Indiana Administrative Code › Title 675 - FIRE PREVENTION AND BUILDING SAFETY COMMISSION › Article 14 - ONE AND TWO FAMILY DWELLING CODE › Rule 4.4 - 2020 Indiana Residential Code › Section 4.4-5 - Table R301.2(1); climatic and geographical design criteria

Current through July 10, 2024
Authority: IC 22-13-2-2; IC 22-13-2-2.5; IC 22-13-2-13
Affected: IC 22-12; IC 22-13; IC 22-14; IC 22-15; IC
				  36-7
Sec. 5.
Delete TABLE R301.2(1) and the corresponding footnotes and
				  substitute to read as follows:
TABLE R301.2(1)
CLIMATIC AND GEOGRAPHIC DESIGN CRITERIA
No.
County
Wind Speeda (MPH)
Seismic Design Categoryb
Ground Snow (PSF)
Found-ationc
Winter Design Temp (°F)
Decay
Termite
Weatheringd
Ice Shield Underlayment Required
Air Freezing Index
Mean Annual Temp (°F)
01
Adams
115
A
20
36
1°
Slight to Moderate
Moderate to Heavy
Severe
Yes
[LESS THAN EQUAL TO] 1500
50.9°
02
Allen
115
A
20
36
1°
Slight to Moderate
Moderate to Heavy
Severe
Yes
2000
49.9°
03
Bartholomew
115
B
20
24
9°
Slight to Moderate
Moderate to Heavy
Severe
No
[LESS THAN EQUAL TO] 1500
53.1°
04
Benton
115
A
20
36
1°
Slight to Moderate
Moderate to Heavy
Severe
Yes
2000
49.1°
05
Blackford
115
A
20
30
2°
Slight to Moderate
Moderate to Heavy
Severe
No
[LESS THAN EQUAL TO] 1500
51.4°
06
Boone
115
B
20
30
2°
Slight to Moderate
Moderate to Heavy
Severe
No
[LESS THAN EQUAL TO] 1500
52.3°
07
Brown
115
B
20
24
9°
Slight to Moderate
Moderate to Heavy
Severe
No
[LESS THAN EQUAL TO] 1500
53.1°
08
Carroll
115
A
20
36
1°
Slight to Moderate
Moderate to Heavy
Severe
Yes
[LESS THAN EQUAL TO] 1500
51.7°
09
Cass
115
A
20
36
1°
Slight to Moderate
Moderate to Heavy
Severe
Yes
2000
50.3°
10
Clark
115
B
20
24
9°
Slight to Moderate
Moderate to Heavy
Severe
No
[LESS THAN EQUAL TO] 1500
54.7°
11
Clay
115
B
20
24
9°
Slight to Moderate
Moderate to Heavy
Severe
No
[LESS THAN EQUAL TO] 1500
52.1°
12
Clinton
115
A
20
30
2°
Slight to
Moderate
Severe
No
[LESS THAN EQUAL TO] 1500
50.7°
Moderate
to Heavy
13
Crawford
115
B
20
24
9°
Slight to Moderate
Moderate to Heavy
Severe
No
[LESS THAN EQUAL TO] 1500
54.7°
14
Daviess
115
C
20
24
9°
Slight to Moderate
Moderate to Heavy
Severe
No
[LESS THAN EQUAL TO] 1500
56.1°
15
Dearborn
115
A
20
24
9°
Slight to Moderate
Moderate to Heavy
Severe
No
[LESS THAN EQUAL TO] 1500
50.5°
16
Decatur
115
B
20
24
9°
Slight to Moderate
Moderate to Heavy
Severe
No
[LESS THAN EQUAL TO] 1500
52.4°
17
DeKalb
115
A
30
36
1°
Slight to Moderate
Moderate to Heavy
Severe
Yes
[LESS THAN EQUAL TO] 1500
50.0°
18
Delaware
115
A
20
30
2°
Slight to Moderate
Moderate to Heavy
Severe
No
[LESS THAN EQUAL TO] 1500
50.8°
