Perquimans County, NC Roof Snow Load - 10 psf
How much snow is too much for a roof in Perquimans County, NC?
10 psf: that's what ASCE 7-22 requires a typical heated home's roof in Perquimans County to carry. §7.3.4's low-slope minimum of 10 psf is what actually governs on a flat or low-pitch roof here - higher than the 7 psf the base ground-load formula gives.
Picture it, not just weigh it: 22 in. if it's fresh powder, 8 in. once it settles, or a mere 2 in. if it's ice. Standard residential construction handles a load this size without extra bracing; it is a modest addition on top of ordinary roof loading.
Perquimans County at a glance
- Design roof snow load10 psf
- Ground snow load, ASCE 7 map10 psf
- National rank#1,964 of 2,758
- North Carolina rank#91 of 100
- Population13,460
- Annual snowfall, NOAA normal2.3 in.
- FIPS37143
How Perquimans County compares
10 psf ranks #1,964 of 2,758 US counties with a mapped snow load (top 71%) - and #91 of 100 in North Carolina. 12.9 psf is North Carolina's typical county figure - Perquimans County comes in 2.9 psf under it.
Population 13,460 (FIPS 37143), roughly 36.1809°N 76.4032°W. The 10 psf ground snow load ASCE 7-22 maps here becomes 10 psf once the code's own design factors are applied.
Typical snowfall in Perquimans County, NC
NOAA's 30-year normal for Perquimans County: 2.3 in. of snow a year, from the EDENTON, NC US station. (fresh vs. packed vs. ice explains why.)
What this Perquimans 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.
Perquimans 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.