Residential Construction Energy Code Requirements


Planning to purchase or build a new home in Montana? 

Montana has a state-wide energy code that governs all new home construction


Many new homes built in the state are reviewed by a building code department for code compliance. But all homes must meet state standards for such things as insulation levels, thermal ratings for windows, and heating appliance performance.

Use the Energy Code Guide to help ensure your new home is comfortable, healthy, and energy code compliant.

These codes are for the homeowner's protection. So talk with your builder and look for the blue Energy Component Label on the electrical panel of your recently completed new home.

The Energy Code Compliance Newsletter offers best practices for code officials, builders, and people in the marketplace for new residential buildings in Montana.

The Montana Residential Energy Code Handbook is guide to complying with the statewide energy code.

What the energy code means for you:

Are you buying or building a new home or remodeling your current home?

Are you a builder or contractor?

Are you an architect or building code official



Frequently Asked Questions

Energy Code Summary

Local Government Code Programs 

Blower Door and/or Duct Tightness Test Professionals

Energy Code Training


New in Energy

Energy Code Compliance Newsletter, Spring 2017

This newsletter assists code officials and people in the marketplace to better understand and comply with the residential energy code.

Blueprint for Montana's Energy Future released by Gov. Steve Bullock

The sweeping plan highlights energy efficiency, the potential for wind and solar, and advocates for innovative solutions to curb pollution from coal-fired plants. View Gov. Bullock's plan here.

A Citizen's Guide to Montana Energy Law

An overview of laws related to energy generation, transmission, and consumption in Montana

2016 Alternative Energy Revolving Loan Program Outcomes Report now available

Energy Code Website

To assist both building contractors and home buyers, Montana DEQ has developed a website that specifically addresses Montana's Energy Code requirements, such as minimum insulation, sealing, blower door testing, and self-certification. 

S.M.A.R.T. Schools Website

Governor Steve Bullock first unveiled the Montana S-M-A-R-T (Saving Money And Resources Today) Schools Challenge in the 2014-2015 school year. SMART Schools 2015-2016 wrapped up  this past May with a Symposium at the Capitol building on May 19th. The Challenge will continue for the 2016/2017 school year with the application period beginning in August.