Ector County, TX Roof Snow Load - 5 psf
Ector County, TX roof snow load, translated
A typical heated home in Ector County is designed to carry 5 pounds per square foot of snow on its roof, per ASCE 7-22. Flat and low-pitch roofs in Ector County are actually governed by ASCE 7's §7.3.4 minimum of 5 psf, not the 3.5 psf the ground-load formula alone would produce.
On a roof that means 11 in. of fresh snow, 4 in. once it packs down, or 1 in. of solid ice - three very different piles for the same load. This is a modest add-on to standard roof loading - ordinary residential construction carries it without extra bracing.
Ector County in numbers
- Design roof snow load5 psf
- Ground snow load, ASCE 7 map5 psf
- National rank#2,114 of 2,758
- Texas rank#60 of 254
- Population170,022
- Annual snowfall, NOAA normal2.1 in.
- FIPS48135
Where Ector County ranks
#60 of 254 Texas counties by design load, top 77% of 2,758 nationally - that's Ector County's spot. That's 0.4 psf below Texas's own county-average design load of 5.4 psf.
FIPS 48135, population 170,022, centered near 31.8653°N 102.5425°W. ASCE 7's underlying ground snow load here is 5 psf before the code's exposure and importance factors bring it to the 5 psf design figure above.
Ector County: average annual snowfall
Ector County sees about 2.1 in. of snow most winters, per the ODESSA 1SE, TX US station's 1991-2020 NOAA normal. See the density guide.
Read this before you use Ector 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.)