Metal Roofing Products

Interlock® Mediterranean Metal Tile Roofing: Lifetime Aluminum, Lightweight Clay Tile Look

Interlock Mediterranean tile roofing delivers the iconic look of traditional clay tile at a fraction of the weight — no structural reinforcement required.

Discover Interlock Mediterranean Metal Tile Roofing — engineered to last the lifetime of your home with zero maintenance and a Lifetime Transferable Warranty.

TL;DR Summary

Interlock® Mediterranean Metal Tile Roofing delivers the curved barrel-tile profile of traditional clay roofing at 70 lbs per square — approximately 96% lighter than concrete or clay tile (500–1,200 lbs/sq) — enabling retrofit without truss modification. 0.028″ aluminum panel with concealed fasteners, 18″ horizontal exposure, 1.2″ profile height, UL 2218 Class 4 hail, 120 mph warranted wind, ICC-ES ESR-1790.

Overview

What Is Mediterranean Metal Tile Roofing?

Interlock® Mediterranean Metal Tile Roofing delivers the curved barrel-tile profile of traditional clay roofing at 70 lbs per square — approximately 96% lighter than concrete or clay tile — enabling significant structural cost savings on new construction and making retrofit over existing roofing feasible without truss modification. The 0.028" aluminum hidden fastener panel features an 18" horizontal exposure, 15" tile step, and 1.2" profile height. Rated Class 4 under UL 2218, warranted to 120 mph wind resistance, and backed by the Guardian Lifetime Limited Non-Prorated Material Warranty, it carries ICC-ES ESR-1790 and Florida Product Approval FL7263.

Conventional clay and concrete tile at 900–1,200 lbs per square requires engineered truss systems and makes retrofit structurally impractical without significant reinforcement expenditure. At 70 lbs per square, Interlock Mediterranean Metal Tile resolves both: new builds specify standard residential truss loads; retrofits install over existing roofing with optional strapping — no structural modification required. Concealed fasteners preserve authentic tile aesthetics while providing full thermal expansion clearance. For projects in Florida, the Gulf Coast, the Southwest, and California, it delivers the region's expected roof profile at a lifecycle cost clay and concrete cannot approach.

In insurance markets where hail-susceptible clay tile carries elevated premium classifications, Interlock Mediterranean Metal Tile's Class 4 UL 2218 rating and ductile aluminum construction represent documentable risk reduction for homeowner and insurer alike. Its 120 mph warranted wind resistance provides verified performance in high-wind regions where wind uplift documentation is mandatory. The transferable Guardian Lifetime Limited Non-Prorated Material Warranty communicates its value in any real estate transaction or building inspection. For the tile roofing market, no competing product matches its combination of authentic profile, structural weight reduction, storm performance, and lifetime warranty coverage.

Who It's For

Mediterranean Metal Tile Roofing for Every Professional

Interlock Mediterranean Metal Tile Roofing brings the iconic barrel-profile aesthetic of Spanish and Italian clay tile to your home — at a fraction of the weight and without the fragility. Clay tile can exceed 900 lbs per square and requires substantial structural reinforcement. Interlock aluminum tile weighs just 70 lbs per square, making it structurally compatible with virtually any residential construction. Finished with the Alunar® 5-layer fluorocarbon coating, each hidden-fastener panel resists UV degradation, salt spray, moisture, and hail impact (UL 2218 Class 4). Wind resistance to 120 mph is warranted under the Guardian Lifetime Limited Non-Prorated Warranty. If you love the Mediterranean aesthetic but not the cost, weight, or fragility of clay, Interlock delivers the look you want — built to last a lifetime.

Interlock Mediterranean Metal Tile is specified under CSI MasterFormat Section 07 41 13 (Metal Roof Panels). The 0.028-inch aluminum alloy panel (3003-H24 or 3105-H24 per ASTM B209) installs at 70 lbs per square — a fraction of clay tile's 850–1,200 lbs per square — eliminating structural reinforcement in standard residential construction. Hidden fastener system; 18" weather exposure; 1.2" profile height; 15" tile step. The Alunar® 5-layer fluorocarbon coating system meets ASTM D-4214-07 and ASTM D-2244-16 standards. ICC-ES ESR-1790 and Florida Product Approval FL7263-R7 (NON-HVHZ) are applicable. Minimum slope: 3:12 with I&W underlayment; 4:12 with synthetic underlayment. Class A fire rating available per ESR-1790 §4.4. UL 2218 Class 4 impact. Wind warranted to 120 mph under the Guardian Lifetime Limited Non-Prorated Warranty. 30-year coating warranty.

