency Standards (California Energy Code), mandating minimum performance for new construction, additions, and major alterations. It sets prescriptive (component-specific) or performance (whole-building modeling) paths to meet energy budgets based on climate zone and building type. Key goals: promote renewables, decarbonization, and indoor air quality. The 2025 update […]
What is Title 24 California?
Title 24 refers to the California Building Standards Code, a comprehensive set of regulations in the California Code of Regulations that governs building design, construction, and maintenance to ensure safety, energy efficiency, and sustainability. Enacted in 1978 in response to the 1970s energy crisis, it unifies standards for structural, mechanical, electrical, plumbing, and energy systems […]