19
Dubois
115
C
20
24
9°
Slight to Moderate
Moderate to Heavy
Severe
No
[LESS THAN EQUAL TO] 1500
53.9°
20
Elkhart
115
A
30
36
1°
Slight to Moderate
Moderate to Heavy
Severe
Yes
[LESS THAN EQUAL TO] 1500
50.5°
21
Fayette
115
A
20
30
2°
Slight to Moderate
Moderate to Heavy
Severe
No
[LESS THAN EQUAL TO] 1500
51.5°
22
Floyd
115
B
20
24
9°
Slight to Moderate
Moderate to Heavy
Severe
No
[LESS THAN EQUAL TO] 1500
54.7°
23
Fountain
115
B
20
30
2°
Slight to Moderate
Moderate to Heavy
Severe
No
2000
51.2°
24
Franklin
115
A
20
24
9°
Slight to Moderate
Moderate to Heavy
Severe
No
[LESS THAN EQUAL TO] 1500
51.8°
25
Fulton
115
A
30
36
1°
Slight to Moderate
Moderate to Heavy
Severe
Yes
2000
49.3°
26
Gibson
115
C
20
24
9°
Slight to Moderate
Moderate to Heavy
Severe
No
[LESS THAN EQUAL TO] 1500
55.2°
27
Grant
115
A
20
30
2°
Slight to Moderate
Moderate to Heavy
Severe
No
[LESS THAN EQUAL TO] 1500
50.3°
28
Greene
115
C
20
24
9°
Slight to Moderate
Moderate to Heavy
Severe
No
[LESS THAN EQUAL TO] 1500
52.9°
29
Hamilton
115
A
20
30
2°
Slight to Moderate
Moderate to Heavy
Severe
No
[LESS THAN EQUAL TO] 1500
51.5°
30
Hancock
115
A
20
30
2°
Slight to Moderate
Moderate to Heavy
Severe
No
[LESS THAN EQUAL TO] 1500
51.6°
31
Harrison
115
B
20
24
9°
Slight to Moderate
Moderate to Heavy
Severe
No
[LESS THAN EQUAL TO] 1500
54.7°
32
Hendricks
115
B
20
30
2°
Slight to Moderate
Moderate to Heavy
Severe
No
[LESS THAN EQUAL TO] 1500
52.3°
33
Henry
115
A
20
30
2°
Slight to Moderate
Moderate to Heavy
Severe
No
[LESS THAN EQUAL TO] 1500
49.9°
34
Howard
115
A
20
30
2°
Slight to Moderate
Moderate to Heavy
Severe
No
2000
49.6°
35
Huntington
115
A
20
36
1°
Slight to Moderate
Moderate to Heavy
Severe
Yes
[LESS THAN EQUAL TO] 1500
50.4°
36
Jackson
115
B
20
24
9°
Slight to Moderate
Moderate to Heavy
Severe
No
[LESS THAN EQUAL TO] 1500
52.5°
37
Jasper
115
A
30
36
1°
Slight to Moderate
Moderate to Heavy
Severe
Yes
2000
49.6°
38
Jay
115
B
20
30
2°
Slight to Moderate
Moderate to Heavy
Severe
No
[LESS THAN EQUAL TO] 1500
49.7°
39
Jefferson
115
B
20
24
9°
Slight to Moderate
Moderate to Heavy
Severe
No
[LESS THAN EQUAL TO] 1500
54.7°
40
Jennings
115
B
20
24
9°
Slight to Moderate
Moderate to Heavy
Severe
No
[LESS THAN EQUAL TO] 1500
54.3°
41
Johnson
115
B
20
30
2°
Slight to
Moderate
Severe
No
[LESS THAN EQUAL TO] 1500
52.0°
Moderate
to Heavy
42
Knox
115
C
20
24
9°
Slight to Moderate
Moderate to Heavy
Severe
No
[LESS THAN EQUAL TO] 1500
53.4°
43
Kosciusko
115
A
30
36
1°
Slight to Moderate
Moderate to Heavy
Severe
Yes
2000
49.0°
44
LaGrange
115
A
30
36
1°
Slight to Moderate
Moderate to Heavy
Severe
Yes
