tornado risk · March – May (and November)
Birmingham, AL storm damage roofing guide
Dixie Alley tornado risk gives Birmingham two storm seasons, March through May and again in November. The metro builds to the 2015 IRC with Alabama amendments and a 115 mph wind design speed. Tornado losses arrive as mixed wind and debris damage, so decking, ridge and hip, and code-required underlayment are the line items to check against a first scope.
2.6
Hail days/yr
13
Wind days/yr
197K (metro 1.1M)
Population
Recent major storms
- March 25, 2024EF-2 tornado across Jefferson County
Code adoption
Birmingham adopts the 2015 IRC with Alabama amendments. Wind speed design 115 mph.
Confirm with the authority having jurisdiction — local amendments vary inside the metro.
Check these against a first scope
- · Full fastening pattern required by the manufacturer for this wind design speed.
- · Ridge and hip cap replacement, not re-use.
- · Underlayment replacement where the deck is exposed (IRC R905.1.1).
- · Detach and reset of accessory items — vents, gutters, satellite, solar — where the slope is replaced.
Top carriers in Birmingham
- · Alfa
- · State Farm
- · Allstate
- · USAA
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Birmingham storm claim questions
- When is storm season in Birmingham, AL?
- Birmingham's primary peril is tornado and the active window runs March – May (and November). The metro averages roughly 2.6 hail days and 13 damaging-wind days per year.
- What building code applies to a re-roof in Birmingham?
- Birmingham adopts the 2015 IRC with Alabama amendments. Wind speed design 115 mph. 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 Birmingham carrier estimate?
- Full fastening pattern required by the manufacturer for this wind design speed. Ridge and hip cap replacement, not re-use. Underlayment replacement where the deck is exposed (IRC R905.1.1).
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