Briscoe County, TX Roof Snow Load - 15 psf
Briscoe County, TX roof snow load, translated
A typical heated home in Briscoe County is designed to carry 15 pounds per square foot of snow on its roof, per ASCE 7-22. 10.5 psf is what the ground-load formula alone gives; Briscoe County's 15 psf low-slope minimum (§7.3.4) beats it, so that figure is the one that governs on flat and low-pitch roofs.
On a roof that means 33 in. of fresh snow, 12 in. once it packs down, or 3 in. of solid ice - three very different piles for the same load. Modern-code homes carry a load like this without issue; an older addition, a carport, or any flat-roofed section is where it is worth checking first.
Briscoe County at a glance
- Design roof snow load15 psf
- Ground snow load, ASCE 7 map15 psf
- National rank#1,645 of 2,758
- Texas rank#27 of 254
- Population1,494
- Annual snowfall, NOAA normal9.2 in.
- FIPS48045
Where Briscoe County ranks
#27 of 254 Texas counties by design load, top 60% of 2,758 nationally - that's Briscoe County's spot. That's 9.6 psf above Texas's own county-average design load of 5.4 psf.
FIPS 48045, population 1,494, centered near 34.5252°N 101.2059°W. ASCE 7's underlying ground snow load here is 15 psf before the code's exposure and importance factors bring it to the 15 psf design figure above.
Briscoe County: average annual snowfall
Briscoe County sees about 9.2 in. of snow most winters, per the SILVERTON, TX US station's 1991-2020 NOAA normal. See the density guide.
Read this before you use Briscoe 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.)