[LESS THAN EQUAL TO] 1500
47.9°
45
Lake
115
A
30
36
1°
Slight to Moderate
Moderate to Heavy
Severe
Yes
2000
49.0°
46
LaPorte
115
A
30
36
1°
Slight to Moderate
Moderate to Heavy
Severe
Yes
2000
49.7°
47
Lawrence
115
B
20
24
9°
Slight to Moderate
Moderate to Heavy
Severe
No
[LESS THAN EQUAL TO] 1500
52.6°
48
Madison
115
A
20
30
2°
Slight to Moderate
Moderate to Heavy
Severe
No
[LESS THAN EQUAL TO] 1500
50.8°
49
Marion
115
B
20
30
2°
Slight to Moderate
Moderate to Heavy
Severe
No
[LESS THAN EQUAL TO] 1500
51.8°
50
Marshall
115
A
30
36
1°
Slight to Moderate
Moderate to Heavy
Severe
Yes
2000
50.0°
51
Martin
115
C
20
24
9°
Slight to Moderate
Moderate to Heavy
Severe
No
[LESS THAN EQUAL TO] 1500
54.2°
52
Miami
115
A
20
36
1°
Slight to Moderate
Moderate to Heavy
Severe
Yes
2000
49.4°
53
Monroe
115
C
20
24
9°
Slight to Moderate
Moderate to Heavy
Severe
No
[LESS THAN EQUAL TO] 1500
53.1°
54
Montgomery
115
B
20
30
2°
Slight to Moderate
Moderate to Heavy
Severe
No
[LESS THAN EQUAL TO] 1500
50.1°
55
Morgan
115
B
20
30
2°
Slight to Moderate
Moderate to Heavy
Severe
No
[LESS THAN EQUAL TO] 1500
51.5°
56
Newton
115
A
30
36
1°
Slight to Moderate
Moderate to Heavy
Severe
Yes
2000
50.2°
57
Noble
115
A
30
36
1°
Slight to Moderate
Moderate to Heavy
Severe
Yes
[LESS THAN EQUAL TO] 1500
49.0°
58
Ohio
115
A
20
24
9°
Slight to Moderate
Moderate to Heavy
Severe
No
[LESS THAN EQUAL TO] 1500
53.0°
59
Orange
115
B
20
24
9°
Slight to Moderate
Moderate to Heavy
Severe
No
[LESS THAN EQUAL TO] 1500
53.0°
60
Owen
115
B
20
24
9°
Slight to Moderate
Moderate to Heavy
Severe
No
[LESS THAN EQUAL TO] 1500
50.1°
61
Parke
115
B
20
30
2°
Slight to Moderate
Moderate to Heavy
Severe
No
[LESS THAN EQUAL TO] 1500
53.9°
62
Perry
115
C
20
24
9°
Slight to Moderate
Moderate to Heavy
Severe
No
[LESS THAN EQUAL TO] 1500
55.8°
63
Pike
115
C
20
24
9°
Slight to Moderate
Moderate to Heavy
Severe
No
[LESS THAN EQUAL TO] 1500
54.8°
64
Porter
115
A
30
36
1°
Slight to Moderate
Moderate to Heavy
Severe
Yes
2000
49.6°
65
Posey
115
C
20
24
9°
Slight to Moderate
Moderate to Heavy
Severe
No
[LESS THAN EQUAL TO] 1500
55.4°
66
Pulaski
115
A
30
36
1°
Slight to Moderate
Moderate to Heavy
Severe
Yes
2000
49.7°
67
Putnam
115
B
20
30
2°
Slight to Moderate
Moderate to Heavy
Severe
No
[LESS THAN EQUAL TO] 1500
52.6°
68
Randolph
115
B
20
30
2°
Slight to Moderate
Moderate to Heavy
Severe
No
[LESS THAN EQUAL TO] 1500
49.9°
69
Ripley
115
A
20
24
9°
Slight to Moderate
Moderate to Heavy
Severe
No
[LESS THAN EQUAL TO] 1500
54.5°
70
Rush
115
A
20
30
2°
Slight to
Moderate
Severe
No
[LESS THAN EQUAL TO] 1500
51.2°
Moderate
to Heavy
71
St. Joseph
