How do I calculate the conditioned floor area of a building? For the purposes of Title-24 energy code compliance analysis the Conditioned Floor Area (CFA) is the total floor area (in square feet) of enclosed conditioned space on all floors of a building, as measured at the floor level of the exterior surfaces of exterior walls […]
The California Energy Commission voted 5-0 Wednesday, May 9, to adopt new energy building standards requiring solar panels for virtually all new homes built in the state starting in 2020. ..Article in Orange County Register
The current 2016 Title-24 Building Energy Code Standards contains new indoor ventilation requirements. California has adopted the residential standards of ASHRAE 62.2 All low-rise residential buildings must have a whole house ventilation system that provides a calculated minimum amount of outdoor air by using either a continuously running bathroom fan or a supply or return […]
What is a NFRC window label & why do I need it? . The 2016 California Title-24 Building Energy Standards require that the efficiency of windows and doors be documented in the Title-24 compliance calculations using one of two allowable methods. NFRC or the default assumptions. We’ll address both methods: . NFRC: . The NFRC […]
. . On May 1, 2017 Santa Monica became the first city to adopt zero-net energy (ZNE) requirements. The State of California is planning to implement such a code state-wide but this will not be implemented until the 2020 T-24 code cycle so Santa Monica is out in front with net-zero. . The basic premise […]
. Question: What is a high performance attic? . Answer: The new 2016 Title-24 Building Efficiency Standards now has prescriptive requirements for high performance attics using a number of construction methods. The underlying principle for all methods involves reducing attic temperatures with the additional benefit of improving the performance of HVAC ducts that travel thru the […]
. The new 2016 Title-24 Energy Code requires that new HVAC systems meet minimum airflow requirements and supply fan efficiencies. . Studies have shown that a significant number of HVAC installations suffer from low airflow problems. Typically the main culprit is undersized return air design. . The new T-24 energy code requires that the airflow […]
. The new 2016 Title-24 Energy Code requires that all CF-1R forms must be registered and signed off by the architect/designer of record. . This process begins with the architect registering with either CalCerts or CHEERS, two of the approved HERS providers in the State. We suggest you register with both as some of your projects will […]
. The new 2016 Title-24 Building Efficiency Standards require mandatory HERS duct testing for all new construction and HVAC changeouts where the ducts are altered. . In addition minimum airflow requirements must be met and tested by an independant HERS rater. . We recommend HVAC installers become familiar with these new rules and perform their […]
The new 2008 Title-24 Building Energy Standards have been formally adopted by the California Energy Commission and are slated to be enforced in April of 2009. Click below for a summary of the Residential and the Non-Residential changes. 2008 Title-24 summary