Knowledge Base

Metal roofing in Florida, answered first

20 articles written for Florida homes, each opening with the direct answer: hurricane wind and product approval, the 25% rule, roof age and insurance, permits, salt air, hail, HOAs and heat.

Weather, Climate & Performance

Does a Metal Roof Keep a Florida House Cooler?

A light-colored aluminum roof with a CRRC-rated Alunar finish reflects more solar energy and re-radiates heat faster than asphalt, which lowers roof surface and attic temperatures on a Florida afternoon. The Florida energy code only mandates cool roofs on low-slope roofs, not steep-slope homes. Attic insulation and ventilation still matter more than the covering for cooling bills.

Salt Air and Metal Roofs on Florida's Gulf and Atlantic Coasts

Salt air corrodes steel and Galvalume roofing by holding a damp chloride film on the metal that acts as an electrolyte. Aluminum contains no iron, cannot rust, and is warranted on both the Gulf and Atlantic coasts when installed with stainless or aluminum fasteners.

Hail on the I-4 Corridor: How a Metal Roof Handles Tampa-to-Orlando Storms

The I-4 corridor between Tampa and Orlando is Florida's hail hotspot, with most events in May and June afternoons and a state record stone of 4.5 inches. The Interlock Slate, Cedar Shingle, Shake and Mediterranean Tile profiles carry a UL 2218 Class 4 impact rating, verified by Intertek for Delta Building Products, and the Guardian warranty covers splitting, cracking and perforation from hailstones up to 1.5 inches. Larger stones can dent the panel without breaching it.

Solar Panels on a Metal Roof in Florida: What to Know First

A metal roof is a strong base for solar in Florida because the roof outlasts the panels, so the array never comes off for a reroof. Attachment to interlocking aluminum profiles is engineered per project, arrays are designed to ASCE 7-22 hurricane wind loads, full retail net metering remains in effect in 2026, and the Guardian warranty excludes only faulty solar installation and accessories that do not properly secure Interlock components.

Florida Climate & Code

How Wind-Rated Is a Metal Roof for Florida Hurricanes?

In Florida a metal roof is not rated by a single mph number. Florida Product Approval NEMO P.E. Evaluated FL7263-R7 documents Interlock aluminum shingle, slate, shake and tile profiles at design pressures from −30 to −187.5 psf by profile and fastening, tested to UL 1897, UL 580 and TAS 125, outside the HVHZ. The Guardian warranty adds 120 mph when installed to manufacturer specification.

Florida's 15-Year Roof Rule (SB 2-D) and What an Aluminum Roof Changes

Under Florida Statute 627.7011(5), added by SB 2-D in 2022, an insurer may not refuse or non-renew a policy solely because of roof age if the roof is under 15 years old. At 15 years and beyond, the homeowner can submit an inspection showing at least five years of remaining life. An aluminum roof under the Guardian Lifetime Limited Material Warranty sits outside that age clock, but insurability is always the carrier's decision.

Florida Product Approval vs. Miami-Dade NOA: What It Means for Your Metal Roof

Florida runs two approval systems for roofing. A statewide Florida Product Approval covers the whole state except the High-Velocity Hurricane Zone; a Miami-Dade Notice of Acceptance (NOA) is required inside it. The HVHZ is Miami-Dade and Broward only. Interlock's NEMO P.E. Evaluated FL7263-R7 is a statewide, non-HVHZ approval, so Metal Roofing Florida does not serve Miami-Dade or Broward.

Wind Mitigation Inspections and Metal Roofs: What Florida Insurers Credit

Florida insurers credit what the OIR-B1-1802 wind mitigation form documents, not the roof material itself. An aluminum roof installed under a permit after 2002 can help on the roof-covering line, but the deck attachment, roof-to-wall connection, roof shape and secondary water resistance lines carry their own weight. Ask your carrier what each line is worth on your policy.

Florida's 25% Roof Rule: When a Repair Becomes a Full Replacement

Under FBC-Existing Building 706.1.1, repairing, replacing or recovering more than 25% of a Florida roof area or section within 12 months means the whole roof or section must be brought to current code. SB 4-D (2022) exempts roofs built or replaced under the 2007 FBC or later, so only the repaired portion must comply. Either way, a reroof permit triggers §553.844 retrofits.

Choosing a Roof

Metal Roof vs. Asphalt Shingles in Florida: Which Survives the Next Hurricane?

