Retrofit Installer Technician: Building Shell

Dates: October 2-5, 2023
Location: Montana Weatherization Training Center - Bozeman
Cost:  $725.00

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Date Day Time
10/02/2023Monday1 PM to 5 PM
10/03/2023Tuesday8:30 AM to 5 PM
10/04/2023Wednesday8:30 AM to 5 PM
10/05/2023Thursday8:30 AM to 12 N

The Retrofit Installer Technician: Building Shell is an entry-level course that provides an overview of weatherization measures and standards, as well as residential building performance practices including building science basics and the house as a system. The course also covers basic health and safety issues, heating systems and mechanical codes.

This course is the first in a two-part series that covers pressure diagnostics, air-sealing, insulation installs, moisture management, window and door installation, roof vent installation and more.

The course follows the Department of Energy's standardized curriculum for Weatherization Installer/Technician Fundamentals and has been modified to be consistent with the National Renewable Energy Laboratory's (NREL) Job Task Analysis for the Retrofit Installer Technician.

Upon completion of the class, students will be familiar with the tasks performed by a Retrofit Installer Technician and possess the knowledge, skills and abilities required to do these tasks.

The structure of the course includes lecture, discuss and practical demonstrations in lab situations.

Montana Weatherization Network members may take this course at no cost. Use the MT WAP Registration option to register with a $0 fee.

For questions, contact the Training Center at, or 406-586-0070.

Please visit the Montana Weatherization Training Center's website at
Fee:  $725.00

Fee Breakdown

Course Fee (Basic)Registration Fee$ 725.00
Course Fee (Alternate)MT WAP Registration$ 0.00

Montana Weatherization Training Center - Bozeman

751 Osterman Drive
Suite 101
Bozeman, MT 59715

Aaron Mugaas

Aaron brings deep and relevant experience to the team, with decades of service to the weatherization industry as both a crew member and auditor. He’s also spent time in private industry as a house builder and home inspector. Aaron’s training includes degrees in Biology, and study in Land Resources and Environmental Sciences. His focus at the Training Center is on health and safety, building science, hands-on training of practical skills.

Brian Nickisch

Growing up in Eastern Montana, Brian has experienced every sort of extreme weather event. Witnessing the impact of weather events on communities Brian has lived in has helped develop a passion for being able to help those impacted most. Through acquiring a teaching degree from Montana State University and a master's degree in environmental science from the University of Nevada, Reno, Brian has sought out to improve lives through education and promoting energy efficiency.

In addition to his formal education, Brian's experience teaching high school science, installing solar arrays, and conducting home energy assessments have given him crucial skills that he’s excited to contribute to the Training Center and the weatherization network.

Nick Thomas

Growing up in the Gallatin Valley has offered Nick years of demolition, renovation and building experience as well as a keen knowledge of different building structures and ways of protecting homes from harsh Montana climates. He brings several years of weatherization field experience to the Training Center after working for the HRDC energy assistance program. His standardized work specifications (SWS) and code compliance knowledge shapes his teaching focus toward workplace safety and crew efficiency.
Date Day Time Location
10/02/2023Monday1 PM to 5 PM Montana Weatherization Training Center - Bozeman
10/03/2023Tuesday8:30 AM to 5 PM Montana Weatherization Training Center - Bozeman
10/04/2023Wednesday8:30 AM to 5 PM Montana Weatherization Training Center - Bozeman
10/05/2023Thursday8:30 AM to 12 N Montana Weatherization Training Center - Bozeman

This course has 24 contact hours and can qualify as 24 continuing education units (CEU) toward Home Energy.