Panola County, MS Roof Snow Load - 10 psf
Panola County, MS roof snow load, translated
A typical heated home in Panola County is designed to carry 10 pounds per square foot of snow on its roof, per ASCE 7-22. Flat and low-pitch roofs in Panola County are actually governed by ASCE 7's §7.3.4 minimum of 10 psf, not the 7 psf the ground-load formula alone would produce.
On a roof that means 22 in. of fresh snow, 8 in. once it packs down, or 2 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.
Panola County in numbers
- Design roof snow load10 psf
- Ground snow load, ASCE 7 map10 psf
- National rank#1,830 of 2,758
- Mississippi rank#10 of 82
- Population32,764
- Annual snowfall, NOAA normal0.4 in.
- FIPS28107
Where Panola County ranks
#10 of 82 Mississippi counties by design load, top 66% of 2,758 nationally - that's Panola County's spot. That's 3.5 psf above Mississippi's own county-average design load of 6.5 psf.
FIPS 28107, population 32,764, centered near 34.3652°N 89.9631°W. ASCE 7's underlying ground snow load here is 10 psf before the code's exposure and importance factors bring it to the 10 psf design figure above.
Panola County: average annual snowfall
Panola County sees about 0.4 in. of snow most winters, per the SARDIS DAM, MS US station's 1991-2020 NOAA normal. See the density guide.
Read this before you use Panola 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. (How this figure is calculated.)