Schuyler County, MO Roof Snow Load - 20 psf
Schuyler County, MO roof snow load, translated
A typical heated home in Schuyler County is designed to carry 20 pounds per square foot of snow on its roof, per ASCE 7-22. §7.3.4's low-slope minimum of 20 psf is what actually governs on a flat or low-pitch roof here - higher than the 14 psf the base ground-load formula gives.
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.
Schuyler County at a glance
- Design roof snow load20 psf
- Ground snow load, ASCE 7 map20 psf
- National rank#1,236 of 2,758
- Missouri rank#81 of 115
- Population4,069
- Annual snowfall, NOAA normal22.6 in.
- FIPS29197
Where Schuyler County ranks
#81 of 115 Missouri counties by design load, top 45% of 2,758 nationally - that's Schuyler County's spot. That's 1.4 psf above Missouri's own county-average design load of 18.6 psf.
FIPS 29197, population 4,069, centered near 40.4694°N 92.519°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.
Schuyler County: average annual snowfall
Schuyler County sees about 22.6 in. of snow most winters, per the DOWNING, MO US station's 1991-2020 NOAA normal. See the density guide.
Read this before you use Schuyler 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.