NetZero Ready SIP House Watertown WI

Location: Watertown, WI

Project Information

Project Type: Residential, < 3,000 sq. ft.
Manufacturer: Energy Panel Structures
Builder: Ultimate Construction
Design Professional:
Year Built: 2023


High Performance: Yes
HERS/EUI Index Score: 47
ACH50 - Blower Test Results: 0.63
CO2 lbs./sq.ft./year:

Building use: Residential Single Family Home

SIP benefits for this job: Customer wanted a NetZero Ready home

SIP wall thickness: 6-9/16 x 10« high

Benefits of using SIPs on this project. Did SIPs help save time, labor, construction costs, or energy? Yes, SIPs  panels did help with these. With the walls being 10' high, there was no blocking of seams and shear walls. Garage is 14' high, so we were able to use jumbo panels.

HVAC: Rheem R95TC 1001521MSA 100,000 BTU HE furnace with an ECM blower motor, 4 zone system with LL 1/2 exposure SIPS panels, 13 seer air conditioner.

Certifications: Focus on Energy

HERS Index: 47

Blower door test results (ACH50) 0.63

Describe any other energy-saving materials used in the building envelope other than SIPs. List U-values of windows used and the U or R-value of any insulation materials: LED lighting, piped for Tesla solar wall panels, spray foam top plate & ring joist, extra caulking = air tightness, electric fireplace.

Please list any energy-efficient products or design features, such as lighting, hot water heating, appliances, passive solar: All LED lighting, All Samsung appliances: smart dishwasher, Bespoke 4Door French door refrigerator, 36" gas cooktop & range hood, 30" microwave combo wall oven, smart washer & dryer.

Were any solar panels installed on the project? This house is ready for solar panels.

Any additional comments on the project: This house is in the country, with no surrounding trees. Efficiency of SIPs panels helps with heating and cooling. Next door neighbor is now interested in building a SIP home with us.

Affiliated Members

Energy Panel Structures, Inc.
Graettinger, IA
Ultimate Construction Inc

Cottage Grove, WI


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