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Energy Code & Related Resources
Current Building Code
Effective January 14, 2019 the City of Fort Collins adopted the 2018 International body of codes & amendments, including the 2018 International Energy Conservation Code (IECC). For the complete codes, visit Codes & Standards.
Residential Energy Code Resources
Performance Path to Compliance - Simulated Performance Alternative (SPA)
Requirements for the Simulated Performance Alternative are detailed within The City of Fort Collins Residential New Construction Simulated Performance Alternative (SPA) Guide: Residential New Construction SPA Guide
- Residential Air Tightness Testing (Blower Door)
Residential Air Tightness Testing
New attached and detached single family dwellings are required to submit a passing multi-point air tightness test prior to issuance of C.O..
- Residential Mechanical Systems
Residential Mechanical Systems
Residential new construction mechanical systems are required to submit either engineered stamped mechanical plans or the Residential Mechanical Systems Design Submittal Form below. This 4 page form was effective as of May 14, 2013, and is required for new residential construction submittals by qualified agencies. This form must be accompanied by a Manual J, S, and D designed using the 'Manual J Design Criteria' found in the IRC code amendments Climatic & Geographic Design Criteria Table R301.2(1), and/or below.
All new construction mechanical systems must test, and submit the completed Residential Mechanical Systems Performance Report below prior to issuance of C.O..
Mechanical Performance Testing
Commercial Energy Code Resources
UA approach to Commercial Compliance
Commercial compliance using COMcheck
It is the responsibility of the party using COMcheck to use the most current version of the software. This insures that any updates made within the software are accounted for in your energy model. Either the most current desktop version of COMcheck or COMcheck-Web should be used.
- Commercial Building Air Tightness Testing
Commercial Building Air Tightness Testing
All new construction, including commercial buildings, are required to pass a building air tightness test. Testing requirement by building type can be found in the document Air Tightness Testing Different Building Types found further down the page under 'Additional Resources → Building Envelope'. Documentation and reporting of test results is required and must be submitted as part of the final report pack prior to issuance of the C.O..
- Commercial Building Commissioning
Commercial Building Commissioning
All new construction occupied buildings and/or first time tenant finishes with a floor area greater than 15,000 sq ft shall perform commissioning and complete a commissioning report. This commissioning report is to be made available to the building department prior to C.O. upon request.
Multi-Family Energy Code Resources
- Multi-Family Air Tightness Testing
Multi-Family Air Tightness Testing
Multi-Family dwelling units are required to be tested for air tightness, more specifically tested for air tightness from the exterior and from one dwelling unit to the next. Unit sampling is allowed for multi-family buildings.
- Multi-Family Mechanical Systems Performance Testing
Multi-Family Mechanical Systems Performance Testing
All new construction mechanical systems must test, complete and submit the Residential Mechanical Systems Performance Report found in the 'Residential Energy Code Resources' above prior to issuance of C.O.. Compiling test results from all of the dwelling units in a building onto one form is permitted. This form is available below. Sampling of mechanical systems performance testing is not allowed and all dwelling units must be tested.
A Guide to Exterior Wall Air Barrier Above Ceiling Plane (commonly missed detail)