Newport County, RI Roof Snow Load - 21 psf

How much snow is too much for a roof in Newport County, RI?

Picture it, not just weigh it: 46.2 in. if it's fresh powder, 16.8 in. once it settles, or a mere 4.2 in. if it's ice. 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.

Newport County, RI: quick facts

• Design roof snow load21 psf
• Ground snow load, ASCE 7 map30 psf
• National rank#424 of 2,758
• Rhode Island rank#4 of 5
• Population83,468
• Annual snowfall, NOAA normal26 in.
• FIPS44005

How Newport County compares

21 psf ranks #424 of 2,758 US counties with a mapped snow load (top 15%) - and #4 of 5 in Rhode Island. Rhode Island counties average 21.7 psf; Newport County runs 0.7 psf lower than that.

Population 83,468 (FIPS 44005), roughly 41.501°N 71.2831°W. The 30 psf ground snow load ASCE 7-22 maps here becomes 21 psf once the code's own design factors are applied.

Typical snowfall in Newport County, RI

NOAA's 30-year normal for Newport County: 26 in. of snow a year, from the NEWPORT ROSE, RI US station. (fresh vs. packed vs. ice explains why.)

What this Newport 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.

Newport 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.