Chatham County, GA Roof Snow Load - 0 psf

How much snow is too much for a roof in Chatham County, GA?

Picture it, not just weigh it: 0 in. if it's fresh powder, 0 in. once it settles, or a mere 0 in. if it's ice. This county’s ground snow load maps to zero - snow load is not a driver of roof design here.

Chatham County, GA: quick facts

• Design roof snow load0 psf
• Ground snow load, ASCE 7 map0 psf
• National rank#2,530 of 2,758
• Georgia rank#99 of 159
• Population307,336
• Annual snowfall, NOAA normal0 in.
• FIPS13051

How Chatham County compares

0 psf ranks #2,530 of 2,758 US counties with a mapped snow load (top 92%) - and #99 of 159 in Georgia. 3.6 psf is Georgia's typical county figure - Chatham County comes in 3.6 psf under it.

Population 307,336 (FIPS 13051), roughly 31.9804°N 81.0852°W. The 0 psf ground snow load ASCE 7-22 maps here becomes 0 psf once the code's own design factors are applied.

Typical snowfall in Chatham County, GA

NOAA's 30-year normal for Chatham County: 0 in. of snow a year, from the SAVANNAH INTL AP, GA US station. (fresh vs. packed vs. ice explains why.)

What this Chatham County figure assumes

This is a county-level reference figure for a typical heated home built to Risk Category II (ordinary residential), on a partially exposed lot - the assumptions ASCE 7-22 itself treats as the default case. A steeper roof, a fully exposed hilltop lot, an unheated structure, or a higher risk category all change the actual number.

Chatham County's permit office wants an address-specific figure, not this county average - the ASCE 7 Hazard Tool is free, takes under a minute, and outputs a PDF most reviewers accept. (How this figure is calculated.)