SnowLoadCheck

Limestone County, TX Roof Snow Load - 5 psf

What ASCE 7 says about snow load in Limestone County

Light
5 psf

That's Limestone County's design roof snow load per ASCE 7-22, for a typical heated single-family home - the number a permit reviewer starts from. The physics-based figure alone would be 3.5 psf, but ASCE 7's own low-slope minimum (§7.3.4) sets a floor of 5 psf for flat and low-pitch roofs here, which is the number that actually governs.

Converted to something you can actually eyeball on a roof: about 11 in. of fresh powder, 4 in. once it settles and packs down, or just 1 in. if it's turned to ice. A modest addition to standard roof loading. Ordinary residential construction handles this without extra bracing.

Limestone County, TX: quick facts

Where Limestone County's figure sits nationally

Out of 2,758 rated US counties, Limestone County sits at #2,273, the top 82% nationally - #122 of 254 within Texas. That's 0.4 psf below Texas's own county-average design load of 5.4 psf.

Near 31.5475°N 96.5936°W, FIPS 48293: Limestone County counts 22,569 residents and a 5 psf map value, which the code's own factors turn into 5 psf.

How much it actually snows in Limestone County

Most winters bring Limestone County roughly 0.1 in. of snow - NOAA's normal at THORNTON 1SSE, TX US, 10.9 mi off. (fresh vs. packed vs. ice explains why.)

Read this before you rely on it

Limestone County's number above is ASCE 7-22's default case, not a custom calculation: ordinary residential occupancy, heated, sited on ground that's neither fully sheltered nor fully exposed. Any one of those changing - pitch, exposure, heating, occupancy - moves the real figure.

Nothing here substitutes for an address-level number. Get one free, in about a minute, from the ASCE 7 Hazard Tool using your own coordinates rather than Limestone County's county-wide figure. Details: the calculation guide.