Galax city, VA Roof Snow Load - 20 psf
Galax city, VA: your roof's ASCE 7 snow number, in plain English
Galax city's roofs are built to hold 20 psf of snow, the ASCE 7-22 figure a permit reviewer checks first. §7.3.4's low-slope minimum of 20 psf is what actually governs on a flat or low-pitch roof here - higher than the 14 psf the base ground-load formula gives.
In depth, not weight: that's roughly 44 inches of fresh, light snow, 16 inches of old, settled snow, or as little as 4 inches of solid ice - snow that heavy is rare here but ice from a freeze-thaw cycle adds up far faster than the depth suggests. This is a meaningful design load - most modern-code homes handle it fine, though an addition, a carport or a flat-roofed section can be a weak spot.
Galax city, VA: quick facts
- Design roof snow load20 psf
- Ground snow load, ASCE 7 map20 psf
- National rank#1,177 of 2,758
- Virginia rank#78 of 110
- Population6,739
- Annual snowfall, NOAA normal16.6 in.
- FIPS51640
Galax city by the numbers
Nationally that's #1,177 out of 2,758 rated counties, the top 43%; within Virginia alone, Galax city ranks #78 of 110. 18.3 psf is Virginia's typical county figure - Galax city beats it by 1.7 psf.
Galax city, FIPS 51640, is home to 6,739 people near 36.6656°N 80.9143°W. Its 20 psf ground snow load figure is the map value; 20 psf is what a roof is actually designed for.
Galax city's snowfall, most winters
16.6 in. a year: that's Galax city's NOAA 1991-2020 snowfall normal, measured at GALAX RADIO WBRF, VA US (0.2 mi away). See the density guide.
Before you rely on Galax city's number
Treat the Galax city figure as a starting point, not a final answer: it assumes standard occupancy, a heated structure and a moderately sheltered site, per ASCE 7-22's own defaults. Exposed terrain, an unheated building or a steeper roof all shift the real number.
For a real application, skip the county number and go straight to the ASCE 7 Hazard Tool - enter your coordinates and it returns a site-specific figure a plan reviewer will recognize. See the methodology guide.