New Residential Energy Code Toolkit
June 1, 2009 Minnesota adopted a new residential energy code. This page was created to help you understand the new energy code, provide summaries of the energy code changes, tools and a place to ask questions.
On this page you will find:
The Minnesota Residential Energy Code does not specifically allow contractors to use interior draintile in a gravel bed with a sand base as a subfloor preparation for a passive radon system. BAM created this technical document so you can submit this method as an alternate to AF103.2, #3 to a local building official.
This alternate method is supported by both the Environmental Protection Agency's Building Radon Out document and ASTM E 1465-07a: Standard Practice for Radon Control for the Design and Construction of New Low-Rise Residential Buildings.
Since this is an alternate method, contractors are required to get PRIOR APPROVAL from each and every building inspection department BEFORE CONSTRUCTION. The alternate code language can be found in appendix 1 of this document. The entire document will help a local building official understand the technical arguments for why the sand/interior draintile option is an acceptable alternate to the current code option of using a sand base and geotextile mat material.
Ask a question and your answer will be posted below.
Q: Who can install a passive or active radon system?
Q: Are passive radon systems required for additions?
Q: Does a cap block meet the intent of a "continuous course of solid masonry" that "prevents passage of air from the interior of the wall into the living space" as required by section AF103.4.5?
Q: Can Form-A-Drain be used to meet the new radon requirements?
Download The Complete Field Guide To The New Energy Code With 27 Illustrations
The new BAM Member Guide: Field Guide to the Residential Energy Code Including Radon Requirements explains the new code from start to finish. The Guide is made possible by a grant from the U.S. Department of Energy and the Minnesota Department of Commerce. You can download the free guide as one document or in parts:
If your computer connection is slow, download parts of the Guide:
Part 1: Guide Text
Part 2: Illustrations #1-5 (Climate map, R-5 Foundation Trade-off, Sunrooms, R-Values, Building Certificate)
Part 3: Illustrations #6-19 (Foundation Insulation Options)
Part 4: Illustrations #20-23 (Remodelers Checklist & Townhome Diagrams)
Part 5: Illustrations #24 & 25 (Mechanical Ventilation)
Part 6: Illustrations #26 & 27 (Radon Systems)
The new energy code requires builders to post a Building Certificate in a "permanently visible location inside the building." BAM has created a one-page form that meets all of the requirements of section N1101.8 of the residential energy code. These resources were made possible by a grant from the U.S. Department of Energy and the Minnesota Department of Commerce.
Download an Excel version you can customize with your logo and save to your computer
Download a PDF version you can print and fill out by hand.
Email BAM a comment or question about this form.
BAM Member Guide: Top 20 Changes To The Residential Energy Code