Residential guide 97 Table Climate zones C A and B Component IECC IECC IECC IECC Net Zero Wall Insulation Option Wall Cavity Insulation R-value Wall Insulation Option R- R- R- R- R- Double Wall Wall Cavity Insulation R-value Wall Continuous Insulation R-v

Table Climate zones C A and B Component IECC IECC IECC IECC Net Zero Wall Insulation Option Wall Cavity Insulation R-value Wall Insulation Option R- R- R- R- R- Double Wall Wall Cavity Insulation R-value Wall Continuous Insulation R-value R- R- R- R- R- R- R- R- R- R- Ceiling Insulation R-value R- R- R- R- R- Conditioned Basement or Crawl Space Basement Ceiling Insulation None None None None None Under Slab Insulation None None None None None Basement Wall R- inside R- inside R- inside R- inside R- inside Unconditioned Basement or Crawl Space Basement Ceiling Insulation R- R- R- R- R- Under Slab Insulation None None None None None Basement Wall None None None None None Slab Under Slab Insulation Level None None None None None Slab Edge Insulation Level R- ft R- ft R- ft R- ft R- ft Window U-value SHGC House Tightness ACH Ventilation Duct Location Duct Insulation U SHGC NA U SHGC NA or Checklist Checklist No Heat Exchange No Heat Exchange Not Speci ?ed Not Speci ?ed R- R- R- R- U SHGC NA Checklist No Heat Exchange Conditioned Space R- U SHGC NA Checklist HRV SRE Conditioned Space R- U SHGC Checklist HRV SRE w bypass Conditioned Space R- Heater Type Heater E ?ciency AC E ?ciency SEER Typically Gas Furnace Minimum Allowed Minimum Allowed Typically Gas Furnace Minimum Allowed Minimum Allowed Typically Gas Furnace AFUE Typically Gas Furnace AFUE Air Source HP HSPF Minimum Allowed Minimum Allowed Appliances Water Fixtures Lighting Hot Water Heating Not Speci ?ed Not Speci ?ed Not Speci ?ed Minimum Allowed Not Speci ?ed Not Speci ?ed Not Speci ?ed Minimum Allowed Not Speci ?ed Not Speci ?ed Energy Star Energy Star Low Flow Fixtures Energy Star Minimum Allowed Minimum Allowed Energy Star Low Flow Fixtures Fluorescent or LED HP EF Attic Other No insulation required in the conditioned space SEER except Alabama Arkansas Delaware Florida Georgia Hawaii Kentucky Louisiana Maryland Mississippi North Carolina Oklahoma South Carolina Tennessee Texas Virginia Arizona California Nevada and New Mexico require SEER after January C ?

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