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REScheck™ Zones
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REScheck™ was developed by Pacific Northwest National Labs (PNNL) as a fairly easy way to see if homes meet the Model Energy Code.
If you are unsure which county is in which zone click here |
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Current Status
Notes: The Tennessee Department of
Economic and Community Development Energy Division Current
Status Commercial:
ASHRAE 90A-1980 and 90B-1975 Both Residential and Commercial codes are mandatory statewide
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| The Model Energy
Code (MEC) sets standards for the energy efficiency of residential construction.
Three chapters of the code are of key importance:
Chapter 4 describes the acceptable rules and procedures for performing an energy simulation of a home using computer software Chapter 5, Residential Building Design by Component Performance Approach, shows the approved levels of energy efficiency for ceilings, walls, windows, doors, floors and other building components, as well as requirements for air sealing Chapter 6: Residential Building Design by Acceptable Practice translates Chapter 5’s requirements into real world construction methods. Example: The Model Energy Code relates energy efficiency requirements by the U-value, which is the inverse of an R-value. For example, a wall with an average R-value of R-20 has an average U-value of 1/20 or 0.05. In Nashville, Tennessee, the Model Energy Code (1993) requires components of Chapter 5 and Chapter 6:
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