Ashland County, WI Roof Snow Load - 42 psf
Ashland County, WI roof snow load, translated
A typical heated home in Ashland County is designed to carry 42 pounds per square foot of snow on its roof, per ASCE 7-22.
On a roof that means 92.4 in. of fresh snow, 33.6 in. once it packs down, or 8.4 in. of solid ice - three very different piles for the same load. A serious structural load. Homes built before modern snow-load provisions, or with low-slope/flat roof sections, are the ones most worth having checked.
Ashland County, WI: quick facts
- Design roof snow load42 psf
- Ground snow load, ASCE 7 map60 psf
- National rank#63 of 2,758
- Wisconsin rank#12 of 72
- Population16,196
- Annual snowfall, NOAA normal134.4 in.
- FIPS55003
Where Ashland County ranks
#12 of 72 Wisconsin counties by design load, top 2% of 2,758 nationally - that's Ashland County's spot. 30.9 psf is Wisconsin's typical county figure - Ashland County beats it by 11.1 psf.
FIPS 55003, population 16,196, centered near 46.5444°N 90.6797°W. ASCE 7's underlying ground snow load here is 60 psf before the code's exposure and importance factors bring it to the 42 psf design figure above.
Ashland County: average annual snowfall
Ashland County sees about 134.4 in. of snow most winters, per the SAXON 1WSW, WI US station's 1991-2020 NOAA normal. See the density guide.
Read this before you use Ashland 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.