Interlock Mediterranean Metal Tile installs as a hidden fastener system — no exposed screws, no sealants, no loose clips to manage on-site. Each panel is formed with an 18" weather exposure, 15" tile step, and 1.2" profile height that replicates classic barrel tile geometry. At 70 lbs per square, standard residential decking is structurally adequate with no reinforcement required. The system installs over standard felt or synthetic underlayment at minimum 4:12 slope, or ice-and-water at 3:12. No special tools are required beyond a standard sheet metal installation kit. Panels interlock on all edges for complete self-alignment during installation. ICC-ES ESR-1790 and FL7263-R7 (NON-HVHZ) govern code compliance. Detailed installation sequences, fastening schedules, starter courses, and hip/ridge cap details are covered in Interlock's certified installation documentation.

KEY ADVANTAGES

The Interlock Mediterranean Metal Tile Roofing Advantage

Lifetime Transferable Warranty

Every Interlock installation is backed by a Lifetime Transferable Warranty — the strongest warranty in the roofing industry. Coverage can be transferred one time to the next owner (a $300 transfer fee applies), adding documented value at resale.

Class 4 Impact Resistance

Achieves the highest UL 2218 impact rating — Class 4 — verified by the standard’s most demanding 2-inch steel-ball impact test. Many insurers offer premium discounts for Class 4 rated roofing.

Class A Fire Resistance available

Class A fire rating available under ASTM E108 — the highest fire resistance classification, subject to proper underlayment and installation. Superior protection compared to asphalt shingles and untreated wood profiles.

120 MPH Wind Resistance

Interlock’s concealed clip-fastening system locks every panel to the roof deck and to the panels around it, with no exposed fasteners that can loosen or back out over time. The system is warranted against wind uplift to 120 mph and tested to ASTM D3161 Class F, while the interlocking design lets panels expand and contract with temperature swings without breaking the weather seal — so the roof is built to stay secure through the high winds and seasonal storms common across North American climates.

Energy-Efficient Aluminum

Aluminum reflects solar radiation and releases heat rapidly at night, reducing cooling loads and summer energy costs compared to dark asphalt roofing materials.

Low Lifetime Maintenance

No painting, sealing, granule replacement, or re-nailing — ever. Occasional debris rinsing is all that is required. Eliminate roof maintenance from your budget permanently.

AAMA 2605 Certified Coating System

The Alunar® Coating System

Every Interlock Mediterranean Metal Tile panel is factory-finished with the proprietary Alunar® Coating System — a 5-stage molecular bonding process engineered to the most demanding performance standards for architectural coatings in North America. At its core, Alunar uses a 70% polyvinylidene fluoride (PVDF) fluoropolymer resin system — the same chemistry trusted by monumental and commercial building projects across the continent. Unlike painted steel or granule-coated asphalt products, PVDF fluoropolymer chemistry does not fade, chalk, peel, or blister. Color stability is independently verified to ASTM D-4214-07 (chalk resistance) and ASTM D-2244-16 (color retention) — requiring less than 5 Delta E units of color change after a decade of continuous UV exposure. Your roof’s color is not applied to the surface — it is bonded into it. That is the difference between a finish that lasts 20 years and one that lasts a lifetime.

Layer 1 — Alunar® Coating System (PVDF Top Coat)

The outermost layer is Interlock’s proprietary Alunar fluoropolymer finish — formulated with 70% polyvinylidene fluoride (PVDF) resin and independently verified to ASTM D-4214-07 for chalk resistance and ASTM D-2244-16 for color retention. This layer delivers color stability confirmed to less than 5 Delta E color change after ten years of continuous UV exposure. It is the permanent face of your roof.

Layer 2 — Primer Base Coat

A precision-applied primer layer bonds directly to the treated aluminum surface, creating the adhesion foundation that locks every subsequent layer in place. This primer is the structural bridge between the metal substrate and the PVDF color system — without it, no coating chemistry performs to specification.

