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Roofing in St. Joseph, Missouri

Hail belt

Yes, a permit is required to replace a roof in St. Joseph, MO, issued by City of St. Joseph Building Development, Building Division. St. Joseph, Missouri sits in one of the country's most hail-prone regions. This hub aggregates St. Joseph's roofing permit and contractor-registration requirements and impact-resistant material options — every fact linked to its sourced directory record.

Roofing permits & building code in St. Joseph

Roofing permit and contractor-licensing rules in St. Joseph are set locally by City of St. Joseph Building Development, Building Division. Missouri has no statewide roofing or general-contractor license, so licensing and registration are handled at the local level — always confirm the current requirements with the authority before starting work.

Roofing permit
Required
Adopted building code
THE CITY'S OWN SOURCES NAME TWO EDITIONS OF THE INTERNATIONAL RESIDENTIAL CODE. City Code Section 7-32(b), as codified through Ordinance No. 3140 (February 2, 2026), adopts "The International Residential Code for One- and Two-Family Dwellings, 2018 edition (2018 IRC), including Appendix B, C, D, E, F, G, H, J, K, M and N" as the residential code, subject to the amendments in Section 7-34. The history line of Section 7-32 ends at G.O. 2865 (July 2, 2018). Section 7-34's history line cites G.O. 3123 (March 17, 2025), and its text still refers to "the 2018 IRC" in its R113.4 amendment. The City's building-codes FAQ also lists the 2018 International Residential Code. The City's Building Development page lists the 2024 International Residential Code among codes in effect for plans submitted as of March 2025, and the Building Permits/Plan Review page says residential plans are reviewed for compliance with the 2024 International Residential Code and the City Code of Ordinances. No ordinance adopting the 2024 edition was opened for this record. Section 7-34 was read in full (items 1 through 17). It amends administration (R101.1, R105.2 deleted, R106.1, R108.2, R108.5, R108.6 added, R112.1, R113.4, R114.2), inserts the City's entries into Table R301.2(1), deletes R313 sprinklers, amends E3902 and E4002, deletes Chapters 12 through 33 and Sections G2413 to G2424, and adds a Chapter 45 on house numbering. It amends nothing in Chapter 9, Roof Assemblies. Because the edition is not settled by the City's own sources, this record gives no edition-dependent answer on drip edge, ice barrier, sheathing or impact rating; call the Building Department at 816-344-5117 to confirm which edition a roof permit is reviewed under.

View the full St. Joseph permitting authority record →

Impact-resistant roofing materials for St. Joseph hail

St. Joseph, Missouri sits in one of the country's most hail-prone regions. For hail exposure, the highest impact rating a roof covering can earn is UL 2218 Class 4. These cataloged material categories reach Class 4:

Class 4 impact-resistant materials

Class 4 Impact-Resistant Shingle Corrugated Metal Panel Metal Shingle Rubber (Polymer) Shingle Standing-Seam Metal Roof Stone-Coated Steel Synthetic Shake Synthetic Slate Synthetic Tile

Browse every option on the Class 4 impact-resistant materials hub, and read the Class 4 impact-resistant shingles buyer's guide. Many insurers offer premium credits for a documented Class 4 roof — confirm terms with your carrier.

Local permitting authority

City of St. Joseph Building Development, Building Divisioncity

Roofing guides

Class 4 Impact-Resistant ShinglesGuide Asphalt vs. Metal vs. TileGuide Wind & Fire RatingsGuide

Sources