Payne County, OK Roof Snow Load - 10 psf
Payne County, OK roof snow load, translated
A typical heated home in Payne County is designed to carry 10 pounds per square foot of snow on its roof, per ASCE 7-22. Flat and low-pitch roofs in Payne County are actually governed by ASCE 7's §7.3.4 minimum of 10 psf, not the 7 psf the ground-load formula alone would produce.
On a roof that means 22 in. of fresh snow, 8 in. once it packs down, or 2 in. of solid ice - three very different piles for the same load. A modest addition to standard roof loading. Ordinary residential construction handles this without extra bracing.
Payne County, OK: quick facts
- Design roof snow load10 psf
- Ground snow load, ASCE 7 map10 psf
- National rank#1,726 of 2,758
- Oklahoma rank#26 of 77
- Population84,199
- Annual snowfall, NOAA normal6.2 in.
- FIPS40119
Where Payne County ranks
#26 of 77 Oklahoma counties by design load, top 63% of 2,758 nationally - that's Payne County's spot. Oklahoma counties average 11 psf; Payne County runs 1 psf lower than that.
FIPS 40119, population 84,199, centered near 36.0792°N 96.9753°W. ASCE 7's underlying ground snow load here is 10 psf before the code's exposure and importance factors bring it to the 10 psf design figure above.
Payne County: average annual snowfall
Payne County sees about 6.2 in. of snow most winters, per the INGALLS 1N, OK US station's 1991-2020 NOAA normal. See the density guide.
Read this before you use Payne 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.