Layer 3 — Conversion Coating

A chemical conversion treatment restructures the aluminum surface at the molecular level — transforming it from a passive metal into an active bonding substrate. This layer is critical to corrosion resistance and long-term coating adhesion, and is what separates an architectural-grade finish from a standard painted surface.

Layer 4 — Alkaline Cleansed

Before any coating is applied, each aluminum panel undergoes a multi-stage alkaline cleaning process that removes surface oxides, mill oils, and microscopic contaminants. This step is non-negotiable — surface cleanliness at this stage directly determines the lifespan of every layer above it.

Layer 5 — Aluminum Substrate

The structural foundation of every Interlock Mediterranean Metal Tile panel — 3105-H24 aluminum alloy, selected for its superior formability, corrosion resistance, and long-term dimensional stability. At 70 lbs per square, it delivers the mass profile of a premium tile product at a fraction of the weight of concrete or clay tile — requiring no structural reinforcement on standard roof framing.

Layer 6 — Back Coat

An applied protective coating on the underside of every panel guards against moisture infiltration, condensation, and galvanic corrosion from below. Most roofing products leave the back face uncoated. Interlock does not — because a lifetime warranty requires protection on all six sides of the panel.

INDUSTRY EXPERT TESTIMONIAL

Why a 48-Year Metal Roofing Coatings Veteran Endorses Interlock®

Robert Scichili · President, Robert Scichili Associates, Inc.
· 21 years Desoto · 10 years Morton International · 6 years BASF · 10 years 3M

In my 48 years of experience in the metal roofing industry (21 years with Desoto, 10 years with Morton International, 6 years with BASF and 10 years with 3M), it is most unique to find a company who is constantly striving to provide roofing products that live up to claims that are being made to customers. From the very moment the Interlock Roofing System is applied to a home the customer experiences excellent installation and a very unique surface design all applied to the finest metal available. All these are provided with the promise of great durability and sustainability and a low maintenance roofing system. The use of Alunar(r) Coating Systems, which have a superior record of color fastness, chalk resistance and literal fusion like adhesion is the finest coating system anyone can provide.

Independent testimonial from an industry expert. Robert Scichili is President of Robert Scichili Associates, Inc. (Richardson, TX) and Principal Partner at RSK Avanti Partners LLC — a strategic marketing, sales, and technical development consultancy for the metal construction and architectural coatings industries. He previously served as Business Development Manager for the Industrial Coatings Division at BASF Corporation, where he led market positioning for the Ultra-Cool reflective coatings line. Robert is a founding Board Member of the Cool Metal Roofing Coalition and a published authority on Energy Star, LEED, and cool metal roofing technologies. His 48-year career in industrial coatings spans Desoto, Morton International, BASF, and 3M.

Technical Data

Product Specifications

Specification	Details
Base Material & Alloy Specification	Aluminum alloy 3003-H24 or 3105-H24 per ASTM B209; hidden fastener system
Panel Gauge & Nominal Base Thickness	0.028" (0.71 mm) nominal base thickness
Installed Weight Per Square	70 lbs per 100 sq ft (dry or wet) — approx. 96% lighter than concrete or clay tile
Hail Impact Resistance Rating	Class 4 — UL 2218
Fire Resistance Rating	Class A fire rating available (requires GAF Versashield Fire-Resistant Roof Deck Protection per ICC-ES ESR-2053; self-adhered underlayment = non-classified assembly)
Wind Speed Resistance — Manufacturer Warranted	120 mph (193 kph) — warranted per manufacturer's installation procedures
Surface Coating System & Finish Warranty	Alunar® Coating System — 5-layer fluorocarbon finish; 30-year coating warranty (no chalk >8 ASTM D-4214-07; no color change >5 ΔE ASTM D-2244-16)
Panel Size, Weather Exposure & Coverage Geometry	Panel width: 21½"; Horizontal exposure (coverage): 18"; Tile step: 15"; Module width: 9"; Profile height: 1.2"; concealed fasteners
Material Warranty Program Name	Guardian Lifetime Limited Material Warranty — one-time transferable
Warranty Duration, Ownership Terms & Transferability	Lifetime for original registered owner (individual); 50 years from Substantial Completion for organizations or upon transfer to 2nd owner ($300 transfer fee)
Recycled Content & End-of-Life Recyclability	Aluminum is 100% recyclable at end of life
Cool Roof Energy Rating & Third-Party Certification	Cool Roof rated — CRRC (Cool Roof Rating Council) and ORNL (Oak Ridge National Laboratories) tested
CSI MasterFormat Division & Section Reference	07 41 13 — Metal Roof Panels

