Floyd County, IA Roof Snow Load - 24.5 psf
How much snow is too much for a roof in Floyd County, IA?
24.5 psf: that's what ASCE 7-22 requires a typical heated home's roof in Floyd County to carry.
Picture it, not just weigh it: 53.9 in. if it's fresh powder, 19.6 in. once it settles, or a mere 4.9 in. if it's ice. 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.
Floyd County, IA: quick facts
- Design roof snow load24.5 psf
- Ground snow load, ASCE 7 map35 psf
- National rank#349 of 2,758
- Iowa rank#16 of 99
- Population15,008
- Annual snowfall, NOAA normal37.5 in.
- FIPS19067
How Floyd County compares
24.5 psf ranks #349 of 2,758 US counties with a mapped snow load (top 13%) - and #16 of 99 in Iowa. Iowa counties average 21.7 psf; Floyd County runs 2.8 psf higher than that.
Population 15,008 (FIPS 19067), roughly 43.0527°N 92.7874°W. The 35 psf ground snow load ASCE 7-22 maps here becomes 24.5 psf once the code's own design factors are applied.
Typical snowfall in Floyd County, IA
NOAA's 30-year normal for Floyd County: 37.5 in. of snow a year, from the CHARLES CITY, IA US station. (fresh vs. packed vs. ice explains why.)
What this Floyd 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.
Floyd 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. (How this figure is calculated.)