ZIP Code 29451
Charleston County, South Carolina — Isle Of Palms
What This Means
Charleston County, South Carolina 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 | 29451 |
| County | Charleston |
| City | Isle Of Palms |
| State | South Carolina (SC) |
| 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.
Charleston 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 29451?
ZIP code 29451 is in Charleston County, South Carolina, with a ground snow load of 5 PSF, classified as light per ASCE 7-22.
Is my roof strong enough for snow in 29451?
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 29451 in?
ZIP code 29451 is in Charleston County, South Carolina (SC).