AIA COTE Passivhaus Presentation

THE PASSIVE HOUSE BUILDING ENERGY STANDARD

“ Passive House™ certification represents the most aggressive building energy efficiency standard in the world today, potentially resulting in 75 to 90% more energy efficiency than a standard building. Passive House presents a comprehensive approach to cost-effective, high quality, healthy and sustainable construction. ” PASSIV HAUS INSTITUT

©MARTIN HOLLADAY, GREENBUILDINGADVISOR.COM

FIRST PASSIVHAUS: DARMSTADT, GERMANY 1990

FIRST US PASSIVHAUS: URBANA, IL 2003

2kW = 80% REDUCTION !

HOW MUCH HEAT CAN YOUR VENTILATION AIR MOVE?

SPACE HEATING ENERGY ≤ 10 kWH / square meter / year or ≤ 4.75 kBTU / square foot / year

TOTAL SOURCE ENERGY USE ≤ 120 kWH / square meter / year or ≤ 38 kBTU / square foot / year

BUILDING SHELL AIR TIGHTNESS 0.6 ACH50 AIR CHANGES PER HOUR AT 50 PASCALS (~ A 20 MPH WIND)

©ROOT DESIGNBUILD INC

LEED-H PLATINUM NET-POSITIVE (better than Net-Zero!) 78 kWH / square meter / year 148 kWH / square meter / year 0.8 ACH50

1,875 WATTS = 6,400 BTU / HOUR 700 SF PASSIVHAUS HEATING LOAD

1,800 SF PASSIVHAUS HEATING LOAD

(3) $45 = $135

ENERGY BALANCE • 1/3 INTERNAL GAINS • 1/3 PASSIVE SOLAR • 1/3 HEAT SOURCE

THE PHPP

GOOD WINDOWS MINIMUM SUGGESTED R-VALUE: R-7

78 kWH / square meter / year

THERMAL BRIDGE FREE DESIGN MAXIMUM CONDUCTANCE: 0.01 W/mK or 0.0058 BTU / hr•ft•F

CONDUCTANCE OF STEEL: 29 BTU / hr•ft•F

BARRIERS

WHERE IS OUR THERMAL “ CANTILEVER ”

MAINE IS COLDER THAN GERMANY

DESIRE

THE TOWNHOUSE SWEET SPOT

LET ’ S GET ON WITH IT

AIA COTE Passivhaus Presentation

by kaplanthompson

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