Halifax County, VA Roof Snow Load - 20 psf
What ASCE 7 says about snow load in Halifax County
That's Halifax County's design roof snow load per ASCE 7-22, for a typical heated single-family home - the number a permit reviewer starts from. §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.
Converted to something you can actually eyeball on a roof: about 44 in. of fresh powder, 16 in. once it settles and packs down, or just 4 in. if it's turned to ice. Modern-code homes carry a load like this without issue; an older addition, a carport, or any flat-roofed section is where it is worth checking first.
Snow on Halifax County's roofs right now?
Halifax County at a glance
- Design roof snow load20 psf
- Ground snow load, ASCE 7 map20 psf
- National rank#836 of 2,758
- Virginia rank#38 of 110
- Population33,448
- Annual snowfall, NOAA normal5.5 in.
- FIPS51083
Where Halifax County's figure sits nationally
Out of 2,758 rated US counties, Halifax County sits at #836, the top 30% nationally - #38 of 110 within Virginia. 18.3 psf is Virginia's typical county figure - Halifax County beats it by 1.7 psf.
Near 36.7665°N 78.9396°W, FIPS 51083: Halifax County counts 33,448 residents and a 20 psf map value, which the code's own factors turn into 20 psf.
How much it actually snows in Halifax County
Most winters bring Halifax County roughly 5.5 in. of snow - NOAA's normal at S BOSTON, VA US, 5.9 mi off. (fresh vs. packed vs. ice explains why.)
Read this before you rely on it
Halifax County's number above is ASCE 7-22's default case, not a custom calculation: ordinary residential occupancy, heated, sited on ground that's neither fully sheltered nor fully exposed. Any one of those changing - pitch, exposure, heating, occupancy - moves the real figure.
Nothing here substitutes for an address-level number. Get one free, in about a minute, from the ASCE 7 Hazard Tool using your own coordinates rather than Halifax County's county-wide figure. See the methodology guide.