Hartley County, TX Roof Snow Load - 10 psf
Hartley County, TX roof snow load, translated
A typical heated home in Hartley County is designed to carry 10 pounds per square foot of snow on its roof, per ASCE 7-22. ASCE 7's low-slope-roof minimum (§7.3.4) raises the governing figure to 10 psf - higher than the 7 psf the ground-load formula alone would give, and the code says use the larger one.
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.
Hartley County at a glance
- Design roof snow load10 psf
- Ground snow load, ASCE 7 map10 psf
- National rank#2,047 of 2,758
- Texas rank#32 of 254
- Population4,996
- Annual snowfall, NOAA normal20.3 in.
- FIPS48205
Where Hartley County ranks
#32 of 254 Texas counties by design load, top 74% of 2,758 nationally - that's Hartley County's spot. 5.4 psf is Texas's typical county figure - Hartley County beats it by 4.6 psf.
FIPS 48205, population 4,996, centered near 35.8402°N 102.61°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.
Hartley County: average annual snowfall
Hartley County sees about 20.3 in. of snow most winters, per the DALHART MUNI AP, TX US station's 1991-2020 NOAA normal. See the density guide.
Read this before you use Hartley 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.