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The following sections of the International Residential Code are amended as follows:

A. Table R302.2(1), Climatic and geographical design criteria, is amended to read as follows:

Roof snow load

25 lbs. per sq. ft.

Wind speed (Basic)

110 mph Figure R301.2(5)A Exposure Site specific basis per R301.2.1.4

Seismic Design Category

D2 Table R301.

Subject to damage from weathering


Frost line depth

12 inches


Slight to moderate


Slight to moderate

Winter design temperature

26 degrees Fahrenheit

Ice shield underlayment required


Flood hazards

Current FEMA map

Air freezing index

Not applicable

Mean annual temperature

50 degrees Fahrenheit

Manual J Design Criteria


322 Feet


47 Degrees North

Winter Heating

24 °F degrees Fahrenheit

Summer cooling

82 °F degrees Fahrenheit

Indoor design temperature

65 °F degrees Fahrenheit

Design temperature cooling

82 °F degrees Fahrenheit

B. Appendix V is amended as follows:

An approved automatic fire sprinkler system shall be installed in new townhouses in accordance with Appendix U per state amendment.

[Ord. 799 § 4, 2024; Ord. 747 § 4, 2020; Ord. 647 § 3, 2016; Ord. 641 § 6, 2016.]