Roofing in St. George, Utah

Required

2021 IRC and 2024 IBC, applying statewide by force of state law, with no local adoption needed. Utah Code 15A-2-103(1) incorporates "the 2024 edition of the International Building Code" and, separately, "the 2021 edition of the International Residential Code," and 15A-1-204(1)(a) makes those codes "the construction codes ... that the state and each political subdivision of the state shall follow." Section 15A-1-204(1)(b) extends compliance to an owner "voluntarily engaged in ... the repair, renovation, remodeling, alteration ... or reconstruction of the building," so a reroof is covered. Section 15A-1-204(8) bars a political subdivision from adopting or enforcing anything "more restrictive than, the State Construction Code" on a subject the Code addresses, except "as expressly provided in state law." That express provision is Title 15A Chapter 4, Part 2, which is closed at exactly two named jurisdictions -- Park City (15A-4-206) and Sandy City (15A-4-207) -- and St. George is not one of them, so no codified local IRC amendment applies here. St. George's own Building Department page confirms it is tracking the current state edition rather than an older one, stating that "All design criteria must adhere to the currently adopted building codes, pursuant to Utah's House Bill 65 Construction Code Amendments" -- H.B. 65 (4th Sub.), 2026 General Session, is the act that re-enacted 15A-2-103 effective 2026-07-01 and kept the 2021 IRC. St. George's own adopting or amending ordinance could not be opened this session: both hosts the City's own site links for its municipal code, codepublishing.com/UT/StGeorge and stgeorge.municipal.codes, returned a Cloudflare challenge page rather than content (403 at roughly 5,700 and 95,000 bytes respectively). Separately, Utah Code 65A-8-203(9)(a) (H.B. 48, 2025, effective 2026-01-01) now requires every municipality to adopt and enforce the 2006 Utah Wildland Urban Interface Code in any area it designates wildland-urban-interface under that code, but adoption is not self-executing and no first-party St. George document describing a WUI ordinance or a declared WUI zone was found this session; this record does not assert either way whether St. George has adopted the UWUIC or declared a zone under it. Dated change, read 2026-09-23 in the enrolled bill and in the codified Title 15A Chapter 2: H.B. 41 (2026 General Session, Laws of Utah 2026 Chapter 386) will take effect on January 1, 2027 for Utah Code 15A-2-103, whose Subsection (2) then reads "the Legislature adopts the 2024 edition of the International Wildland-Urban Interface Code, issued by the International Code Council" in place of the 2006 Utah Wildland Urban Interface Code "that may be adopted by a local compliance agency by local ordinance or other similar action as a local amendment". The same act enacts Section 15A-3-1101, which amends that code's Section 302.1 and deletes its Section 602. Section 65A-8-203(9)(c), in its current codified text, provides that where "the state adopts a different wildland urban interface building standard", a county or municipality "has two years from the date the state adopts the different wildland urban interface building standard to adopt the appropriate wildland urban interface building standard." This record does not decide how Subsection (9)(a), which still speaks of an edition of the Utah Wildland Urban Interface Code, reads against the 2027 text, or what the 2024 code requires of a reroof. Where that code does apply, its Section 507 pulls a roof-covering replacement of 25 percent or more within a 12-month period into the new-construction covering rules of Section 503, and the 2006 UWUIC is fire-only: a full count of its 118,402 characters returns zero hits for "UL 2218," "FM 4473," "Class 4," "Class IV," and "hail."