Randolph County, IN Roof Snow Load - 20 psf
Randolph County, IN roof snow load, translated
A typical heated home in Randolph County is designed to carry 20 pounds per square foot of snow on its roof, per ASCE 7-22. Flat and low-pitch roofs in Randolph County are actually governed by ASCE 7's §7.3.4 minimum of 20 psf, not the 14 psf the ground-load formula alone would produce.
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.
Randolph County in numbers
- Design roof snow load20 psf
- Ground snow load, ASCE 7 map20 psf
- National rank#914 of 2,758
- Indiana rank#53 of 89
- Population24,337
- Annual snowfall, NOAA normal25.1 in.
- FIPS18135
Where Randolph County ranks
#53 of 89 Indiana counties by design load, top 33% of 2,758 nationally - that's Randolph County's spot. Indiana counties average 19.3 psf; Randolph County runs 0.7 psf higher than that.
FIPS 18135, population 24,337, centered near 40.1641°N 85.0058°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.
Randolph County: average annual snowfall
Randolph County sees about 25.1 in. of snow most winters, per the RIDGEVILLE 3 SSE, IN US station's 1991-2020 NOAA normal. See the density guide.
Read this before you use Randolph 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.