Valencia County, NM Roof Snow Load - 5 psf
How much snow is too much for a roof in Valencia County, NM?
5 psf: that's what ASCE 7-22 requires a typical heated home's roof in Valencia County to carry. 3.5 psf is what the ground-load formula alone gives; Valencia County's 5 psf low-slope minimum (§7.3.4) beats it, so that figure is the one that governs on flat and low-pitch roofs.
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.
Valencia County in numbers
- Design roof snow load5 psf
- Ground snow load, ASCE 7 map5 psf
- National rank#2,155 of 2,758
- New Mexico rank#14 of 27
- Population80,813
- Annual snowfall, NOAA normal5.1 in.
- FIPS35061
How Valencia County compares
5 psf ranks #2,155 of 2,758 US counties with a mapped snow load (top 78%) - and #14 of 27 in New Mexico. That's 1.9 psf below New Mexico's own county-average design load of 6.9 psf.
Population 80,813 (FIPS 35061), roughly 34.7168°N 106.8066°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 Valencia County, NM
NOAA's 30-year normal for Valencia County: 5.1 in. of snow a year, from the LOS LUNAS 3 SSW, NM US station. (fresh vs. packed vs. ice explains why.)
What this Valencia 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.
Valencia 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.