Available Colors

Color Options

Interlock Metal Tile is available in eight architect-curated colors in heavy gauge aluminum — each permanently bonded through the Alunar® PVDF fluoropolymer coating system, certified to AAMA 2605, the most demanding color performance standard in North American architecture. Unlike paint-over-steel or granule-coated products that fade, chalk, or shed over time, Alunar’s 70% PVDF resin chemistry is backed by a 30-year color warranty — guaranteeing chalk resistance no worse than a numerical rating of 8 per ASTM D-4214 and color change no greater than 5 Hunter ΔE units per ASTM D-2244. That is not a marketing claim — it is a measured, testable, warranted performance threshold. For projects demanding the ultimate in prestige and material authenticity, Interlock Metal Tile is also available in solid copper — a ninth option that develops a natural living patina unique to every installation. Whether you select a factory-finished aluminum color or the timeless warmth of solid copper, every panel is backed by Interlock’s Lifetime Transferable Warranty. Contact your local Interlock dealer to request a physical color sample and full specification sheet.

Material Comparison

Mediterranean Metal Tile Roofing vs. Asphalt Shingles vs. Clay / Concrete Tile

How does Interlock Mediterranean Metal Tile Roofing compare on the metrics that matter most? Review the key performance differences below.

Specification	Interlock Mediterranean Metal Tile Roofing	Asphalt Shingles	Clay / Concrete Tile
Lifespan	Lifetime (50+ years)	15-25 years	50-100+ years (clay) / 30-50 years (concrete)
Weight	70 lbs/square	250-350 lbs/square	500-1,000 lbs/square
Fire Rating	Class A	Class A (with mat)	Class A (non-combustible)
Warranty	Lifetime Transferable	20-30 year limited	Limited or none
Maintenance	Low maintenance	Periodic inspection	Regular maintenance

Environmental Performance

Sustainability & Energy Efficiency

Interlock Mediterranean Metal Tile is manufactured from aluminum — one of the most sustainable structural building materials available — and installs at just 70 lbs per square, eliminating the energy-intensive structural reinforcement required by conventional clay or concrete tile. Aluminum is 100% recyclable at end of life with no material quality degradation, and Interlock panels contain a high percentage of post-industrial recycled content. Its permanent service life eliminates the repeated manufacturing and landfill cycles of conventional tile replacement. For architects and homeowners committed to sustainable design, Interlock Mediterranean Metal Tile delivers measurable lifecycle environmental performance without aesthetic compromise.

Interlock Metal Tile may contribute to LEED v4 credits under Materials & Resources (MR) — Recycled Content, and Energy & Atmosphere — Enhanced Energy Performance. Contact your Interlock dealer for LEED documentation support.

Verified Customer Reviews

What Homeowners Say About Interlock Metal Roofing

This is the 3rd roof I have had put on by Interlock Roofing. I put one on my original house, my cottage, and now my new house. They have always done an excellent job, and the aluminum shingles are a great product — light, sturdy, and good-looking, even years down the road.

Bruce M.Wakefield, MA

We had our roof replaced in 2017 with an aluminum roof by Interlock Metal Roofing. We live on the lake, and prior to the replacement, we were spending thousands of dollars every year as the shingles used to fly away in the wind. We have never had any problems in the last 9 years. We had a great experience with Interlock Metal Roofing. They were very professional and did a beautiful job, although it was difficult as our roof is quite high. Our roof is still beautiful, and we have never had a worry about it.

Beena M.Sudbury, ON

I LOVE MY INTERLOCK ROOF! No more climbing up there to clean it off, no more gritty stuff falling into my garden after a few years. It looks fabulous and does what it's supposed to! And then there are the installers: knowledgeable, attentive to detail, and personable. Ivan is a gem! He attended to the addition of a small bit of flashing efficiently and cleaned the whole roof with a blower in short order. After almost ten years, it's STILL the only roof I would choose!

