Mich. Admin. Code R. 408.31060e

Current through Vol. 24-19, November 1, 2024
Section R. 408.31060e - Climate Zones

Rule 1060e. Section 301.1 and Tables 301.1 and 301.3(2) of the code are amended and Figure 301.1a is added to the code to read as follows:

301.1 General. Climate zones from figures 301.1, 301.1a or table 301.1 shall be used in determining the applicable requirements of this code.

Table 301.1

Climate Zones by County

Zones
5A 6A 7
Allegan Alcona Baraga
Barry Alger Chippewa
Bay Alpena Gogebic
Berrien Antrim Houghton
Branch Arenac Iron
Calhoun Benzie Keweenaw
Cass Charlevoix Luce
Clinton Cheboygan Mackinac
Eaton Clare Ontonagon
Genesee Crawford Schoolcraft
Gratiot Delta
Hillsdale Dickinson
Ingham Emmet
Ionia Gladwin
Jackson Grand Traverse
Kalamazoo Huron
Kent Iosco
Lapeer Isabella
Lenawee Kalkaska
Livingston Lake
Macomb Leelanau
Midland Manistee
Monroe Marquette
Montcalm Mason
Muskegon Mecosta
Oakland Menominee
Ottawa Missaukee
Saginaw Montmorency
Shiawassee Newaygo
St. Clair Oceana
St. Joseph Ogemaw
Tuscola Osceola
Van Buren Oscoda
Washtenaw Otsego
Wayne Presque Isle
Roscommon
Smiilac
Wexford

Key: A - Moist. Absence of moisture designation indicates moisture regime is irrelevant.

Table 301.3(2)

Climate Zone Definitions

Zone Number Thermal Criteria
IP Units SI Units
5A 5400 < HDD65oF[LESS THAN EQUAL TO]7200 3000 < HDD18oC [LESS THAN EQUAL TO] 4000
6A 7200 < HDD65oF[LESS THAN EQUAL TO]9000 4000 < HDD18oC [LESS THAN EQUAL TO] 5000
7 9000< HDD65 oF[LESS THAN EQUAL TO]12600 5000 < HDD18oC [LESS THAN EQUAL TO] 7000

For SI:oC = [(oF)-32]/1.8

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Mich. Admin. Code R. 408.31060e

2010 AACS
An obvious error in R 408.31060e was corrected at the request of the promulgating agency, pursuant to Section 56 of 1969 PA 306, as amended by 2000 PA 262, MCL 24.256. The rule containing the error was published in Michigan Register, 2010 MR 21. The memorandum requesting the correction was published in Michigan Register, 2011 MR 5