State Codes
With What Code Must
My Window Comply?
Two web sites exist
that will direct commercial and residential users to the proper
energy code for your location. First, click on the Alliance
to Save Energy's Building Code Assistance Project web page:
Once
there, click on the United States map. Once that page is
open, select your state from the drop down menu in the middle
of that page. Read under the heading "Current State
Codes" to determine the proper code.
Next,
click on the Responsible Energy Code Alliances Web site.
Once
there, choose the proper IECC year that the BCAP
web site indicated from the icons shown. A US map will be on this page enabling you to click on your state. Next, A
PDF will open showing the relevant window and door prescriptive values: U-factors
and SHGC. Find your county. It will be listed in a
table on that state's PDF image. The county will correspond
to a zone. Match the zone to the proper columns on the U-factor
and SHGC table. This is the required code level!
Exceptions
Some
states do now reference IECC codes. If your state does
not list the code on the BCAP web page, read towards the bottom
of the web page under web links. These links will take you
to the state's code. Unfortunately, RECA nor any other authority
has extracted out the necessary codes for windows and walls.
You will have to read the code. Please call NFRC to ask
specific questions on your states codes.
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