Never
Re-Roof
Again.® Lifetime Interlock® aluminum roofing, supplied for Long Island homes and installed by certified independent installers.
If you have been searching for where to buy a metal roof on Long Island, this is the manufacturer's own door. Interlock Roofing of America supplies the Interlock® Lifetime Aluminum Roofing System, certifies independent, county-licensed roofing contractors on it, and assigns a certified Interlock installer to your project — the installer pulls the permit under their own licence. Aluminum has no iron and cannot rust on either shore, the panels lock on all four sides with the fasteners out of the weather, and the Guardian Lifetime Limited Material Warranty transfers once when you sell.
Lifetime refers to the Guardian Lifetime Limited Material Warranty from the manufacturer, Interlock Roofing Ltd. — material and finish, for as long as the original purchaser owns the home, transferable once. Workmanship is warranted separately by the installing contractor. See terms, exclusions and transfer conditions.
What changes when an Interlock metal roof goes on your Long Island home.
Built for nor'easters and the tail end of hurricanes, and evaluated on the record
Long Island takes wind from two directions: the nor'easters that stack up from October to April, and the tropical systems that reach the South Shore in late summer. The New York State codes are built on the International Codes, and they put Nassau and Suffolk in the highest design-wind band in the state — your town's building department has the value for your address. ICC-ES ESR-1790 evaluates the Slate, Cedar Shingle, Shake and Mediterranean Tile profiles for compliance with those codes, with tested wind uplift to 177.5 psf. The panels lock to each other on all four sides with no fastener in the weather, and wind resistance is warranted to 120 mph when installed to manufacturer specification.
Two shores, one bay, and salt in the air. Aluminum has no iron to rust
Every steel panel is cut somewhere, and every cut exposes bare metal the factory coating never reached — which is why steel and Galvalume warranties commonly exclude roughly the first 1,500 feet of shoreline. On an island that is a lot of houses. Aluminum contains no iron and cannot rust, at the cut edge or anywhere else. Near the water, the assigned installer specifies stainless or aluminum fasteners to match.
Recycled aluminum
Up to 95% recycled content, and the last tear-off your house is likely to need.
Freezing doesn't damage a roof. Freezing and thawing does
A Long Island winter hovers around the freezing line, which is worse for asphalt than deep cold: water works into the shingle's fiberglass mat, freezes, expands and delaminates it from the inside, dozens of times a season. Aluminum has no mat and absorbs nothing. Ice dams are a separate matter — a heat-loss problem, and a stated warranty exclusion — and the assigned installer looks at the attic, not just the roof.
Class 4 impact rated — and honest about what that means
UL 2218 Class 4 is the highest impact rating a roof covering can carry: a 2-inch steel ball dropped twice on the same spot with no crack in the panel. Long Island hail is occasional rather than routine, but a summer storm off the Sound does not care about averages. The Guardian warranty covers hail to 1.5-inch stones. Any insurance credit for Class 4 is your carrier's decision — ask them, and ask about the hurricane deductible on your policy while you are at it.
Class A fire rating available — as a complete assembly
Worth being precise about, because plenty of roofing pages are not: under ASTM E108 the classification belongs to an assembly, not to a panel. Class A is available here as an assembly over GAF VersaShield underlayment, evaluated in ICC-ES ESR-2053. Aluminum itself does not ignite.
Aluminum against asphalt, cedar and steel on Long Island: the part nobody puts in the pitch.
No prices here, on purpose. A Long Island roof price turns on pitch, deck condition, how the eaves are detailed for ice, how close the house is to the water, and which profile and fastening the installer specifies — a national average would tell you nothing true. This is what each material actually asks of you over the life of the house.
Asphalt Shingles
Replaced repeatedlyCedar Shingles
The Long Island look, on a clockSteel & Galvalume
Metal, with an iron clockInterlock Aluminum
Lifetime — never re-roof again®One thing this table does not claim: a metal roof does not automatically change what you pay for insurance. Any Class 4 or wind credit is your carrier's decision, and most Long Island policies carry a separate hurricane deductible whatever the roof is made of — ask your carrier what applies to your house.
Profiles within ICC-ES ESR-1790: slate, cedar shingle, shake & tileThe look belongs to your home.
The performance belongs to the metal.
Slate
The formal character of quarried slate — the look of the North Shore's older houses — at a fraction of the weight, in aluminum that cannot rust.
Cedar Shingle
Cedar character for a Cape or a Colonial, with nothing for salt air and freeze-thaw to split, rot or re-stain.
Shake
Deep shadow lines and hand-split texture, held down by the four-way interlock.
Mediterranean Tile
The barrel-tile silhouette at a fraction of the weight — no clay to crack in a freeze.
