Crawford County, OH Roof Snow Load - 20 psf
Crawford County, OH roof snow load, translated
A typical heated home in Crawford County is designed to carry 20 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 20 psf - higher than the 14 psf the ground-load formula alone would give, and the code says use the larger one.
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. This is a meaningful design load - most modern-code homes handle it fine, though an addition, a carport or a flat-roofed section can be a weak spot.
Crawford County at a glance
- Design roof snow load20 psf
- Ground snow load, ASCE 7 map20 psf
- National rank#777 of 2,758
- Ohio rank#58 of 86
- Population41,626
- Annual snowfall, NOAA normal23.3 in.
- FIPS39033
Where Crawford County ranks
#58 of 86 Ohio counties by design load, top 28% of 2,758 nationally - that's Crawford County's spot. Crawford County's figure lands almost exactly on Ohio's own county-average of 20 psf.
FIPS 39033, population 41,626, centered near 40.8485°N 82.9248°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.
Crawford County: average annual snowfall
Crawford County sees about 23.3 in. of snow most winters, per the BUCYRUS, OH US station's 1991-2020 NOAA normal. See the density guide.
Read this before you use Crawford 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.