Roof Repair, Restoration and Replacement in St. George, Utah

Heat is the headline

NOAA’s 1991–2020 normals for the St. George station (about 2,857 feet) record about 9.3 inches of precipitation and 1.2 inches of snow a year, only about 63 days a year with a low at or below 32°F, and about 128 days a year with a high of 90°F or more, including about 63 days at 100°F or more. The Salt Lake City airport, by comparison, averages about 62 days at 90°F or more and about 8 at 100°F or more. Asphalt shingles on a St. George roof bake for a large share of the year; see why Northern Utah asphalt roofs age faster for how heat and sun age shingles.

The EPA’s UV Index guidance notes that UV intensity rises with elevation. Heavy sun exposure is why granule wear and surface cracking get so much of our attention in southern Utah; see asphalt shingle granule loss in Utah.

Monsoon storms

The National Park Service describes the Colorado Plateau’s monsoon season as typically July, August and September, when afternoon thunderstorms are most frequent and severe. Thunderstorms in southern Utah can bring sudden heavy rain, lightning and wind. In July 1996, the Deseret News reported that tropical moisture dumped heavy rain on the city of Washington, sending water and debris into five basements, as part of a storm that then tracked north through the state. Sudden heavy rain finds weak flashing and aged sealant, which is a good reason to have a roof looked at before the season starts.

A newer housing stock, with a code that reflects the climate

St. George’s median home dates to 2001 (ACS 2020–2024), and by our arithmetic about 54% of its 43,039 housing units were built in 2000 or later and only about 11% before 1980. About 67% of occupied homes are owner-occupied. The city is the largest we cover by land, at 77.4 square miles.

St. George City Code’s residential table lists a 21 psf ground snow load, a 15 psf roof snow load, a 90 mph wind speed, “moderate” weathering and a 12-inch frost line; that table is codified city text of some age, so treat it as a description of the city’s approach rather than a current design figure for your project. Compare it with Cedar City’s 30-inch frost depth.

Repair, restore, or replace

• Repair flashing, boots and storm damage before monsoon season.
• GoNano restoration may suit a sun-aged asphalt roof that is still structurally sound. It is not right for every roof.
• Replacement when the shingles or decking have failed. See roof replacement or restoration in Utah.

Our roof services

• Roof repair
• GoNano roof restoration (for qualifying roofs only)
• Roof replacement
• Storm damage help

Nearby service areas

• Cedar City

See the Washington County entry on our Utah service area list.

Related reading

• why Northern Utah asphalt roofs age faster
• asphalt shingle granule loss in Utah
• roof replacement or restoration in Utah
• roof sealing vs. rejuvenation

St. George is a service area for The NuRoof Guys, not a local office or branch. Call 385-383-8479 and we will tell you whether we can help. Utah Contractor License #14225732-5501. Authorized GoNano installer. Local figures on this page come from the sources below; percentages marked “by our arithmetic” are our calculation from Census tables and are not NuRoof results.

Sources

1. American Community Survey 2020–2024 5-year estimates, tables B25003 (tenure), B25034 and B25035, via Census Reporter
2. U.S. Census Bureau 2024 Gazetteer Files (land area)
3. NOAA NCEI U.S. Climate Normals 1991–2020 (annual/seasonal station files)
4. U.S. EPA, Learn About the UV Index
5. National Park Service, Monsoon Season (Colorado Plateau)
6. Deseret News, “Mother Nature gives Utah taste of her thunderous fury” (July 17, 1996)
7. St. George City Code § 9-10-1, Residential Code Adopted (Table R301.2(1) values)