Regional Anchor

Commercial roofing acrossWyominganchored in Casper, WY

High-plains, the windiest exposure in A-1's territory, with 85 freeze-thaw cycles, 46 inches annual snowfall, and energy sector industrial demands.

Casper at a glance
Coordinates
42.866°N · 106.313°W
Freeze-thaw
85est. / yr
Snowfall
46in
Avg July high
89°F
Design wind
105mph
Frost window
May 18 – Sep 27
Frost-free
151days
Ground snow load
30psf

Natrona County building guidelines specify 30 psf below 6,000 feet elevation and 100 psf at or above 6,000 feet, with no roof pitch reduction permitted. Casper proper, at 5,120 feet, falls in the 30 psf tier; higher terrain within the county, such as the foothills and Casper Mountain, falls under the 100 psf tier.

Design wind
105mph · Exposure C

Natrona County guidelines cite 105 mph 3-second gust with an allowable stress design equivalent of 82 mph for one and two family dwellings. A separate commercial or Risk Category II specific figure was not located; the general Wyoming Risk Category II range is 105 to 115 mph. Treat 105 mph as an approximate reference point, not a confirmed commercial figure.

Response
24 business hours

Casper's driest of the five cities precipitation total does not reduce structural risk. Its wind exposure, among the windiest in the state, and its elevation tiered snow load rule, 30 psf in the valley jumping to 100 psf on nearby high ground, mean uplift design and site specific elevation verification are the two things a roofer needs to get right before quoting a project. The 71.8 inches of annual snowfall, second highest of the five cities, also argues for drainage and ice damming details at parapets and rooftop penetrations. Verify current code values with the Casper building department before specifying a system.

Natrona County carries a very low tornado risk rating, with the largest confirmed local tornado an F2 in 1971 that caused three injuries and no deaths. No county specific hail day count was available, though Wyoming as a whole averages about ten tornadoes per year.

Sectors in the Wyoming Territory

Oil and gas support services infrastructure, a regional medical center, retail, and industrial buildings in central Wyoming's Natrona County.

Casper's commercial geography centers on the airport business park and Foreign Trade Zone west of downtown, served by rail and Highway 20/26, with Interstate 25 as the main highway approach and a traditional downtown core along the North Platte River.

01energy
02healthcare
03retail
04manufacturing
05agriculture
Local Roofing Notes
  1. 01

    Casper anchors A-1's central Wyoming operation, with response coverage for the entire Natrona County commercial market including oil and gas support facilities

  2. 02

    46 inches of average annual snowfall, the highest in Wyoming, combined with the uplift requirements that come with it makes wind rather than snow load the governing design case here

  3. 03

    Oil and gas support operations here include large metal and prefab buildings whose original roofing systems are often inadequate for the actual snow load and wind exposure at this elevation

Put A-1 on the Roof

One call puts a crew on your building inCasper, WY

Silicone coatings, spray foam roofing, and full restoration, carried across Wyoming on a 45-year service record.

Local roofing reference

Casper roofing facts

01Why does freeze-thaw matter for commercial roofs in Casper?
Because Casper, WY runs through an estimated 85 freeze-thaw cycles a year. Water that gets into a seam freezes, expands, and opens the seam further with every cycle, so the roof system has to be watertight as one surface.
02How much wind does a Casper commercial roof have to be built for?
Design to 105 mph at Exposure C under ASCE 7, then verify with the Casper building department. Uplift resistance at edges and corners is what that figure drives on a low-slope roof.
03How much snow does a Casper commercial roof carry in a typical winter?
Casper averages roughly 46 inches of snowfall a year. Drifting against parapets and rooftop units concentrates that load, so drainage paths and drift zones are checked in every assessment.
04If my Casper roof is leaking, how quickly will A-1 get back to me?
Within 24 business hours. Report an active leak through the contact page or by phone and it moves to the front of the Casper, WY schedule.
05Which structural loads govern a commercial roof in Casper?
Two numbers: 30 psf ground snow load (Natrona County building guidelines specify 30 psf below 6,000 feet elevation and 100 psf at or above 6,000 feet, with no roof pitch reduction permitted. Casper proper, at 5,120 feet, falls in the 30 psf tier; higher terrain within the county, such as the foothills and Casper Mountain, falls under the 100 psf tier.) and 105 mph design wind at Exposure C (Natrona County guidelines cite 105 mph 3-second gust with an allowable stress design equivalent of 82 mph for one and two family dwellings. A separate commercial or Risk Category II specific figure was not located; the general Wyoming Risk Category II range is 105 to 115 mph. Treat 105 mph as an approximate reference point, not a confirmed commercial figure.). Casper's driest of the five cities precipitation total does not reduce structural risk. Its wind exposure, among the windiest in the state, and its elevation tiered snow load rule, 30 psf in the valley jumping to 100 psf on nearby high ground, mean uplift design and site specific elevation verification are the two things a roofer needs to get right before quoting a project. The 71.8 inches of annual snowfall, second highest of the five cities, also argues for drainage and ice damming details at parapets and rooftop penetrations. Verify current figures locally before specifying.
06What is the working window for a roof project in Casper?
About 151 days, May 18 to Sep 27 in a typical year. Repairs run year-round; full coating and spray foam applications are scheduled inside that window because cure times stretch in the cold.