Interlock® aluminum roofing · Made in North America

Metal roofing in Florida.Never re‑roof again.®

Metal Roofing Florida supplies the Interlock® aluminum roof for Florida homes, certifies independent Florida-licensed roofing contractors on it, and assigns one to your project. Aluminum cannot rust in coastal air, the panels lock on all four sides, and the Guardian Lifetime Limited Material Warranty transfers once when you sell.

Request a quote Call 1-866-733-5811

No-obligation request. A certified Interlock installer is assigned to your project and gives you a written proposal under their own license. Miami-Dade and Broward counties are not served.

NEMO P.E. Evaluated FL7263-R7
Florida Product Approval, non-HVHZ
120 mph
wind warranted, when installed to manufacturer specification
1×
transferable Guardian Lifetime Limited Material Warranty
Interlock Slate aluminum roof on a home, product photo
Interlock® SlateProduct photoSee the profiles ↓

The profiles

Heavy-gauge aluminum, in three Florida-approved profiles.

NEMO P.E. Evaluated FL7263-R7 also lists a Hidden Fastener Tile profile.

Compare them side by side

How it works

From request to roof. Five steps.

Metal Roofing Florida supplies the roof and certifies the installer. A certified Interlock installer is assigned to your project, gives you a written proposal, does the work and sets the workmanship terms. The material carries the Guardian Lifetime Limited Material Warranty, issued by Interlock Roofing.

  1. Step 1

    Tell us about your roof

    A minute online, or a call to the toll-free line or the regional line for your area: the age of the roof, the current covering, and what is prompting the change.

  2. Step 2

    A certified installer is assigned

    An independent, Florida-licensed roofing contractor, certified by the manufacturer on this system, is assigned to your project. The installer visits, measures and looks at the deck, because the 25% rule and the fastening schedule both depend on what is actually up there.

  3. Step 3

    The installer's written proposal

    The price, the profile and color, the deck and underlayment work and the schedule, in writing, with the installer's Florida license number on it. The proposal and the contract are between you and the installer.

  4. Step 4

    The installer does the work

    The installer pulls the permit under their own license and installs the roof to the manufacturer's specification and the fastening the approval calls for. Workmanship terms come from the installer.

  5. Step 5

    The Guardian warranty

    Once the installation contract is paid in full, the Guardian Lifetime Limited Material Warranty, issued by Interlock Roofing, covers the material and finish for you, and transfers once when you sell.

How it works · What to check before you sign with any roofer

Built for Florida

Hurricanes, salt air and sun. A roof that cannot rust.

A Florida roof gets design wind speeds from roughly 130 mph in the Panhandle to 170 mph in the far southwest under ASCE 7-22, salt air on both coasts, hail along the I-4 corridor and a cooling season most of the year. Here is what an Interlock® aluminum roof does about each.

Wind

Approved for Florida wind, on the record

Florida Product Approval NEMO P.E. Evaluated FL7263-R7, under the 8th Edition (2023) Florida Building Code, covers the Shingle/Slate, Diamond, Shake and Hidden Fastener Tile profiles, tested to UL 1897, UL 580 and TAS 125, with design pressures from −30.0 to −187.5 psf depending on profile and fastening. The panels lock on all four sides with the fasteners out of the weather. Wind resistance warranted to 120 mph when installed to manufacturer specification.

Salt

Salt air on both coasts. Aluminum has no iron to rust

Every steel panel is cut somewhere. Aluminum contains no iron and cannot rust, at the cut edge or anywhere else. Near salt water, the assigned installer specifies stainless or aluminum fasteners to match.

Hail

The I-4 corridor is Florida's hail belt

Tampa to Orlando, on May and June afternoons, is where Florida's hail falls hardest. The Slate, Cedar Shingle and Shake profiles carry a UL 2218 Class 4 impact rating, verified by Intertek for Delta Building Products: the highest class in the standard. The Guardian warranty covers splitting, cracking and perforation from hailstones up to 1.5 inches.

Heat

Reflective, CRRC-rated colors for a long cooling season

Florida's energy code sets no cool-roof requirement for steep-slope homes, so a reflective color is a choice, not a box to tick. The Alunar® 70% PVDF finish is designed and tested to meet AAMA 2605 and carries a 30-year coating warranty. What shows on a cooling bill depends on the attic insulation and ventilation as much as on the roof, and nobody can promise you a percentage.

Fire

Class A, stated the precise way

Under ASTM E108 the fire classification belongs to an assembly, not to a panel. For this system that reads Class A Fire Rated Available, as a complete assembly, over GAF VersaShield underlayment as evaluated in ICC-ES ESR-2053. Aluminum itself does not ignite.

Insurance

What a metal roof does, and does not, do to your policy

A new roof does not automatically change your premium. Wind-mitigation credits are set by your insurer from the OIR-B1-1802 inspection, so ask your carrier what it would document on your house. Under s. 627.7011(5), an insurer may not refuse or non-renew a policy solely because of roof age while the roof is under 15 years old.

Florida rules worth knowing before you sign

Florida regulates reroofing, roof insurance and HOAs more closely than most states. Four rules decide a lot of roof projects.

The 25% rule

Repair, replace or recover more than a quarter of a roof area or section within 12 months, and the whole roof or section must meet current code (FBC Existing Building 706.1.1). Roofs built or permitted under the 2007 code or later may repair only the damaged portion (s. 553.844, as amended by SB 4-D).

