Table R301.2(1)
Climatic and Geographic Design Criteria

Climatic & Geographical Design Criteria
 Residential Code of New York State
For Central Chapter Counties
(Commercial buildings to be calculated in accordance with B1616.3)

For SI: 1 pound per square foot - 0.0479 kPa, 1 mile per hour - 0.447 rn/s.

a. Weathering may require a higher strength concrete or grade of masonry than necessary to satisfy the
structural requirements of this code. The weathering column shall be filled in with the weathering index
(i.e., "negligible," "moderate" or "severe") for concrete as determined from the Weathering Probability Map
[Figure R301.2(3)]. The grade of masonry units shall be determined from ASTM C 34, C 55, C 62, C 73, C 90,
C 129, C 145, C 216 or C 652.

b. The frost line depth may require deeper footings than indicated in Figure R403.1(l). The jurisdiction shall
fill in the frost line depth column with the minimum depth of footing below finish grade.

c. The jurisdiction shall fill in this part of the table to indicate the need for protection depending on whether
there has been a history of local subterranean termite damage.

d. The jurisdiction shall fill in this part of the table with the wind speed from the basic wind speed map
[FigureR301.2(4)]. Wind exposure category shall be determined on a site-specific basis in accordance
with Section R301.2.1.4.

e. The jurisdiction shall fill in this part of the table with the seismic design category determined from
Section R301.2.2.1.

f. The jurisdiction shall fill in this part of the table with (a) the date of the jurisdiction's entry into the
National Flood Insurance Program (date of adoption of the first code or ordinance for management of flood
hazard areas), (b) the date(s) of the currently effective FIRM and FBFM, or other flood hazard map adopted
by the community, as may be amended.

g. In accordance with Sectioris R905.2.7.1, R905.4.3.l, R905.5.3.1, R905.6.3.I, R905.7.3.1 and R905.8.3.1, where
there has been a history of local damage from the effects of ice damming, the jurisdiction shall fill in this part
of the table with "YES." Otherwise, the jurisdiction shall fill in this part of the table with "NO."

i. The ground snow loads to be used in determining the design snow loads for roofs are given in
Figure R301.2(5) for sites at elevations up to 1000 feet. Sites at elevations above 1000 feet shall have
their ground snow load increased from the mapped value by 2 psffor every 100 feet above 1000 feet.

Promoting the advancement of public safety in the Central New York region.