Clark County, WI Roof Snow Load - 35 psf
Clark County, WI roof snow load, translated
A typical heated home in Clark County is designed to carry 35 pounds per square foot of snow on its roof, per ASCE 7-22.
On a roof that means 77 in. of fresh snow, 28 in. once it packs down, or 7 in. of solid ice - three very different piles for the same load. This is a serious structural load - older homes built before modern snow-load provisions, or ones with low-slope or flat roof sections, are worth having checked.
Clark County at a glance
- Design roof snow load35 psf
- Ground snow load, ASCE 7 map50 psf
- National rank#141 of 2,758
- Wisconsin rank#29 of 72
- Population34,801
- Annual snowfall, NOAA normal52 in.
- FIPS55019
Where Clark County ranks
#29 of 72 Wisconsin counties by design load, top 5% of 2,758 nationally - that's Clark County's spot. 30.9 psf is Wisconsin's typical county figure - Clark County beats it by 4.1 psf.
FIPS 55019, population 34,801, centered near 44.7392°N 90.6099°W. ASCE 7's underlying ground snow load here is 50 psf before the code's exposure and importance factors bring it to the 35 psf design figure above.
Clark County: average annual snowfall
Clark County sees about 52 in. of snow most winters, per the STANLEY WWTP, WI US station's 1991-2020 NOAA normal. See the density guide.
Read this before you use Clark 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. (How this figure is calculated.)