Sue Lyn T.Corvallis, OR

FAQ

Mediterranean Metal Tile Roofing — Frequently Asked Questions

How long does mediterranean metal tile roofing last?

Interlock Mediterranean Metal Tile Roofing is backed by a Lifetime Transferable Warranty, designed to outlast the structure it covers. Unlike asphalt shingles that require replacement every 15-25 years, Interlock aluminum panels resist corrosion, impact, and freeze-thaw cycling without degrading.

How much does mediterranean metal tile roofing cost?

Interlock Mediterranean Metal Tile Roofing is premium-priced relative to asphalt and is cost-competitive with real clay or concrete tile when full installation, structural reinforcement, and lifetime replacement costs are considered. Clay tile installations frequently require structural upgrades to support 850–1,200 lbs per square. At 70 lbs per square, Interlock eliminates that added cost entirely. Contact an authorized Interlock installer for a project-specific quote. Over 50 years, Interlock delivers superior financial return through eliminated replacements, zero maintenance costs, and avoided structural reinforcement expenses.

Is mediterranean metal tile roofing energy efficient?

Yes. Interlock aluminum panels reflect solar radiation and release absorbed heat rapidly after sunset, reducing attic temperatures and HVAC cooling loads compared to dark asphalt shingles. Most homeowners report measurable reductions in summer cooling costs.

What maintenance does mediterranean metal tile roofing require?

Virtually none. No painting, sealing, re-granulating, or re-nailing is ever required. Occasional rinsing to remove debris from valleys is all that is typically needed. Interlock eliminates roof maintenance from your annual budget.

How heavy is mediterranean metal tile roofing?

Interlock aluminum panels weigh approximately 40-50 lbs per square (100 sq ft). This is a fraction of the weight of concrete tile (900+ lbs/sq) and natural slate (800-1,500 lbs/sq), making Interlock suitable for virtually any standard residential roof structure without structural reinforcement.

Can Interlock roofing be installed over my existing roof?

In many cases, yes — Interlock aluminum roofing can be installed over existing asphalt shingles without full tear-off, depending on local building codes, deck condition, and current roof layer count. Your authorized Interlock installer will conduct a decking inspection to confirm eligibility. Installing over existing roofing eliminates tear-off labor and disposal costs, reducing overall project expense. Where tear-off is required — due to soft decking, rot, or code restrictions on roof layers — Interlock installers manage the full removal process. Either way, the result is a permanent roofing system that will never need to be removed or replaced.

Does Interlock roofing qualify for home insurance discounts?

Yes — in many regions, Interlock aluminum roofing’s UL 2218 Class 4 hail impact rating and 120 mph warranted wind resistance qualify homeowners for significant insurance premium reductions. Discount amounts vary by insurance carrier and jurisdiction, but Class 4 impact-rated roofing consistently triggers meaningful savings in hail-prone markets across North America. Contact your insurance provider to confirm available discounts before installation. Many homeowners find that insurance savings offset a meaningful portion of the installation cost premium within the first 10–15 years of ownership.

What colors is Interlock Mediterranean Metal Tile available in?

Interlock Mediterranean Metal Tile Roofing is available in nine standard colors: Solid Copper, Copper Penny, Hunter Green, Black, Deep Charcoal, Musket Grey, Tile Red, Colonial Brown, and Tudor Brown. All colors are finished with the Alunar® 5-layer fluorocarbon coating system, providing PVDF-grade color stability backed by a 30-year coating warranty per ASTM D-4214-07 and ASTM D-2244-16. Colors complement a full range of architectural styles and exterior palettes. Contact your authorized Interlock installer or visit the Interlock color selector to view samples in your regional lighting conditions before finalizing your selection.

Is Interlock Mediterranean Metal Tile fire rated?

