Certified Passive House project

No. 1042
Project Lankford House
Status Certified
Lead CPHC John Semmelhack
Builder Jobes Builders
Location Charlottesville, VA
Constr. type Timber
Bldg. function Single Family
Floor area 1,713 s.f.
Project type New Construction
HERS Index 40
Leed rating
Energy star rating 2.0
Heating degree days 4000
Cooling degree days 1200
Units 1
Exterior wall Double-stud wall with "Agribalance" open cell spray foam (R-41)
Floor 12" TJI with dense-pack cellulose over crawlspace (R-45)
Roof 12" TJI with "Agribalance" open cell spray foam and 2" closed cell roof foam (R-64)
Window frame Serious Windows 725 series
Window glazing Serious Windows 725 series
Entrance door Serious Windows 725 series
Ventilation Ultimate Air 200DX
Heating system Mitsubishi multi-split heat pump with two wall-mounted indoor units
Domestic hot water GE heat pump water heater
Air tightness 0.42 ACH50
Other (non-PH) Ecological Aspects
Annual heating demand 3.91 kBtu/ft2.yr
Heat load 8330 Btu/hr
Primary energy requirement 9.0 kWh/ft2.yr
Construction costs
Cooling system Mitsubishi multi-split heat pump with two wall-mounted indoor units
Architecture planning Giovanna Galfione-Cox
Mechanical systems designer Albemarle Heating + Air / Think LIttle
Additional consultants
Phius comments
Additional notes

Main photo