Robertson County, TX Roof Snow Load - 5 psf
How much snow is too much for a roof in Robertson County, TX?
5 psf: that's what ASCE 7-22 requires a typical heated home's roof in Robertson County to carry. ASCE 7's low-slope-roof minimum (§7.3.4) raises the governing figure to 5 psf - higher than the 3.5 psf the ground-load formula alone would give, and the code says use the larger one.
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. This is a modest add-on to standard roof loading - ordinary residential construction carries it without extra bracing.
Robertson County in numbers
- Design roof snow load5 psf
- Ground snow load, ASCE 7 map5 psf
- National rank#2,320 of 2,758
- Texas rank#140 of 254
- Population17,659
- Annual snowfall, NOAA normal0.3 in.
- FIPS48395
How Robertson County compares
5 psf ranks #2,320 of 2,758 US counties with a mapped snow load (top 84%) - and #140 of 254 in Texas. 5.4 psf is Texas's typical county figure - Robertson County comes in 0.4 psf under it.
Population 17,659 (FIPS 48395), roughly 31.0255°N 96.5149°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 Robertson County, TX
NOAA's 30-year normal for Robertson County: 0.3 in. of snow a year, from the BREMOND, TX US station. (fresh vs. packed vs. ice explains why.)
What this Robertson 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.
Robertson 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. Details: the calculation guide.