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- Commissioning-Large Buildings
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- Homes-New Construction
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Energy Conservation... In Your Home
New Construction
Building Codes

All new buildings constructed in Montana both residential and commercial must comply with the Montana energy code.
Residential
Montana homebuyers appreciate the comfort and warmth of well-designed, energy–efficient houses. When building your new home, it’s good to think long term. An investment in better quality during construction will improve the homes efficiency and save money in the long run. Pay close attention to items that will be difficult to upgrade in the future such as windows, insulation in walls, ceilings and basements. Make sure that the heating and cooling system is designed, installed, sealed and insulated properly before the components are covered in walls and ceilings, and choose efficient ENERGY STAR certified heating and cooling equipment. For information about certified ENERGY STAR homes see North West ENERGY STAR homes. All new houses in Montana must meet the minimum requirements of the 2003 International Energy Conservation Code (2003 IECC) with Montana amendments. For a summary, see the Montana Residential Building Energy Code.
Commercial
The Administrative Rules of Montana (Title 24, Chapter 301.160) require that commercial buildings and residential buildings over three stories must comply with the 2003 IECC or ASHRAE/IESNA Standard 90.1-2001. This code regulates minimum requirements for insulation levels, lighting, mechanical, and service water heating equipment. For a summary see the Commercial Building Energy Code.


