Winn Parish, LA Roof Snow Load - 5 psf
How much snow is too much for a roof in Winn Parish, LA?
5 psf: that's what ASCE 7-22 requires a typical heated home's roof in Winn Parish to carry. §7.3.4's low-slope minimum of 5 psf is what actually governs on a flat or low-pitch roof here - higher than the 3.5 psf the base ground-load formula gives.
Picture it, not just weigh it: 11 in. if it's fresh powder, 4 in. once it settles, or a mere 1 in. if it's ice. A modest addition to standard roof loading. Ordinary residential construction handles this without extra bracing.
Winn Parish at a glance
- Design roof snow load5 psf
- Ground snow load, ASCE 7 map5 psf
- National rank#2,351 of 2,758
- Louisiana rank#23 of 64
- Population13,405
- Annual snowfall, NOAA normal0.2 in.
- FIPS22127
How Winn Parish compares
5 psf ranks #2,351 of 2,758 US counties with a mapped snow load (top 85%) - and #23 of 64 in Louisiana. Louisiana counties average 2.4 psf; Winn Parish runs 2.6 psf higher than that.
Population 13,405 (FIPS 22127), roughly 31.9412°N 92.6413°W. The 5 psf ground snow load ASCE 7-22 maps here becomes 5 psf once the code's own design factors are applied.
Typical snowfall in Winn Parish, LA
NOAA's 30-year normal for Winn Parish: 0.2 in. of snow a year, from the JONESBORO 4 ENE, LA US station. (fresh vs. packed vs. ice explains why.)
What this Winn Parish 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.
Winn Parish'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.)