Metal Roofing in Westmoreland, Florida — Lifetime Interlock® Aluminum Shingles Installed Locally

Aluminum roofing cannot rust because aluminum contains no iron—the element that oxidizes and causes rust in steel. When aluminum is scratched or exposed, it naturally forms a microscopic oxide layer that self-heals, protecting the metal underneath. In Westmoreland's subtropical climate with about 1199 mm of annual rainfall and humidity that encourages corrosion, this is a decisive advantage. Interlock's roofing-grade 3105-H24 and 3003-H24 aluminum alloy (ASTM B209) is paired with a Alunar 70% PVDF fluorocarbon coating on both sides, warranted for 30 years against chalking and fading. You get two layers of corrosion defense built in.

Yes. Interlock's aluminum panels carry a UL 2218 Class 4 impact rating—the highest available—and the Guardian Warranty covers perforation from hailstones up to 1.5 inches. That's meaningful protection in a climate where wind gusts can reach 142 km/h and severe weather is part of Westmoreland's seasonal pattern. Many insurers recognize this impact resistance and offer premium discounts for Class 4 roofs. Contact your agent with the UL 2218 certification; several major carriers explicitly reduce rates for this rating. Unlike asphalt or wood, aluminum resists impact fatigue—it doesn't weaken after multiple hail events.

Interlock's four-way interlocking aluminum panels are warranted to resist wind speeds up to 120 mph (193 km/h) when installed to specification. Westmoreland experiences typical daily-max winds around 16 km/h with gusts reaching 142 km/h, well within the roof's proven performance envelope. The four-way interlock design—each panel locks to its neighbors on all four sides—distributes wind load across the entire roof assembly rather than relying on fasteners alone. The roof is code-compliant under Florida Product Approval FL7263-R7 (8th Edition 2023 Florida Building Code), tested to UL 580 and UL 1897 wind uplift standards. That's the same engineering used on coastal installations from salt-air homes to Antarctic research stations.

Metal roofs with reflective coatings actively reduce heat absorption. Interlock's energy-efficient colors achieve initial solar reflectance up to 0.55 (Aged Copper Penny) and thermal emissivity of 0.84, meaning they reflect the heat that asphalt absorbs and shingles trap. In a region with about 3539 annual sunshine hours, that reflectance translates to measurable cooling savings. Cool Roof Rating Council testing confirms the performance. While a single roof doesn't change climate, the reduction in radiant heat gain—especially in the afternoon—lowers your air-conditioning load. The lighter color options pay for themselves faster in high-sun areas; darker finishes still outperform asphalt by redirecting energy away from the interior.

No structural reinforcement is needed. Interlock's aluminum Tile profile weighs about 0.59 lb/sq ft—approximately 96% lighter than concrete or clay tile—while the Shingle runs about 0.41 lb/sq ft. Your home's existing frame already carries the weight of current roofing, weather, and snow load. In Westmoreland, where freeze-thaw days average only about 3 per year and snow is essentially zero, structural demands are minimal compared to northern climates. This lightweight advantage means Interlock installs directly over most existing roofs, eliminating costly tear-off and disposal. The Guardian Warranty covers the installation on your current structure, and the ICC-ES evaluation report (ESR-1790, reissued 2025) confirms compliance with building codes for your climate zone.

Interlock's Guardian Warranty is a lifetime limited, non-prorated material warranty for the original owner—covering rusting, rotting, splitting, cracking, curling, and loss of impact resistance. The roof has been manufactured since 1998, with installations in climates from coastal salt air to Antarctic research stations. That's 26+ years of real-world data. For resale value, the warranty is transferable one time, extending 50 years from completion for the next owner. Unlike asphalt roofs that degrade every 15–20 years or wood that requires ongoing maintenance, aluminum doesn't suffer the aging failures those materials do. Westmoreland's subtropical conditions—1199 mm rainfall, 3 freeze-thaw days—fall well within the design envelope, so you're not pushing the material to its limits.

The four-way interlock creates a sealed overlap system where each panel locks tightly to the next, directing water down and off the roof in a continuous path. Westmoreland receives about 1199 mm of rain annually—a meaningful test of any drainage design. The interlocking profile doesn't rely on sealant or caulk to stay watertight; mechanical interlock does the work. Paired with proper underlayment and a solid deck, the system is tested and code-approved under Florida Product Approval FL7263-R7 (UL 580 / TAS 125 testing). The aluminum itself cannot rot or absorb water, and the Alunar coating prevents moisture infiltration at the panel surface. Installation over an existing roof preserves any existing water-shedding structure while adding this engineered interlock above it.

Minimal. Unlike asphalt shingles that curl, crack, and shed granules over 15–20 years, or wood shake that splits and requires sealing, aluminum doesn't degrade in those ways. The Alunar 70% PVDF fluorocarbon finish (30-year coating warranty per ASTM D4214 / D2244) resists chalking and fading in Westmoreland's 3539 annual sunshine hours and high UV exposure. You don't need to seal, stain, or treat the material. Occasional debris removal and gutter cleaning—standard for any roof—is sufficient. The non-prorated Guardian Warranty covers structural failures if they occur, but aluminum's corrosion resistance means the failure modes that plague other materials don't happen. CALGreen verification acknowledges the reduced-maintenance profile, lowering your long-term ownership costs.

Interlock's lightweight design—Shingle at 0.41 lb/sq ft, Tile at 0.59 lb/sq ft—allows installation directly over most existing roofs, eliminating the tear-off and landfill cost. Your local installer, Interlock Roofing of America, has served the region since 2014 and can assess your specific structure in person. Installation time depends on roof size and complexity, but the four-way interlocking panel system is designed for efficient fastening and alignment. Avoiding a tear-off also shortens your project timeline and minimizes disruption. The ICC-ES evaluation (ESR-1790) confirms code compliance for installation over existing structures in your climate. Post-installation, your roof carries the full Guardian Warranty and is covered under Florida Product Approval FL7263-R7, so the permitting and inspection process runs smoothly.

Aluminum is non-combustible and Class A fire-rated (the highest classification). The material cannot ignite or spread flame, making it one of the safest roofing choices during wildfire seasons or in areas with fire risk. Interlock's roofing-grade aluminum alloy meets the ICC-ES evaluation report ESR-1790 (IBC/IRC, reissued 2025) for fire safety. In contrast, asphalt shingles are Class C or D rated and can ignite under intense heat; wood shake is even more flammable. Westmoreland's subtropical climate doesn't feature frequent wildfires, but the non-combustible rating still adds security and may qualify you for homeowner's insurance discounts in some cases. Your home's contents and structure are better protected when the roof itself cannot burn, and that peace of mind extends across seasons.