Light

ZIP Code 64421

Andrew County, Missouri — Amazonia

20PSF (Ground Snow Load)
LightClassification

What This Means

Andrew County, Missouri 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 Code64421
CountyAndrew
CityAmazonia
StateMissouri (MO)
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.

Andrew 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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64420 20 PSF Light 64422 20 PSF Light 64423 20 PSF Light 64424 20 PSF Light

Frequently Asked Questions

What is the ground snow load for ZIP code 64421?

ZIP code 64421 is in Andrew County, Missouri, with a ground snow load of 20 PSF, classified as light per ASCE 7-22.

Is my roof strong enough for snow in 64421?

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 64421 in?

ZIP code 64421 is in Andrew County, Missouri (MO).