References UN Framework Convention on Climate Change (UNFCCC) US DOE Carbon Dioxide Information Analysis Center (CDIAC) US EPA (2007 California Data)

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3 References UN Framework Convention on Climate Change (UNFCCC) US DOE Carbon Dioxide Information Analysis Center (CDIAC) US EPA (27 California Data)

4 References UN Framework Convention on Climate Change (UNFCCC) US DOE Carbon Dioxide Information Analysis Center (CDIAC) US EPA (27 California Data)

5 O Neill Residence, Sonoma, CA (21) 1 st Certified Passive House in CA 1 st Certified PH Retrofit in US Wood Residence, Sonoma, CA (212) PH Residence & Guest House Cedar St. Apartments, Berkeley, CA (212) Passive House Retrofit Green Gulch Farm Zen Center Muir Beach, CA (211) Passive House Dormitory SCE Prototype, Burbank, CA Singh-Hee Residence, Atherton, CA (211) PH Residence & Guest House Field-Chiariello Res., Portola Valley, CA (211) Passive House Retrofit Moe Residence, Shaver Lake, CA (212) PH Custom Home Midori Haus, Santa Cruz, CA (212) Passive House Retrofit 21 Units Affordable Housing, Whittier, CA

6 Climate Zone 9 Prescriptive Requirements Ceiling (R3): 7.5 Radiant Barrier: Required, assumed 33%! reduction Roof Absorptivity: NR, assumed! =.8 x.66 =.5 Walls (R13): 2x4 Slab (R): NR Glazing U-Value:.4 Btu/hr.ft2.ºF (Max) Glazing SHGC:.4 (Max) Maximum Glazing: 2%, 5% West (Max) Shell Leakage: NR, assumed 6 ACH 5 18 ft 2 (714m 2 ) TFA, 4 BR/3 BA!N

7 Heating & Cooling Demand Heating Demand Attic Insulation Wall Cavity Insulation 15 1 kwh/m2/yr Slab Insulation Slab Edge Insulation Roof Overhang Roof Absorptivity Window U Value Window SHGC Window SHGC (South Only) Orientation Air Tightness Heat Recovery Thermal Mass Cooling Demand % 6% 11% 16%

8 Heating & Cooling Demand Heating Demand Attic Insulation 1 kwh/m2/yr Wall Cavity Insulation Slab Insulation Slab Edge Insulation Roof Overhang Roof Absorptivity Window U Value Window SHGC Window SHGC (South Only) Orientation Air Tightness Heat Recovery Thermal Mass 5 Cooling Demand 23 1% 6% 11% 16%

9 Heating & Cooling Demand Heating Demand 7 15 kwh/m2/yr Attic Insulation Wall Cavity Insulation Slab Insulation Slab Edge Insulation Roof Overhang Roof Absorptivity Window U Value Window SHGC Window SHGC (South Only) Orientation Air Tightness Heat Recovery Thermal Mass Cooling Demand 5 2 1% 6% 11% 16% 4 3 kwh, W kbtu, Btu/hr Heating Demand Heating Load Cooling Demand Cooling Load Fresh Air Heating? No % Overheating 18%

10 3 Heating & Cooling Demand Heating Demand kwh/m2/yr Attic Insulation Wall Cavity Insulation Slab Insulation Slab Edge Insulation Roof Overhang Roof Absorptivity Window U Value Window SHGC Window SHGC (South Only) Orientation Air Tightness Heat Recovery Thermal Mass 5 Cooling Demand 21 55% 8% 15% 13%

11 13.5 Heating Load Heating Demand Attic Insulation 1 W/m Wall Cavity Insulation Slab Insulation Slab Edge Insulation Roof Overhang Roof Absorptivity Window U Value Window SHGC Window SHGC (South Only) Orientation Air Tightness Heat Recovery Thermal Mass -15 Cooling Demand % 8% 15% 13%

12 12 Cooling Load Heating Demand Attic Insulation 5 Wall Cavity Insulation W/m Slab Insulation Slab Edge Insulation Roof Overhang Roof Absorptivity Window U Value Window SHGC Window SHGC (South Only) Orientation Air Tightness Heat Recovery Thermal Mass Cooling Demand 9 55% 8% 15% 13%

13 Cooling Load Heating Demand 11 1 Attic Insulation 5 W/m Wall Cavity Insulation Slab Insulation Slab Edge Insulation Roof Overhang Roof Absorptivity Window U Value Window SHGC Window SHGC (South Only) Orientation Air Tightness Heat Recovery Thermal Mass Cooling Demand % 8% 15% 13%

14 14 Heating & Cooling Demand Heating Demand 1 13 Attic Insulation 5 kwh/m2/yr Wall Cavity Insulation Slab Insulation Slab Edge Insulation Roof Overhang Roof Absorptivity Window U Value Window SHGC Window SHGC (South Only) Orientation Air Tightness Heat Recovery Thermal Mass Cooling Demand 7 55% 8% 15% 13%

15 Heating Demand (kwh/ ft2/yr) Heating Load (W/ft2) Cooling Demand (kwh/ ft2/yr) Cooling Load (W/ft2) % Overheating 2

16 Performance Measure Code Compliant Passive House Reduction Heating Demand 428 kwh/yr 14,68 kbtu/yr 1374 kwh/yr 4688 kbtu/yr 68% Heating Load 4134 W 14,11 Btu/hr 1712 W 5842 Btu/hr 59% Cooling Demand 1349 kwh/yr 464 kbtu/yr 334 kwh/yr 1139 kbtu/yr 75% Cooling Load 227 W 7746 Btu/hr 1338 W 4567 Btu/hr 41%

17 Climate Zone 9 Prescriptive Requirements Ceiling (R3): 7.5 Walls (R13): 2x4 Slab (R): No Insulation Glazing U-Value:.4 Glazing SHGC:.4 (Max) Maximum Glazing: 2%, 5% West (Max) Shell Leakage: None, Assumed 6 ACH 5

18 Heating & Cooling Demand 4. Attic Insulation 3.5 Wall Cavity Insulation Floor Cavity Insulation kwh/m2/yr Top of Slab Insulation Exterior Door U-Value Roof Absorptivity Window U Value Window SHGC Window SHGC (South Only) 2. Orientation Air Tightness 1.5 1% 2% 3% 4% 5% 6% 7% 8% 9% 1 % 11 % 12 % 13 % 14 % 15 % 16 % 17 % 18 % 19 % Heat Recovery Thermal Mass

19 6, Cumulative Improvement 5, kwh/yr W 4, 3, 2, 1,!Baseline Step 1 Step 2 Step 3 Step 4 Step 5 Step 6 Heating Demand Heating Load Cooling Demand Cooling Load Step 1: Air Tightness Step 2: Heat Recovery Ventilation Step 3: 2x6 Wall Insulation Step 4: Cool Roof Step 5: Energy Star Glazing Step 6: Exterior Shades

20 PERFORMANCE METRIC CODE MINIMUM PASSIVE HOUSE REDUCTION Annual Heating 56,259 kwh/yr 25,137 kwh/yr 55% Annual Cooling 16,938 kwh/yr 9,693 kwh/yr 43% Heating Load 34,775 W 14,378 W 59% Cooling Load 26,641 W 18,685 W 3%

21 21 Gas Furnaces vs Central Heat Recovery Ventilation & 14,378 W (49, Btu/hr) Total Heating Load

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