Clay County, FL Hurricane Preparedness: Roof Standards (2026)
Key Facts
- Higher wind zone
- 110 mph along State Road 15/US 17, § 6-6(a)
- Lower wind zone
- 100 mph along entire western county line, § 6-6(b)
- Source standard
- Florida Building Code Figure 1609, § 1609.3
- State authority
- Ch. 2000-141, Laws of Florida, § 109(3)
- Last amended
- Ordinance No. 2007-67
Summary
Clay County sets two hurricane wind-speed design zones under section 6-6 of the Code, tracking the Florida Building Code's wind maps: a 110 mph line along State Road 15/U.S. 17 and a 100 mph line along the county's entire western boundary, dictating the wind loads roofs and other structural elements must be engineered to resist.
With respect to Figure 1609 referred to in Section 1609.3 of the Florida Building Code, the following wind speed lines applicable to Clay County, Florida, are hereby established pursuant to the requirements of Section 109(3) of Chapter 2000-141, Laws of Florida: (a)The 110 mph wind speed line shall lie co-extensive with the centerline of State Road 15, also known as U.S. Highway 17, said centerline running south from its intersection with the border common to Clay County and Duval County to its intersection with the border common to Clay County and Putnam County; and(b)The 100 mph wind speed line shall lie co-extensive with the entire westerly boundary of Clay County, said boundary running south from the Duval County line at the northwest corner of Clay County to the Putnam County line at the southwest corner of Clay County.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 86).
Full Breakdown
3 of the Florida Building Code by drawing two local wind speed lines, adopted under the authority of Section 109(3), Chapter 2000-141, Laws of Florida. S. Highway 17), from the Duval County line south to the Putnam County line. The 100 mph wind speed line runs along the entire western boundary of Clay County, from the Duval County line at the northwest corner to the Putnam County line at the southwest corner. Everything between those two lines and east of the 110 mph line falls under the higher design wind speed, meaning permitted construction, including roof covering, sheathing attachment, and uplift-resistant fastening required by the Florida Building Code, must be engineered and inspected to the applicable speed for its location rather than a single countywide number.
Building permit applications reviewed under Article II of Chapter 6 (sections 6-36 through 6-46) must meet the technical standards of the Florida Building Code as adapted by these locally drawn wind speed lines before the county's building official issues a permit. The ordinance was originally adopted in 2001 and amended in 2007 to its current boundaries.
Violations & Fines
Constructing or reroofing a structure without a permit that reflects the correct wind speed line for its location violates the permit and technical-standards requirements of Article II of Chapter 6, and section 6-5 sets the general penalty for violations of the county's building chapter: a fine of up to $500.00 per offense, with each day of noncompliance a separate violation, plus the county's authority to pursue civil remedies including a stop-work order under section 6-4.
Frequently Asked Questions
What wind speed must a roof in Clay County be built to withstand?
Where exactly is the 110 mph line?
Does this ordinance set roof shingle or material standards directly?
Sources & Official References
Other rules in Clay County
Florida rules heatmap·Compare Clay County to another location·View the Florida hurricane preparedness overview
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