Yes. Interlock Mediterranean Metal Tile panels are available in a Class A fire-rated assembly — the highest rating achievable under UL and ICC standards. Class A requires installation with GAF Versashield fire-resistant underlayment per ICC-ES Evaluation Report ESR-2053, in combination with the Interlock panel system per ESR-1790. Note: installation with self-adhered underlayment results in a non-classified fire assembly. Specify GAF Versashield when Class A fire rating is required by code or insurance. Confirm your underlayment specification with your authorized installer before project commencement.

Can the Interlock warranty be transferred to a new owner?

Yes. The Guardian Lifetime Limited Non-Prorated Material Warranty is transferable once to a subsequent owner. Original individual owners hold a lifetime warranty; organizations and subsequent individual owners hold a 50-year non-prorated warranty. A transfer fee of $300 applies, and transfer must be registered with Interlock Roofing within the required notification period. A documented Interlock roofing system with an active warranty adds measurable, verifiable value in real estate transactions. Contact Interlock Roofing directly to initiate the transfer process.

AT A GLANCE

Key Takeaways

• Barrel-tile Mediterranean profile at 70 lbs/sq vs 500–1,200 lbs/sq for clay or concrete — ~96% weight reduction.
• 0.028″ (0.71 mm) aluminum alloy 3003-H24 or 3105-H24 per ASTM B209; hidden fastener system.
• Panel width 21½”; horizontal exposure 18″; tile step 15″; module width 9″; profile height 1.2″.
• UL 2218 Class 4 hail (vs clay tile’s documented fracture under hail impact); Class A fire assembly available.
• 120 mph warranted wind — engineered for hurricane-zone Florida, Gulf Coast, and Southwest markets.
• AAMA 2605 Alunar® PVDF coating — 30-year chalk-and-fade warranty; Cool Roof rated.
• ICC-ES ESR-1790, FL7263-R7; CSI MasterFormat 07 41 13 (Metal Roof Panels).

Sample ID	Heading 1	Heading 2
70 LBS / SQ — 96% lighter than clay tile	UL 2218 CLASS 4 hail	120 MPH warranted wind	ICC-ES ESR-1790 evaluated

Profiles

Explore Other Interlock Roofing Profiles

Interlock® Metal Slate Roofing

Interlock® Metal Slate Roofing is a lifetime aluminum roofing system that replicates the dimensional beauty of natural quarried slate at a fraction of the weight. Manufactured by Interlock® from heavy-gauge, rust-proof aluminum with a true 4-way interlocking design, it delivers slate's timeless curb appeal — ideal for Colonial and Victorian homes — without the cracking, structural load, or reinforcement costs of real stone. Finished with the reflective Alunar® Coating System for cool-roof energy savings and backed by a transferable Lifetime Limited Warranty.

NEXT STEPS

Free, No-Obligation Interlock® Consultation

Every Interlock® consultation is free and carries no obligation — for homeowners, architects, and roofing contractors alike. Contact Interlock and a certified local sales representative from your exclusive Interlock® dealer will reach out to schedule a Zoom call, office meeting, or in-home consultation. The conversation walks through profile selection, technical installation requirements (slope, venting, underlayment, fasteners, trim, snow management, solar), and project-specific pricing — in that order, never the reverse.

For homeowners →

Review profile options, color samples, and the Guardian Lifetime Transferable Warranty applied to your specific home.

For architects →

Walk through CSI MasterFormat 07 31 16 / 07 41 13 specifications, ICC-ES ESR-1790 documentation, and assembly options for your project submittal.

For roofing contractors →

Discuss certified-installer territory, training, technical support, and warranty registration through the Interlock® dealer network.

ABOUT THE AUTHOR

Scott Plumptree — Media Manager, The Interlock Group

Scott brings 30+ years of integrated marketing and media experience to Interlock Roofing, spanning SEO, PPC, social media, lead generation, broadcast TV, print, editorial, web, photography, and 3D animation — along with deep expertise in AI search optimization (AEO, GEO, and LLM visibility). His work bridges creative production and performance marketing, helping homeowners find clear, trustworthy answers about protecting their biggest investment: their home.

30+ years · SEO · AEO · GEO · LLM · PPC · Social Media · Lead Generation · Broadcast TV · Print · Web · Editorial · Photography · 3D Animation

Email: scott@interlockgroup.com

Linkedin: https://www.linkedin.com/in/plumptree/

Last modified: May 25, 2026 8:54 pm