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California Guidelines (Title 24)

California Climate Zones
The 2013 standards’ requirements are based on 16 defined climate zones within the state. The requirements consist of three elements:
-Mandatory Requirements
-Prescriptive Compliance
-Performance Compliance Climate zones

Performance Method:
This method uses approved compliance software to demonstrate compliance for the entire building based on trade-offs among various installed features.

 

2013 Approved Computer Compliance Programs

Prescriptive Method:
This method has specific criteria that must be met and is often considered too restrictive. The prescriptive maximum U-factor for all fenestration is 0.32. The precriptive maximum SHGC for most climates is 0.25. (See Table 150.1-A)
The weighted average of all fenestration cannot exceed 0.58.

Future Criteria:
2016 Standards will go into effect on January 1, 2017

 

California Energy Code
(Part 6 of Title 24)

California Building Code
(Part 2 of Title 24)

California Green Building Standards (CALGreen)
(Part 11 of Title 24)

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