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No. 1186 Project 4564 19th Street Passive House Retrofit Status Certified
Lead CPHC Graham Irwin
Builder ENU Construction Location San Francisco, CA
QA/QC Rater Steve Mann Architecture Planning Hood Thomas Architects Mechanical Systems Designer
Constr. Type Timber Bldg. Function Single Family Floor Area 3361
Project Type Retrofit HERS Index LEED Rating
Energy Star Rating Heating Degree Days 2984 Cooling Degree Days 128
Units 1 Certification Type PHIUS+    
Exterior Wall Basement Walls (below grade): gypsum board, 2" EPS, 10" concrete Basement Double Stud Walls (above grade, on top of concrete walls): gypsum board, 3.5" framed wall, 3" gap, 5.5" framed wall w/ dense packed fiberglass, plywood Basement & 1st Floor Framed Walls: gypsum board, 1" EPS, 5.5" framed wall w/ dense packed fiberglass, plywood 2nd & 3rd Floor Framed Walls: gypsum board, 1" EPS, 3.5" framed wall w/ dense packed fiberglass, plywood
Floor Basement Slab: flooring, plywood, 4" concrete, 3" EPS 1st Floor Slab on Grade: flooring, plywood, 4" concrete, 2" EPS
Roof Upper Roof: gypsum board, 3.5" ceiling joists, 12" TJI rafters w/ 13.5" dense packed fiberglass & 2" closed-cell spray foam (CCSF), plywood Lower (Compact) Roofs: gypsum board, 9.5" TJI rafters w/ 9.5" closed-cell spray foam (CCSF), plywood Balcony Roofs: gypsum board, 5.5" rafters w/ 5.5" closed-cell spray foam (CCSF), plywood
Window Frame Munster Joinery/Klearwall EcoClad Skylights: Velux w/ Site Built Insulated Curb
Window Glazing
Entrance Door Custom, wood and polyiso, Far West Millwork
Ventilation Zehnder ComfoAir 550 HRV
Heating System 2.5 kW Electric Resistance Inline Duct Heat in Ventilation Air Stream
Submitter Graham Irwin
Air-tightness 0.58 ACH50
Cooling System Night flushing via HRV and/or windows
Construction Year
Additional Consultants
Additional Notes

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