115
A
30
36
1°
Slight to Moderate
Moderate to Heavy
Severe
Yes
[LESS THAN EQUAL TO] 1500
49.1°
72
Scott
115
B
20
24
9°
Slight to Moderate
Moderate to Heavy
Severe
No
[LESS THAN EQUAL TO] 1500
53.9°
73
Shelby
115
B
20
30
2°
Slight to Moderate
Moderate to Heavy
Severe
No
[LESS THAN EQUAL TO] 1500
52.6°
74
Spencer
115
C
20
24
9°
Slight to Moderate
Moderate to Heavy
Severe
No
[LESS THAN EQUAL TO] 1500
56.2°
75
Starke
115
A
30
36
1°
Slight to Moderate
Moderate to Heavy
Severe
Yes
2000
49.7°
76
Steuben
115
A
30
36
1°
Slight to Moderate
Moderate to Heavy
Severe
Yes
2000
47.3°
77
Sullivan
115
C
20
24
9°
Slight to Moderate
Moderate to Heavy
Severe
No
[LESS THAN EQUAL TO] 1500
52.7°
78
Switzerland
115
A
20
24
9°
Slight to Moderate
Moderate to Heavy
Severe
No
[LESS THAN EQUAL TO] 1500
55.7°
79
Tippecanoe
115
A
20
30
2°
Slight to Moderate
Moderate to Heavy
Severe
No
2000
50.9°
80
Tipton
115
A
20
30
2°
Slight to Moderate
Moderate to Heavy
Severe
No
2000
49.2°
81
Union
115
A
20
30
2°
Slight to Moderate
Moderate to Heavy
Severe
No
[LESS THAN EQUAL TO] 1500
51.5°
82
Vanderburgh
115
C
20
24
9°
Slight to Moderate
Moderate to Heavy
Severe
No
[LESS THAN EQUAL TO] 1500
57.0°
83
Vermillion
115
B
20
30
2°
Slight to Moderate
Moderate to Heavy
Severe
No
[LESS THAN EQUAL TO] 1500
50.8°
84
Vigo
115
B
20
24
9°
Slight to Moderate
Moderate to Heavy
Severe
No
[LESS THAN EQUAL TO] 1500
53.1°
85
Wabash
115
A
20
36
1°
Slight to Moderate
Moderate to Heavy
Severe
Yes
2000
49.0°
86
Warren
115
B
20
30
2°
Slight to Moderate
Moderate to Heavy
Severe
No
2000
51.0°
87
Warrick
115
C
20
24
9°
Slight to Moderate
Moderate to Heavy
Severe
No
[LESS THAN EQUAL TO] 1500
56.2°
88
Washington
115
B
20
24
9°
Slight to Moderate
Moderate to Heavy
Severe
No
[LESS THAN EQUAL TO] 1500
54.5°
89
Wayne
115
A
20
30
2°
Slight to Moderate
Moderate to Heavy
Severe
No
[LESS THAN EQUAL TO] 1500
49.9°
90
Wells
115
A
20
36
1°
Slight to Moderate
Moderate to Heavy
Severe
Yes
[LESS THAN EQUAL TO] 1500
49.9°
91
White
115
A
20
36
1°
Slight to Moderate
Moderate to Heavy
Severe
Yes
2000
50.3°
92
Whitley
115
A
20
36
1°
Slight to Moderate
Moderate to Heavy
Severe
Yes
[LESS THAN EQUAL TO] 1500
48.8°
a. Wind exposure shall be determined on a
							 site-specific basis in accordance with SECTION R301.2.1.4.
b. Seismic design category shall be
							 assigned according to this TABLE or SECTION R301.2.2.1.1.
c. Foundation is the minimum depth, in
							 inches, from the finish grade to the bottom of the footing.
d. The grade of masonry units shall be
							 determined from ASTM C34, C55, C62, C73, C90, C129, C145, C216, or C652.