Huron County, OH Roof Snow Load - 20 psf
Huron County, OH roof snow load, translated
A typical heated home in Huron County is designed to carry 20 pounds per square foot of snow on its roof, per ASCE 7-22. §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.
On a roof that means 44 in. of fresh snow, 16 in. once it packs down, or 4 in. of solid ice - three very different piles for the same load. 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.
Already snow on the roof in Huron County?
Huron County, OH: quick facts
- Design roof snow load20 psf
- Ground snow load, ASCE 7 map20 psf
- National rank#711 of 2,758
- Ohio rank#43 of 86
- Population58,168
- Annual snowfall, NOAA normal32.7 in.
- FIPS39077
Where Huron County ranks
#43 of 86 Ohio counties by design load, top 26% of 2,758 nationally - that's Huron County's spot. Huron County's figure lands almost exactly on Ohio's own county-average of 20 psf.
FIPS 39077, population 58,168, centered near 41.1451°N 82.5946°W. ASCE 7's underlying ground snow load here is 20 psf before the code's exposure and importance factors bring it to the 20 psf design figure above.
Huron County: average annual snowfall
Huron County sees about 32.7 in. of snow most winters, per the NORWALK WWTP, OH US station's 1991-2020 NOAA normal. See the density guide.
Read this before you use Huron 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.