SnowLoadCheck

Tulsa County, OK Roof Snow Load - 10 psf

Tulsa County, OK: your roof's ASCE 7 snow number, in plain English

Light
10 psf

Tulsa County's roofs are built to hold 10 psf of snow, the ASCE 7-22 figure a permit reviewer checks first. Flat and low-pitch roofs in Tulsa 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.

In depth, not weight: that's roughly 22 inches of fresh, light snow, 8 inches of old, settled snow, or as little as 2 inches of solid ice - snow that heavy is rare here but ice from a freeze-thaw cycle adds up far faster than the depth suggests. A modest addition to standard roof loading. Ordinary residential construction handles this without extra bracing.

Already snow on the roof in Tulsa County?

in. of

Tulsa County in numbers

Tulsa County by the numbers

Nationally that's #1,652 out of 2,758 rated counties, the top 60%; within Oklahoma alone, Tulsa County ranks #20 of 77. 11 psf is Oklahoma's typical county figure - Tulsa County comes in 1 psf under it.

Tulsa County, FIPS 40143, is home to 693,514 people near 36.1203°N 95.9418°W. Its 10 psf ground snow load figure is the map value; 10 psf is what a roof is actually designed for.

Tulsa County's snowfall, most winters

8.7 in. a year: that's Tulsa County's NOAA 1991-2020 snowfall normal, measured at TULSA INTL AP, OK US (6.3 mi away). See the density guide.

Before you rely on Tulsa County's number

Treat the Tulsa County figure as a starting point, not a final answer: it assumes standard occupancy, a heated structure and a moderately sheltered site, per ASCE 7-22's own defaults. Exposed terrain, an unheated building or a steeper roof all shift the real number.

For a real application, skip the county number and go straight to the ASCE 7 Hazard Tool - enter your coordinates and it returns a site-specific figure a plan reviewer will recognize. (How this figure is calculated.)