Metal Roofing in West Greenwich, Rhode Island — Lifetime Interlock® Aluminum Shingles Installed Locally

Yes — aluminum's light weight and smooth interlocking panels are actually ideal for snow country. West Greenwich gets about 75 cm of snow annually plus roughly 80 freeze-thaw cycles, which are brutal on asphalt. Interlock's four-way interlocking design sheds snow efficiently, and because the aluminum weighs just 0.41 lb/sq ft (Shingle profile), it won't sag under accumulation the way heavier materials do. Snow guards can be added where needed. The real advantage: aluminum doesn't degrade from constant freeze-thaw stress the way asphalt shingles do.

Freeze-thaw destroys asphalt and wood by working into pores and seams—water expands when frozen, cracking the material from inside. Aluminum has no pores and doesn't absorb water, so ice can't damage it that way. With about 80 freeze-thaw days per year in West Greenwich, this matters. The roofing-grade 3105-H24 aluminum alloy won't crack, curl, or split—conditions that appear routinely on asphalt by year 15. The Alunar coating protects both panel sides, even in the salt-air climates where freeze-thaw is most aggressive.

Aluminum cannot rust because it contains no iron—rust requires iron to oxidize. Instead, aluminum develops a thin, invisible oxide layer that actually protects the metal underneath and self-heals when scratched. The Alunar 70% PVDF fluorocarbon coating is applied to both sides of each panel for extra protection in corrosive environments. West Greenwich gets about 1264 mm of rain yearly, plus winter moisture and salt-laden air from coastal weather systems. That dual-side coating carries a 30-year warranty against chalking and fading, keeping the roof intact while steel alternatives rust through.

No — the four-way interlocking panels lock together tightly and are warranted to resist wind speeds up to 120 mph when installed per specification. West Greenwich sees typical gusts around 125 km/h (about 78 mph) but can experience stronger storms. The interlocking design means there are no exposed fasteners and no weak seams where wind can lift the roof. Compare this to asphalt shingles, which start failing at 60–80 mph and require replacement after major storms. Once installed, your aluminum roof won't need emergency repairs or expensive re-fastening after wind events.

Aluminum's strength comes from geometry, not thickness: the interlocking profile creates a sealed joint so water has nowhere to go but off the roof. West Greenwich receives about 1264 mm of rainfall per year, including heavy spring rains and nor'easter downpours. The four-way lock means each panel overlaps its neighbors in both directions, and when installed over a solid deck with underlayment, water is directed cleanly to gutters—the same path it follows under asphalt. The real advantage: aluminum panels don't absorb moisture, so they don't rot or degrade behind the visible surface like wood shakes or asphalt do over 20+ years.

No reinforcement needed. The Interlock Mediterranean Tile profile weighs only about 0.59 lb/sq ft—roughly 96% lighter than concrete or clay tile—so it installs directly over most existing roofs without structural upgrades. A real tile roof of the same visual profile would require expensive framing reinforcement. Aluminum's light weight means you can reroof without tearing off the old asphalt, saving labor and disposal costs. That matters in West Greenwich, where labor availability and winter installation windows are limited. The ICC-ES evaluation (ESR-1790) confirms the system meets building code for residential installations.

Metal roofs with UL 2218 Class 4 impact rating—the highest available—are extremely resistant to hail and often qualify for homeowner insurance discounts. Interlock's warranty even covers perforation from hailstones up to 1.5 inches. While West Greenwich's hail risk is moderate compared to the High Plains, severe weather is becoming more unpredictable. Class 4 rating means the roof can take a direct hit from large hail and remain intact, whereas asphalt shingles begin failing at smaller impacts. Talk to your insurance agent; many carriers reduce premiums for Class 4 roofing, which can offset the material cost difference over time.

Over 50 years, aluminum almost always costs less per year than asphalt replaced multiple times. Asphalt lasts 15–20 years and requires complete tear-off and reinstallation—labor, disposal fees, and new material each cycle. Interlock carries a lifetime limited warranty on materials for the original owner, and the next owner gets 50 years of coverage, so resale value improves. Right now, our Spring 2025 promotion offers no payments and no interest until 2027, or 10% off installation. If you stay in the home 20+ years, you'll avoid at least one asphalt replacement and its $8,000–$15,000 cost. Do the math: one reroof cycle pays for a metal roof.

Yes—aluminum ends the tear-off-to-landfill cycle. Asphalt shingles can't be recycled and sit in landfills for decades; a typical reroofing project sends 2–3 tons to waste. Interlock aluminum is approximately 95% recyclable, and when your roof eventually needs replacement (50+ years out), the panels have scrap value and return to the aluminum supply chain. West Greenwich doesn't have a local landfill capacity crisis, but disposal costs are rising. The manufacturing process uses less energy per pound than creating new asphalt or concrete tile. Over a 50-year building lifetime, aluminum's recycled-content and end-of-life recyclability mean far less environmental impact.

Almost none. Aluminum won't rot, split, curl, or degrade like wood shakes or asphalt shingles do over West Greenwich's 80 annual freeze-thaw cycles. Clean gutters and check flashing after major storms—that's routine maintenance for any roof. No moss or algae grows on metal the way it does on asphalt in damp climates. The CALGreen-verified system is rated for reduced maintenance burden. Asphalt requires regular inspections, patching at year 10–15, and complete replacement by year 20. Wood shake needs staining every 5–7 years and replacement of split shakes every few years. Metal requires none of that: the Alunar coating stays intact and doesn't chalk or fade for 30 years, and the aluminum itself doesn't degrade.

Yes. West Greenwich averages about 75 cm of snow, 1264 mm of rain, roughly 80 freeze–thaw days a year, with peak wind gusts near 125 km/h. Interlock® aluminum roofing is wind-rated to 193+ km/h (120 mph), UL 2218 Class 4 impact-rated and Class A fire-rated, and its four-way interlocking panels shed snow and resist ice dams and freeze–thaw cracking — all backed by a lifetime limited, transferable warranty.