Heavy

ZIP Code 49405

Mason County, Michigan — Custer

60PSF (Ground Snow Load)
HeavyClassification

What This Means

Mason County, Michigan has a heavy ground snow load of 60 PSF per ASCE 7-22. This is a significant structural load. Roofs must be specifically engineered for this snow load. Consider snow guards, proper insulation to prevent ice dams, and roof designs that shed snow effectively.

Snow Load Details

ZIP Code49405
CountyMason
CityCuster
StateMichigan (MI)
Ground Snow Load60 PSF — Heavy
Classification Range41 - 60 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): 60 PSF

Roof Snow Load: 42 PSF

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

Mason 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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Nearby ZIP Codes

49402 60 PSF Heavy 49403 40 PSF Moderate 49404 40 PSF Moderate 49406 35 PSF Moderate 49408 CS Case Study

Frequently Asked Questions

What is the ground snow load for ZIP code 49405?

ZIP code 49405 is in Mason County, Michigan, with a ground snow load of 60 PSF, classified as heavy per ASCE 7-22.

Is my roof strong enough for snow in 49405?

With a heavy ground snow load of 60 PSF, your roof must be specifically engineered for this load. Consult a structural engineer if building or renovating.

What county is ZIP code 49405 in?

ZIP code 49405 is in Mason County, Michigan (MI).