Smithgall High Performance SIP House Kilmarnock VA

Location: Kilmarnock, VA

Project Information

Project Type: Residential, > 3,000 sq. ft.
Manufacturer: Murus
Builder: Transitions Design-Build LLC
Design Professional: Peabody Architects
Year Built: 2019


High Performance: Yes
HERS/EUI Index Score: -4
ACH50 - Blower Test Results: 0.22
CO2 lbs./sq.ft./year:

Awards/Certifications: DOE Zero Energy Ready Home, ENERGY STAR Certified, EPA Indoor AirPLUS, Passive House

The house was designed to create a balance between maximizing views and passive daylighting along with deliberate shading control of solar gain. This is achieved with tuned roof overhangs, custom brise soleil, adjusted SHGC glazing specifications, and generous window proportions.

In hand with this, the ground floor plan was conceived such that the open floor plan Living area and the entrance Foyer and Stair Hall maximizes borrowed light. The integration of a hybridized steel moment frame with the SIP thermal enclosure and large glazing units, including a curtain wall system helps to highlight views of the exterior and connect the building to its waterfront setting. Energy Star Certified; US DOE ZERH (Zero Energy Ready Home); EPA Indoor AirPlus Qualified; Passive Haus Certification is currently be pursued and is fully expected.

To explore other Zero Energy Ready Homes, visit the Department of Energy’s Tour of Zero page.


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