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No. 1085 Project Gaddy Passive House Status Pre-certified
Lead CPHC Michael Hindle
Builder Maryland Custom Builders Inc. Location Clarksville, MD
QA/QC Rater Architecture Planning Miche Booz Architect Mechanical Systems Designer John Essig
Constr. Type Timber Bldg. Function Single Family Floor Area 1717
Project Type New Construction HERS Index LEED Rating
Energy Star Rating Heating Degree Days 4953 Cooling Degree Days 1220
Units 1 Certification Type PHIUS+ Certification Date May 22, 2012
Exterior Wall 2x6 structural wall with high density blown-in fiberglass, 1/2" plywood taped sheathing, 11 7/8" TJI with high density blown-in fiberglass, 1/2" densglass gold sheathing, 2" air space, 4" block below, 3/4" air space, galvalume corrugated siding above.
Floor 4" slab with 8" EPS Geofoam, thermal break, and insulated footings with foamglas.
Roof 16" TJI with high density blown-in fiberglass and 7.25" external mineral wool.
Window Frame Thermotech: 0.17 U-value (picture window), 0.21 U-value (casement/awning window)
Window Glazing Thermotech: 0.33 SHGC, 0.12 U-value (East-North-West casement/awning) 0.38 SHGC, 0.12 U-value (East-North-West picture) 0.67 SHGC, 0.16 U-value (South casement/awning) 0.66 SHGC, 0.16 U-value (South picture)
Entrance Door Thermotech: 0.29 SHGC, 0.20 glazing U-value, 0.30 framing U-value
Ventilation Zendher ComfoAir 350
Heating System Two Mitsubishi Mr slim split-ductless heat pump
Submitter Michael Hindle
Air-tightness
Cooling System Two 9000 Btu/hr Mitsubishi mini-splits, variable speed - one wall mounted in open plan living space and one ducted into bedrooms.
Additional Consultants Janice Romanosky, Pando Alliance (LEED consulting), Peter Doo Living Building Challenge
Additional Notes Targeted for LEED platinum, zero site energy, zero primary energy, Living Building Challenge PE offset by PV array - 38.2 kBtu/sf/yr

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