LEED Platinum SIP Classroom Duluth MN

Location: Duluth, MN

Project Information

Project Type: Public Works
Manufacturer: Enercept
Design Professional:
Year Built: 2010


High Performance: Yes
HERS/EUI Index Score:
ACH50 - Blower Test Results: 0.47
CO2 lbs./sq.ft./year:

Awards/Certifications: LEED Platinum, Silver, DOE Zero Energy Ready Home

Structural Insulated Panels (SIPs) manufactured by Enercept play a major role in the design and success of the Bagley Classroom LEED Platinum Certification in this Net-Zero design.

The Bagley Outdoor Classroom UNIVERSITY OF MINNESOTA

The University of Minnesota Duluth (UMD) was presented with the need for a new classroom facility and has taken the opportunity to design and develop a Net-Zero solution in the Bagley Nature area of its campus.  They envisioned creating a home base for students in the form of a satellite classroom facility which takes full advantage of its natural environment and amenities.  Working with David Salmela, FAIA, of Salmela Architects, and Carly Coulson, AIA LEED AP and certified Passive House consultant, the university fully embraced the concepts of Net-Zero and Platinum LEED certification.  They accomplished their goal using proven materials such as structural insulated panels (SIPs), triple insulated glass and leading edge technology solutions for renewable energy.  The Bagley Classroom opened in June of 2010 and has received LEED Platinum certification.

Featured in the 2016 Zero Net Energy Buildings is the Sustainable Learning Centre in the University of Minnesota’s Bagley Outdoor  Classroom.

This Youtube link show the classroom Creating a Sustainable Campus.


Situated on a 55-acre open green space, the classroom boasts an impressive LEED Platinum rating, as well as achieving Passive House Standards, owing much of its energy performance to its SIP building envelope.

  • 6” SIP Walls (EPS)
  • 12” SIP Roof (EPS)
  • 90% Less Energy Demand 
  • (than standard buildings)

New Buildings Institute, Zero Net Energy Buildings, Passive House Standards, LEED Platinum

LEED Scores (NC Version 2 Platinum):

  • SITE (SS): 11 points awarded out of a possible 14
  • WATER (WE): 5 points awarded out of a possible 5
  • ENERGY (EA): 15 points awarded out of a possible 17
  • MATERIALS (MR): 9 points awarded out of a possible 13
  • INDOOR ENVIRONMENT (EQ): 15 points awarded out of a possible 15
  • INNOVATION (ID): 5 points awarded out of a possible 5

Energy Efficiency is at the core:

  • Airtight envelope: 0.47 Air Changes per hour (vs 5.0 for a typical home)
  • SIPs result in few thermal breaks, preventing heat loss and condensation
  • Reduce the energy needs

Owner University of Minnesota Board of Regents
Owner's representative UMD Facilities Management Department
Architect and interior designer Salmela Architects
Engineers Gausman & Moore (MEP);Meyer Borgman and Johnson (structural): Salo Engineering (civil)
Passive House consultant Carly Coulson
Envelope consultant Conservation Technologies
Commissioning agent Hallberg Engineering
General contractor and landscape UMD Facilities Management Department

Structural system Enercept, Inc. SIPs
Metal Rheinzink Salvaged Flatlock Zinc Tiles
Fiber composite Richlite/Intectural rainscreen & trim
Wood Custom FSC IPE screens
Windows Innotech/Trocal lnnoNova 7O.MS frames
Glass Cardinal Triple Pane #179 Lo.E Argon with XLedge spacers
Doors Woodmax custom wood Insulated core door
Low-slope roofing Firestone EcoWhite
Green roof LiveRoof CareFree Extreme Plant Mix
Concrete floor sealer Vexcon Starseal PS Clear
Paints and stains Benjamin Moore ECOSpec
Particleboard paneling Roseburg Skyblend FSC
Interior lighting LSl lndustries Abolite
Exterior Hadco LED wall mount; Luce Plan SKY LED PV bollard
Photovoltaics Sunny Boy Inverter; Sanyo HIT ZION PV panels
Plumbing Envirolet VF Vacuum Flush Composting Toilet System

Building automation system Siemens
Timber beams Duluth Timber Company reclaimed Douglas Fir heavy timbers
Insulation Benchmark Foam recycled content EPS; Bonded Logic Ultratouch
Vapor barrier film TenoArm
Waterproofing Building Envelope Innovations Wet-Flash PM 7000
Plumbing Sloane SOLIS sensor & solar powered faucet
Energy saving hand dryer TOTO Clean Dry
Energy monitoring system Square DPowerLogic
Ventilation System Venmar700i HRV


Affiliated Members

Enercept, Inc.

Watertown, SD


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