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No. 1110 Project Nova Passiv Haus Status Certified
Lead CPHC Peter Henry
Builder Dobson Building & Remodeling Location Falls Church, VA
QA/QC Rater Architecture Planning Peter Henry Architecture, Peter Henry Mechanical Systems Designer Krafft Heating & Airconditioning, Jay Krafft
Constr. Type Timber Bldg. Function Single Family Floor Area 2502
Project Type New Construction HERS Index 37 LEED Rating
Energy Star Rating Heating Degree Days 4739 Cooling Degree Days
Units 1 Certification Type PHIUS+ Certification Date August 7, 2013
Exterior Wall Double Stud wall system with Cellulose insulation in cavity and 2.5" EPS Outsoulation. Cavity thickness 9 1/4" 2x6 first floor 2x4 second floor studs @ 24" o.c. Zip System sheathing at face of exterior stud. Gypsum Board interior finish.
Floor 4" Concrete Slab over 6" EPS foam & Stego Wrap air barrier taped to foundation walls over gravel. Footings continuously insulated with 2" EPS foam
Roof Airtight insulated ceiling with Zip System taped over service chase and trusses with bottom chord 2' deep filled with cellulose insulation covered by wind tight layer. Roof is a rain hat.
Window Frame Thermotech Fiberglass
Window Glazing Thermotech Fiberglass tripple pane w/ NetGain on North, East & West and NetGain+ on South
Entrance Door Thermotech Fiberglass Decorative Door
Heating System 2 Fujitsu Ducted mini split systems 18,000 btu for first & second floor and 9,000 but for basement. Systems provide heating, cooling, dehumidification & fan only modes.
Submitter Peter Henry
Air-tightness .58 ACH50
Cooling System See Heating System
Additional Consultants Energy Masters, Richard Lensis
Additional Notes Submitted by Peter Henry Architecture

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