Quitman County, MS Roof Snow Load - 10 psf
Quitman County, MS roof snow load, translated
A typical heated home in Quitman County is designed to carry 10 pounds per square foot of snow on its roof, per ASCE 7-22. ASCE 7's low-slope-roof minimum (§7.3.4) raises the governing figure to 10 psf - higher than the 7 psf the ground-load formula alone would give, and the code says use the larger one.
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. This is a modest add-on to standard roof loading - ordinary residential construction carries it without extra bracing.
Quitman County, MS: quick facts
- Design roof snow load10 psf
- Ground snow load, ASCE 7 map10 psf
- National rank#2,041 of 2,758
- Mississippi rank#34 of 82
- Population5,542
- Annual snowfall, NOAA normal0.4 in.
- FIPS28119
Where Quitman County ranks
#34 of 82 Mississippi counties by design load, top 74% of 2,758 nationally - that's Quitman County's spot. That's 3.5 psf above Mississippi's own county-average design load of 6.5 psf.
FIPS 28119, population 5,542, centered near 34.2528°N 90.2902°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.
Quitman County: average annual snowfall
Quitman County sees about 0.4 in. of snow most winters, per the LAMBERT 1W, MS US station's 1991-2020 NOAA normal. See the density guide.
Read this before you use Quitman 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. See the methodology guide.