Ridge St

SAMSUNG

Another fabulous house from our friends at design/build firm, Latitude 38. Think Little contributed building envelope specs, energy modeling, HVAC design and building commissioning. This house has an amazingly low HERS score of 39…and that’s without a PV system!

STATS:

Year built: 2013
Floor area: 2,081
HERS Index: 39
Certifications: EarthCraft Virginia

Air-tightness: 0.06 envelope leakage ratio (1.0 ACH50)
Walls: R-25, cellulose + 1″ EPS foam board
Ceiling: R-67, blown-in cellulose
Slab: R-8, 2″ EPS foam board
Foundation walls: R-21 ICF foundation
Windows: Pella 350 (U = 0.15-0.17, SHGC = 0.20-0.27)
Heating/cooling: Mitsubishi ducted heat pump (10 HSPF, 17.5 SEER)
Ventilation: Panasonic Whisper Green exhaust fan with passive air inlets
Water heating: AirTap heat pump water heater

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