Pike County, MO Roof Snow Load - 20 psf
Pike County, MO roof snow load, translated
A typical heated home in Pike County is designed to carry 20 pounds per square foot of snow on its roof, per ASCE 7-22. §7.3.4's low-slope minimum of 20 psf is what actually governs on a flat or low-pitch roof here - higher than the 14 psf the base ground-load formula gives.
On a roof that means 44 in. of fresh snow, 16 in. once it packs down, or 4 in. of solid ice - three very different piles for the same load. This is a meaningful design load - most modern-code homes handle it fine, though an addition, a carport or a flat-roofed section can be a weak spot.
Got real snow on a Pike County roof right now?
Pike County at a glance
- Design roof snow load20 psf
- Ground snow load, ASCE 7 map20 psf
- National rank#983 of 2,758
- Missouri rank#45 of 115
- Population17,961
- Annual snowfall, NOAA normal9.9 in.
- FIPS29163
Where Pike County ranks
#45 of 115 Missouri counties by design load, top 36% of 2,758 nationally - that's Pike County's spot. Missouri counties average 18.6 psf; Pike County runs 1.4 psf higher than that.
FIPS 29163, population 17,961, centered near 39.34°N 91.1716°W. ASCE 7's underlying ground snow load here is 20 psf before the code's exposure and importance factors bring it to the 20 psf design figure above.
Pike County: average annual snowfall
Pike County sees about 9.9 in. of snow most winters, per the LOUISIANA, MO US station's 1991-2020 NOAA normal. See the density guide.
Read this before you use Pike 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. See the methodology guide.