Washington County, TX Roof Snow Load - 5 psf
How much snow is too much for a roof in Washington County, TX?
5 psf: that's what ASCE 7-22 requires a typical heated home's roof in Washington County to carry. Flat and low-pitch roofs in Washington 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.
Picture it, not just weigh it: 11 in. if it's fresh powder, 4 in. once it settles, or a mere 1 in. if it's ice. A modest addition to standard roof loading. Ordinary residential construction handles this without extra bracing.
Snow on Washington County's roofs right now?
Washington County in numbers
- Design roof snow load5 psf
- Ground snow load, ASCE 7 map5 psf
- National rank#2,215 of 2,758
- Texas rank#103 of 254
- Population37,810
- Annual snowfall, NOAA normal0 in.
- FIPS48477
How Washington County compares
5 psf ranks #2,215 of 2,758 US counties with a mapped snow load (top 80%) - and #103 of 254 in Texas. Texas counties average 5.4 psf; Washington County runs 0.4 psf lower than that.
Population 37,810 (FIPS 48477), roughly 30.2151°N 96.4103°W. The 5 psf ground snow load ASCE 7-22 maps here becomes 5 psf once the code's own design factors are applied.
Typical snowfall in Washington County, TX
NOAA's 30-year normal for Washington County: 0 in. of snow a year, from the BELLVILLE 6NNE, TX US station. (fresh vs. packed vs. ice explains why.)
What this Washington County figure assumes
This is a county-level reference figure for a typical heated home built to Risk Category II (ordinary residential), on a partially exposed lot - the assumptions ASCE 7-22 itself treats as the default case. A steeper roof, a fully exposed hilltop lot, an unheated structure, or a higher risk category all change the actual number.
Washington County's permit office wants an address-specific figure, not this county average - the ASCE 7 Hazard Tool is free, takes under a minute, and outputs a PDF most reviewers accept. See the methodology guide.