Monroe County, OH Roof Snow Load - 20 psf
Monroe County, OH roof snow load, translated
A typical heated home in Monroe 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. 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.
Monroe County, OH: quick facts
- Design roof snow load20 psf
- Ground snow load, ASCE 7 map20 psf
- National rank#1,058 of 2,758
- Ohio rank#85 of 86
- Population13,051
- Annual snowfall, NOAA normal27.3 in.
- FIPS39111
Where Monroe County ranks
#85 of 86 Ohio counties by design load, top 38% of 2,758 nationally - that's Monroe County's spot. Monroe County's figure lands almost exactly on Ohio's own county-average of 20 psf.
FIPS 39111, population 13,051, centered near 39.7263°N 81.091°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.
Monroe County: average annual snowfall
Monroe County sees about 27.3 in. of snow most winters, per the MIDDLEBOURNE 3 ESE, WV US station's 1991-2020 NOAA normal. See the density guide.
Read this before you use Monroe 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.