SIP School Campus Hailey ID

Location: Hailey, ID

Project Information

Project Type: Commercial, Other Commercial
Manufacturer: Enercept
Builder: Lee Gilman
Design Professional: John Campbell Architect
Year Built: 2022


High Performance: No
HERS/EUI Index Score:
ACH50 - Blower Test Results:
CO2 lbs./sq.ft./year:

Awards/Certifications: Building Excellence Awards

BEA: 2022 Runner-Up Classic Commercial over 10,000 sq. ft.

This project is The Sage School, a private school for grades 6-12.

Alan Bernholtz,WindRiver Timber Frames, specified Enercept SIPs in their bid. Alan has been been enclosing his timber frames with Enercept SIPs since 2002.

SIP wall thickness: 5 5/8" EPS Core - both Barn and Studios
SIP roof thickness: 11 7/8" EPS Core - Barn; 9 5/8" Studios

Mr. Bernholtz believes that SIPs are the standard for timber frames. He added that they make a quick and energy-efficient enclosure.

The school desired concept was a western, early year design using timberframe construction. The buildings were also designed with the goal of energy efficiency. The barn features a massive 29' ridge skylight that extending 7' on either side of the slope to provide natural lighting.

HVAC system:
Electric Daikin heatpumps and ERV systems with WiFi control system.

Energy-saving materials and U-Values:
Rockwool, foam stem wall, subfloor and radon ground cover foamed to stem wall. Quaker City Line, thermally broken windows and doors; aluminum framed, commercial grade. U-values with double pain low E, high-altitude range .29- .35, foam sealed.

Energy-efficient products:
Lighting is LED with IR detected censors. Light-activated to control energy costs.
Studios have small, tankless electric water heaters (one per bathroom).
Energy-efficient appliances, including induction ovens.

Solar panels:
North American Black panel (SILfab 370) or greater.
Solar Edge inverter optimizer with WiFi controls and monitor power use by computer or cell phone.
Barn - 41,283 kWh per year; Studios - est. 21,000 kWh per year.

Sustainable materials:
Drought tolerant native grass (Sage grass short mix) makes up most of the lawn. Water-efficient turf grass was planted on the activity field. Landscape valve-controlled irrigation with weather sensor ground units and low flow head drop systems.
They use reclaimed water for irrigation and toilet fill systems from development-planned capture systems.

Additional comments:
The Sage School sits at the edge of a 1,200-acre conservation easement at Quigley Farm in Hailey.

Students have abundant access to wilderness, restoration projects, and open space. It is an independent school with a mission of fostering a sense of self, a sense of place, and a sense of community in its students. Their goal is to create an environment that honors adolescents and helps to build a thriving community. 

The Barn opened for occupancy in December 2022. It is used for classrooms, a state-of-the-art kitchen (science lab), offices, a library, and public space for events and student meals.
In addition to the four timber structures, three modular buildings were relocated from the original campus.

Bill Shaw (Lee Gilman Construction) says, "The school is a state-of-the-art property, and the member of the community, Lee Gilman, The subcontractors, and Sage School are very proud of the end project; any award achieved by the efforts would be welcome."


Affiliated Members

Enercept, Inc.

Watertown, SD


SIPA Website Sponsors