Asphalt shingles fail in Florida hurricanes at their free edges, where wind lifts tabs whose seal strips have aged under years of heat and UV. Interlock aluminum panels lock on all four sides with no free edge, are warranted to 120 mph when installed to manufacturer specification, and carry the Guardian Lifetime Limited Material Warranty. Metal costs more up front and can dent; standing seam can oil-can and is not in the Florida approval.

Choosing a Metal Roof Color for Florida Heat: What Matters

In Florida heat, roof color affects comfort through solar reflectance, which the Cool Roof Rating Council measures for each finish as new and after three years of aging. Florida's energy code sets no cool-roof requirement for steep-slope homes, so color is your choice: lighter CRRC-rated finishes reflect more, and a 70 percent PVDF coating holds any color's appearance.

Metal Roof vs. Tile Roof in Florida: Weight, Wind, Cost of Ownership

Concrete and clay tile weigh several times what aluminum does, break under foot traffic, and depend on attachment details at the eave and ridge that fail in hurricane uplift. Aluminum profiles that mimic Mediterranean tile go on shingle-framed Florida homes without structural work, interlock on four sides, and carry the Guardian Lifetime Limited Material Warranty. Tile-only HOA communities are governed by Chapter 720.

Installation & What to Expect

Can You Put a Metal Roof Over Shingles in Florida?

In principle the Florida Building Code, Existing Building, section 706 allows a roof recover over one layer of shingles in some conditions. In practice a permitted Florida reroof almost always becomes a tear-off, because section 553.844 requires deck re-nailing and a secondary water barrier that cannot be done with the old shingles in place, and the 25 percent rule brings the whole roof to current code.

Do You Need a Permit for a Metal Roof in Florida?

Yes. Every reroof in Florida requires a building permit, and the permit triggers section 553.844's deck re-nailing, secondary water barrier and, where applicable, roof-to-wall retrofit. The certified installer pulls it under their own DBPR roofing license, never Metal Roofing Florida. The permit set includes Florida Product Approval NEMO P.E. Evaluated FL7263-R7 for the aluminum profile and the underlayment path under R905.1.1.

Florida Building Code 2026: What Changes for Your Roof Replacement

The Florida Building Code 9th Edition takes effect December 31, 2026. For reroofing it loosens recover rules over sound insulation, codifies elastomeric coatings, and raises Panhandle design wind speeds while leaving the peninsula largely unchanged. The 25 percent rule as amended by SB 4-D remains, and your permit date decides which edition applies.

Getting HOA Approval for a Metal Roof in Florida (Ch. 720)

A Florida HOA may regulate roof material, color and profile under Chapter 720, but it must deny in writing citing the specific governing provision (section 720.3035). Since SB 4-D and HB 293, associations cannot prohibit hurricane-protection items. Aluminum slate, shake and tile profiles usually satisfy architectural review boards.

Costs & Value

My Safe Florida Home Grants and a Metal Reroof: 2026 Guide

My Safe Florida Home gives eligible Florida homeowners a free wind-mitigation inspection and a matching grant of $2 in state funds for every $1 you spend, up to $10,000, for hurricane hardening under s.215.5586, F.S. The grant list covers roof-deck attachment, roof-to-wall connections, secondary water resistance and opening protection, and a metal reroof can be sequenced around it.

Metal Roofing Basics

Where to Buy Metal Roofing in Florida: Manufacturer Programs vs. Suppliers

A Florida homeowner can buy metal roofing three ways: panels from a big-box or farm store, a distributor purchase installed by a contractor the owner finds, or a manufacturer program that assigns a certified installer and backs a single warranty. Each path handles product approval, the reroof permit under 553.844 and installer accountability differently. Miami-Dade and Broward are outside the Interlock program's approval.

Warranties, Myths & FAQs

How Long Does a Metal Roof Last in Florida?

In Florida the answer depends on the metal. Exposed-fastener steel and Galvalume roofs are limited by fastener corrosion, cut-edge rust and coating chalking under salt and UV, often to a couple of decades near the coast. Concealed-fastener aluminum with a PVDF finish cannot rust and has no exposed fasteners, and it carries the Guardian Lifetime Limited Material Warranty.

How to Avoid Roofing Scams After a Hurricane in Florida

After a Florida hurricane, avoid door-knockers offering a free roof. Assignment of benefits is banned for policies issued since January 1, 2023 (s.627.7152(13)), deductible waivers are felony fraud (s.489.147, s.817.234), and every legitimate job starts with your insurer, a license check at myfloridalicense.com, and a written scope.