Roof age and your insurer

An insurer may not refuse or non-renew a policy solely because of roof age while the roof is under 15 years old; at 15 years or older you may provide an inspection showing at least five years of remaining life (s. 627.7011(5)).

Wind-mitigation credits

Credits are set by your insurer from the OIR-B1-1802 inspection, not by a roofer or a roof maker. Ask your carrier what the inspection would document on your house.

Your HOA

An association may regulate material, color and profile, but a denial must be in writing and cite the provision (s. 720.3035).

Product figures are the manufacturer's, from the documents linked on this page and at interlockroofing.com ↗

The collection

Three profiles under the Florida approval. All heavy-gauge aluminum.

The look belongs to your home; the performance belongs to the metal. NEMO P.E. Evaluated FL7263-R7 also lists a Hidden Fastener Tile profile for neighborhoods where the tile look is the HOA's rule. Every profile needs a minimum 3/12 roof slope. Standing seam is not part of the Florida product approval and is not offered through Metal Roofing Florida. Solid copper is a separate material: copper roofing.

Interlock Slate roofing, close up
Interlock® Slate

A composed silhouette

Slate

The formal character of quarried slate at a fraction of the weight, in aluminum that cannot rust. Listed in NEMO P.E. Evaluated FL7263-R7 as Shingle/Slate.

Material
Aluminum
Finish
Alunar® 70% PVDF
Warranty
Guardian Lifetime Limited
Request a quote for Slate Specification manual (PDF)

The documents behind every claim on this page

Service area

Florida outside the HVHZ. Five regional lines.

Tampa Bay, Central Florida, the Gulf Coast, the Treasure Coast and the Panhandle. Miami-Dade and Broward counties are not served, because NEMO P.E. Evaluated FL7263-R7 is a non-HVHZ approval, and saying so here beats finding out at permit time. Monroe County is reviewed case by case.

Call the line for your area, or the toll-free line from anywhere in the state, and a certified Interlock installer is assigned to your project.

Toll-free from anywhere in Florida: 1-866-733-5811. Not sure about your address? Ask.

Made in North America

Made in North America. Installed by certified Florida contractors.

Who makes it

Interlock Roofing manufactures the panels in North America: aluminum 3105-H24 / 3003-H24 alloy to ASTM B209, roughly 95% recycled content, finished in the Alunar® 70% PVDF coating system.

Who installs it

An independent, Florida-licensed roofing contractor, certified by the manufacturer on this system and assigned to your project. The installer holds the license, pulls the permit and signs the contract with you.

Who backs it

The manufacturer. The Guardian Lifetime Limited Material Warranty covers the material and finish for the original purchaser while they own the home and transfers once; the second owner is covered to 50 years from substantial completion.

Straight answers

What Florida homeowners ask first.

All of the answers ↗

Who installs the roof?

An independent, Florida-licensed roofing contractor, certified by the manufacturer on the Interlock® system and assigned to your project. Metal Roofing Florida supplies the roof but does not install it; the roof carries the Guardian Lifetime Limited Material Warranty, issued by Interlock Roofing. The installer pulls the permit under their own license and contracts with you directly. Certified means certified by the manufacturer, not by the state.

Is the Interlock roof approved for Florida?

Yes, outside the High-Velocity Hurricane Zone. Florida Product Approval NEMO P.E. Evaluated FL7263-R7 under the 8th Edition (2023) Florida Building Code covers the Shingle/Slate, Diamond, Shake and Hidden Fastener Tile profiles, tested to UL 1897, UL 580 and TAS 125, with design pressures from −30.0 to −187.5 psf depending on profile and fastening. Standing seam is not part of the approval.

Are Miami-Dade and Broward counties included?

No. Miami-Dade and Broward counties are in the High-Velocity Hurricane Zone, and NEMO P.E. Evaluated FL7263-R7 is a non-HVHZ approval, so they are not served. Monroe County is reviewed case by case. The rest of Florida is served.

Can only the worn section of my roof be replaced?

It depends on the roof. Florida's 25% rule (FBC Existing Building 706.1.1) requires the whole roof or section to meet current code when more than a quarter of it is repaired, replaced or recovered within 12 months. SB 4-D amended s. 553.844 so that a roof built or permitted under the 2007 code or later may repair only the damaged portion. The assigned installer and your building department decide which case applies.

Will a metal roof lower my insurance?

Ask your carrier. Wind-mitigation credits are set by your insurer, based on what the OIR-B1-1802 inspection documents on your house. Under s. 627.7011(5), an insurer may not refuse or non-renew solely because of roof age while the roof is under 15 years old; at 15 years or older, you may provide an inspection showing at least five years of remaining life.

Can my HOA stop a metal roof?

A Florida HOA (Chapter 720, F.S.) may regulate roof material, color and profile, but a denial must be in writing and cite the governing provision (s. 720.3035). The slate, shingle and shake profiles exist so the roof can match the look an association expects.

No obligation

Let's plan your last roof.

Tell us about your roof. A certified Interlock installer for your part of Florida is assigned to your project: a visit, a written proposal under their own license, and no pressure from anyone.

Request a quote Call 1-866-733-5811

No-obligation request · Florida outside the High-Velocity Hurricane Zone · Miami-Dade and Broward counties are not served

Lifetime refers to the Guardian Lifetime Limited Material Warranty, issued by Interlock Roofing: material and finish, for as long as the original purchaser owns the home, transferable once, workmanship excluded (the installing contractor warrants the workmanship). Warranty details

Interlock® roofing sign: request a quote