Light

ZIP Code 28623

Alleghany County, North Carolina — Ennice

20PSF (Ground Snow Load)
LightClassification

What This Means

Alleghany County, North Carolina has a light ground snow load of 20 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 Code28623
CountyAlleghany
CityEnnice
StateNorth Carolina (NC)
Ground Snow Load20 PSF — Light
Classification Range1 - 20 PSF
Data QualityMeasured

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): 20 PSF

Roof Snow Load: 14 PSF

ⓘ Simplified estimate for flat roofs. Sloped roofs, drift zones, and unbalanced loads need additional calculations. Consult a structural engineer for final design.

Alleghany 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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28621 20 PSF Light 28622 15 PSF Light 28624 20 PSF Light 28625 15 PSF Light 28626 20 PSF Light

Frequently Asked Questions

What is the ground snow load for ZIP code 28623?

ZIP code 28623 is in Alleghany County, North Carolina, with a ground snow load of 20 PSF, classified as light per ASCE 7-22.

Is my roof strong enough for snow in 28623?

With a light ground snow load of 20 PSF, standard residential construction typically handles this load, but verify with your local building code.

What county is ZIP code 28623 in?

ZIP code 28623 is in Alleghany County, North Carolina (NC).