Designer colors across the profiles, all in the Alunar® coating system. Two honest limits: standing seam is outside the ICC-ES report and is not offered through this program, and every profile needs a minimum 3/12 roof slope. Full specifications are the manufacturer's to publish: interlockroofing.com ↗
Nassau and Suffolk counties — Long Island, from the Queens line to Montauk.
The five boroughs, Westchester, the Hudson Valley and upstate are not served, and saying so plainly beats finding out at permit time. Anywhere in Nassau or Suffolk — the Five Towns, the North Shore, the South Shore, the Island's middle, the North and South Forks — call the line and a certified Interlock installer is assigned to your project.
Nassau County
Hempstead, North Hempstead and Oyster Bay towns — Long Beach, Garden City, Great Neck, Massapequa, Glen Cove and the villages between.
Suffolk County
Huntington, Babylon, Islip, Smithtown and Brookhaven, out to Riverhead, Southampton, East Hampton and the forks.
One line for both
1-866-733-5811 — toll-free. Not sure whether your address is inside the line? Call and you will get a straight answer.
The six questions Long Island homeowners ask first.
Who actually installs the roof?
Not us. Interlock Roofing of America manufactures and supplies the roof and certifies independent roofing contractors on the system. A certified Interlock installer is assigned to your project; they hold the Nassau County or Suffolk County home-improvement licence, pull the permit with your town or village, and sign the contract with you. Certified means certified by the manufacturer — it is not a state or county licence.
Which parts of New York do you serve?
Nassau and Suffolk counties — Long Island from the Queens line to Montauk. New York City's five boroughs, Westchester, the Hudson Valley and upstate are not served, and we would rather say so here than at permit time.
Is this roof approved for Long Island wind?
New York has no state product-approval regime of its own. What your building department checks is the ICC-ES evaluation report: ESR-1790 covers the Slate, Cedar Shingle, Shake and Mediterranean Tile profiles for compliance with the International Building and Residential Codes, on which the New York State codes are based, with tested wind uplift to 177.5 psf. Warranted wind resistance is 120 mph when installed to manufacturer specification. Long Island sits in the highest design-wind band in the state; the installer confirms the fastening schedule for your address.
What about salt air on the South Shore and the North Shore?
Aluminum contains no iron and cannot rust — at a cut edge, a fastener hole or anywhere else. Steel and Galvalume finish warranties commonly exclude roughly the first 1,500 feet of shoreline, which on Long Island takes in a great many houses. Near the water the assigned installer specifies stainless or aluminum fasteners to match.
Does a metal roof stop ice dams?
No, and we will not tell you otherwise. Ice dams form when heat escaping through the roof deck melts snow that then refreezes at the cold eave — an insulation and ventilation problem that shows up as a roofing symptom. Interlocked aluminum sheds sooner and does not rot when a dam forms, but no roof covering eliminates ice damming, and it is a stated exclusion in the Guardian warranty. If your house dams now, the fix starts in the attic.
What has to be in the contract?
New York's home-improvement contract law (General Business Law Article 36-A) requires a written contract that states the contractor's name, address and licence number, the work, the price, and approximate start and completion dates, and requires the contractor to hold your deposit and progress payments in an escrow account or post a bond (§ 771-a). The contract is between you and the assigned installer. Nassau and Suffolk each license home-improvement contractors at the county level; check the number on the proposal with the county before you sign.
From the manufacturer to your roof: three steps, no surprises.
Tell us about your roof
A minute online or one phone call. The age of the roof, the current covering, how close you are to the water, and what is prompting the change.
A certified installer is assigned
An independent roofing contractor holding the Nassau or Suffolk home-improvement licence, certified by the manufacturer on this system, is assigned to your project. The installer visits, measures, and looks at the deck, the attic and the eaves — because ice detailing and the fastening schedule both depend on what is actually up there.
The installer's proposal, in writing
A written contract under the installer's own licence, as New York's home-improvement law requires, and the permit pulled with your town or village under that licence too. The material and the Guardian Lifetime Limited Material Warranty come from the manufacturer; the workmanship agreement is between you and the installer.
The other path is the one you already know: another asphalt roof delaminating through the shoulder seasons, ice at the eaves every February, another tear-off after the next nor'easter. One aluminum roof, bought from the manufacturer's program and installed by a certified contractor, ends the cycle. How the program works →
Let's plan your last roof.
Tell us about your roof, and the certified Interlock installer for your part of the Island takes it from there — a visit, a written proposal, and no pressure from anyone.
No-obligation request · A certified Interlock installer is assigned to your project · Nassau and Suffolk counties only
