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A4.203.1.2.1 Roof Deck Insulation, or Ducts in Conditioned Space
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Meet one of the three options for the location of ducts and air handlers as well as insulation R-values and installation of a radiant barrier as specified in Title 24, Part 6, Section 150.1(c)9A or B:
- Below roof deck insulation with a minimum R-value of 19; or,
- Continuous above deck insulation with a minimum R-8 and with an air space present between the roofing and the roof deck; or,
- All ducts and air handlers in conditioned space as specified in the Title 24, Part 6, Reference Appendix RA3.1.
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Related Code Sections
A4.203.1.2.1 Residential Voluntary Measures, Roof Deck Insulation, or Ducts in Conditioned Space
insulation with a minimum R-8 and with an air space present between the roofing and the roof deck; or,
All ducts and air handlers in conditioned space ...
A4.203.1.2.1 Residential Voluntary Measures, Roof Deck Insulation, or Ducts in Conditioned Space
with a minimum R-8 and with an air space present between the roofing and the roof deck; or, All ducts and air handlers in conditioned space ...
A4.203.1 Residential Voluntary Measures, Energy Efficiency
above deck insulation with a minimum R-8 and with an air space present between the roofing and the roof deck; or, All ducts and air handlers ...
A5.205.3.4.3 — Voluntary Standards for Health Facilities [OSHPD 1, 2 & 4], Ducts
If insulation is installed on an existing space-conditioning duct, it shall comply with Section 605 of the California Mechanical Code (CMC) ...
A5.205.3.4.3 Voluntary Standards for Health Facilities [OSHPD 1, 2 & 4], Ducts
If insulation is installed on an existing space-conditioning duct, it shall comply with Section 605 of the California Mechanical Code (CMC) ...