ZIP Code 30045
Gwinnett County, Georgia — Zcta 30045
What This Means
Gwinnett County, Georgia has a light ground snow load of 5 PSF per ASCE 7-22. At this level, most standard residential roofs are designed to handle the load without issue. However, flat or low-slope roofs should still be checked for drifting and sliding snow.
Snow Load Details
| ZIP Code | 30045 |
| County | Gwinnett |
| City | Zcta 30045 |
| State | Georgia (GA) |
| Ground Snow Load | 5 PSF — Light |
| Classification Range | 1 - 20 PSF |
| Data Quality | Measured |
Source: ASCE 7-22 ground snow load polygons via ArcGIS
Roof Snow Load Calculator
ASCE 7-22 flat roof formula: pf = 0.7 × Ce × Ct × Is × pg
Your ground snow load (pg): 5 PSF
ⓘ Simplified estimate for flat roofs. Sloped roofs, drift zones, and unbalanced loads need additional calculations. Consult a structural engineer for final design.
Gwinnett County Snow Load Map
Counties colored by snow load classification. Gray = No Load, Blue = Light, Amber = Moderate, Orange = Heavy, Red = Extreme, Purple = Case Study.
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Frequently Asked Questions
What is the ground snow load for ZIP code 30045?
ZIP code 30045 is in Gwinnett County, Georgia, with a ground snow load of 5 PSF, classified as light per ASCE 7-22.
Is my roof strong enough for snow in 30045?
With a light ground snow load of 5 PSF, standard residential construction typically handles this load, but verify with your local building code.
What county is ZIP code 30045 in?
ZIP code 30045 is in Gwinnett County, Georgia (GA).