hail risk · March – June
St. Louis, MO storm damage roofing guide
A bi-state market with separate code authorities on the Illinois side, so confirm which jurisdiction is issuing the permit before you scope. St. Louis County builds to the 2021 IRC with wind design speeds from 90 to 115 mph by zone. Missouri has no matching statute — build full-slope arguments on repairability and shingle availability.
3.1
Hail days/yr
14
Wind days/yr
302K (metro 2.8M)
Population
Recent major storms
- May 16, 2024EF-3 tornado + softball hail across St. Charles County
Code adoption
St. Louis County adopts the 2021 IRC. Wind speed design 90–115 mph by zone.
Confirm with the authority having jurisdiction — local amendments vary inside the metro.
Check these against a first scope
- · Drip edge at eaves and rakes (IRC R905.2.8.5).
- · Starter strip at eaves and rakes per manufacturer instructions.
- · Ice barrier at eaves where the jurisdiction requires it (IRC R905.1.2).
- · Detach and reset of accessory items — vents, gutters, satellite, solar — where the slope is replaced.
Top carriers in St. Louis
- · State Farm
- · American Family
- · Allstate
- · Shelter
Storm-ready tools for St. Louis contractors
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AI hail supplement letters
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Insurance supplement software
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Hail damage roof inspection
How to inspect and document a St. Louis storm loss, photo by photo.
Roof inspection report
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St. Louis storm claim questions
- When is storm season in St. Louis, MO?
- St. Louis's primary peril is hail and the active window runs March – June. The metro averages roughly 3.1 hail days and 14 damaging-wind days per year.
- What building code applies to a re-roof in St. Louis?
- St. Louis County adopts the 2021 IRC. Wind speed design 90–115 mph by zone. Confirm the requirement with the authority having jurisdiction before you finalise a scope — adopting authorities and local amendments vary inside the metro.
- Which code requirements should I check against a St. Louis carrier estimate?
- Drip edge at eaves and rakes (IRC R905.2.8.5). Starter strip at eaves and rakes per manufacturer instructions. Ice barrier at eaves where the jurisdiction requires it (IRC R905.1.2).
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