Bullock County, AL Roof Snow Load - 5 psf
Bullock County, AL roof snow load, translated
A typical heated home in Bullock County is designed to carry 5 pounds per square foot of snow on its roof, per ASCE 7-22. 3.5 psf is what the ground-load formula alone gives; Bullock County's 5 psf low-slope minimum (§7.3.4) beats it, so that figure is the one that governs on flat and low-pitch roofs.
On a roof that means 11 in. of fresh snow, 4 in. once it packs down, or 1 in. of solid ice - three very different piles for the same load. A modest addition to standard roof loading. Ordinary residential construction handles this without extra bracing.
Bullock County, AL: quick facts
- Design roof snow load5 psf
- Ground snow load, ASCE 7 map5 psf
- National rank#2,382 of 2,758
- Alabama rank#54 of 67
- Population9,901
- Annual snowfall, NOAA normal0.6 in.
- FIPS01011
Where Bullock County ranks
#54 of 67 Alabama counties by design load, top 86% of 2,758 nationally - that's Bullock County's spot. 5.6 psf is Alabama's typical county figure - Bullock County comes in 0.6 psf under it.
FIPS 01011, population 9,901, centered near 32.1018°N 85.7173°W. ASCE 7's underlying ground snow load here is 5 psf before the code's exposure and importance factors bring it to the 5 psf design figure above.
Bullock County: average annual snowfall
Bullock County sees about 0.6 in. of snow most winters, per the UNION SPRINGS 9 S, AL US station's 1991-2020 NOAA normal. See the density guide.
Read this before you use Bullock County's figure
The figure above assumes the case ASCE 7-22 treats as typical: a heated, ordinary-occupancy home on a partially exposed site. Change any of those - exposure, heating, roof pitch, occupancy category - and the real design number moves.
A building permit needs the number at your exact address, not the county average - the free ASCE 7 Hazard Tool returns that from your coordinates in about a minute and produces a PDF a plan reviewer will accept. Details: the calculation guide.