Moffat County, CO Roof Snow Load - 24.5 psf
Moffat County, CO roof snow load, translated
A typical heated home in Moffat County is designed to carry 24.5 pounds per square foot of snow on its roof, per ASCE 7-22.
On a roof that means 53.9 in. of fresh snow, 19.6 in. once it packs down, or 4.9 in. of solid ice - three very different piles for the same load. A meaningful design load. Most homes built to modern code handle it, but additions, carports, and flat-roofed sections are worth a second look.
Moffat County, CO: quick facts
- Design roof snow load24.5 psf
- Ground snow load, ASCE 7 map35 psf
- National rank#352 of 2,758
- Colorado rank#1 of 24
- Population13,142
- Annual snowfall, NOAA normal55.3 in.
- FIPS08081
Where Moffat County ranks
#1 of 24 Colorado counties by design load, top 13% of 2,758 nationally - that's Moffat County's spot. That's 6.8 psf above Colorado's own county-average design load of 17.7 psf.
FIPS 08081, population 13,142, centered near 40.6109°N 108.2172°W. ASCE 7's underlying ground snow load here is 35 psf before the code's exposure and importance factors bring it to the 24.5 psf design figure above.
Moffat County: average annual snowfall
Moffat County sees about 55.3 in. of snow most winters, per the MAYBELL, CO US station's 1991-2020 NOAA normal. See the density guide.
Read this before you use Moffat 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.)