Pulaski County, VA Roof Snow Load - 20 psf
How much snow is too much for a roof in Pulaski County, VA?
20 psf: that's what ASCE 7-22 requires a typical heated home's roof in Pulaski County to carry. 17.5 psf is what the ground-load formula alone gives; Pulaski County's 20 psf low-slope minimum (§7.3.4) beats it, so that figure is the one that governs on flat and low-pitch roofs.
Picture it, not just weigh it: 44 in. if it's fresh powder, 16 in. once it settles, or a mere 4 in. if it's ice. 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.
Pulaski County, VA: quick facts
- Design roof snow load20 psf
- Ground snow load, ASCE 7 map25 psf
- National rank#832 of 2,758
- Virginia rank#36 of 110
- Population33,579
- Annual snowfall, NOAA normal22.7 in.
- FIPS51155
How Pulaski County compares
20 psf ranks #832 of 2,758 US counties with a mapped snow load (top 30%) - and #36 of 110 in Virginia. That's 1.7 psf above Virginia's own county-average design load of 18.3 psf.
Population 33,579 (FIPS 51155), roughly 37.0634°N 80.7134°W. The 25 psf ground snow load ASCE 7-22 maps here becomes 20 psf once the code's own design factors are applied.
Typical snowfall in Pulaski County, VA
NOAA's 30-year normal for Pulaski County: 22.7 in. of snow a year, from the PEARISBURG 4 SSE, VA US station. (fresh vs. packed vs. ice explains why.)
What this Pulaski County figure assumes
This is a county-level reference figure for a typical heated home built to Risk Category II (ordinary residential), on a partially exposed lot - the assumptions ASCE 7-22 itself treats as the default case. A steeper roof, a fully exposed hilltop lot, an unheated structure, or a higher risk category all change the actual number.
Pulaski County's permit office wants an address-specific figure, not this county average - the ASCE 7 Hazard Tool is free, takes under a minute, and outputs a PDF most reviewers accept. (How this figure is calculated.)