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NYC Building Code

§ 1603.1.4 — § 1603.1.4

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What is NYC BC § 1603.1.4?

Quick Answer

This section requires the provision of specific roof snow load data, including flat-roof snow load, snow exposure factor, snow load importance factor, thermal factor, slope factor(s), drift surcharge load(s), and width of snow drift(s). Applies to building owners involved in roof design and construction.

General informational summary. Not legal advice for your situation. Consult an attorney before acting on any specific matter.

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1603.1.4 Roof snow load data.

BC § 1603.1.4

The ground snow load, Pg , shall be indicated. The following additional information shall also be provided, regardless of whether snow loads govern the design of the roof: 1. Flat-roof snow load, Pf .

2.Snow exposure factor, Ce .

3.Snow load importance factor, Is .

4.Thermal factor, Ct .

5.Slope factor(s), Cs .

6.Drift surcharge load(s), Pd , where the sum of Pd and Pf exceeds 20 psf (0.96 kN/m 2 ).

7.Width of snow drift(s), w.

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