Metal Roofing in Chester, New Hampshire — Lifetime Interlock® Aluminum Shingles Installed Locally

Metal roofing sheds snow efficiently because of its smooth, sloped surface and low friction — snow doesn't trap moisture the way asphalt shingles do, which helps prevent ice dams during Chester's roughly 98 freeze-thaw cycles per year. Interlock's four-way interlocking aluminum panels are rated to withstand significant snow load, and the lightweight design (the Shake profile weighs just 0.58 lb/sq ft) means your home's framing carries far less cumulative burden than slate or clay tile would. With about 117 cm of snow annually in your region, this matters: the snow slides cleanly off rather than creating stress points or pooling water that refreezes at the eaves.

No — aluminum's inherent properties make it immune to the damage that freeze-thaw cycling inflicts on other materials. Because aluminum contains no iron, it cannot rust even when exposed to repeated moisture and temperature swings like Chester's 98 annual freeze-thaw days. The roofing-grade 3105-H24 / 3003-H24 aluminum alloy meets ASTM B209 standards and remains structurally sound through countless cycles; the self-healing oxide layer actually protects the metal further when the surface is scratched. Wood shakes and clay tiles, by contrast, absorb water, expand, contract, and crack — but aluminum simply doesn't participate in that damage mechanism.

Aluminum cannot rust because it contains no iron — the element responsible for rust in steel. Instead, aluminum naturally forms a thin, transparent oxide layer that protects the underlying metal and actually self-heals when scratched or abraded. Interlock applies Alunar 70% PVDF fluorocarbon finish to both sides of every panel, warranted 30 years against chalking and fading per ASTM D4214 standards, so the coating itself outlasts most asphalt roofs. With Chester's roughly 1007 mm of annual rainfall and humid New England air, this dual-layer protection (aluminum's oxide plus the PVDF finish) gives you peace of mind that your roof won't degrade from moisture exposure the way steel or wood would.

No structural reinforcement is needed. Interlock's Mediterranean Tile profile, which delivers the visual weight of traditional clay or concrete tile, weighs approximately 0.59 lb/sq ft — about 96% lighter than the real thing. Even the heavier Shake profile comes in at just 0.58 lb/sq ft, compared to 6-10 lb/sq ft for authentic slate or 12+ lb/sq ft for concrete tile. This means the roof installs directly over most existing structures and can often go over your current asphalt shingles without removal, saving time and disposal costs. Your home's rafters and walls carry a fraction of the load, eliminating expensive structural upgrades that traditional tile or slate would demand.

Yes. Interlock's four-way interlocking aluminum panels are warranted to resist sustained wind speeds up to 120 mph (193 km/h) when installed to specification. Chester's typical gusts reach about 107 km/h — well within that margin — so your roof remains secure even during regional storms. The four-way interlock system means each panel grips its neighbors on all sides, preventing lift or separation that can plague single-seam roofs. Combined with proper fastening and underlayment, this design gives you confidence that snow, ice, and wind won't compromise your home's weather seal or create loose panels that rattle or fail prematurely.

Interlock metal roofing carries a UL 2218 Class 4 impact rating — the highest available — and the Guardian Warranty even covers perforation from hailstones up to 1.5 inches. That means if hail strikes your roof, you're protected against cracking, splitting, or loss of impact resistance; you won't face deductibles or denials because the roof itself failed. Some homeowners in hail-prone regions report that insurers offer modest premium discounts for Class 4 metal roofs, though you should verify with your own agent. Because aluminum is non-combustible (available with Class A fire classification per ICC-ES evaluation ESR-1790), insurers already view it as a lower-risk investment than wood shake or asphalt — adding hail resilience strengthens that profile even more.

Very little. Unlike wood shake roofs, which require regular inspection, treatment, and replacement of rotted sections, or clay tile roofs, which need broken tiles replaced and mortar re-pointed, metal roofing needs no re-coating, sealing, or structural repairs. Interlock's aluminum panels don't split, curl, or lose granules the way asphalt shingles do over Chester's 117 cm of annual snow and 1007 mm of rain. A basic annual inspection and occasional gutter cleaning suffice. The CALGreen-verified design acknowledges reduced maintenance burden, which translates to lower long-term ownership costs and fewer contractor visits over the roof's lifespan.

Yes. Interlock's energy-efficient colors feature thermal emissivity up to 0.84 and initial solar reflectance up to 0.55, meaning they reflect rather than absorb the sun's heat. On summer days, when Chester receives about 3018 annual sunshine hours, this reflectivity keeps your roof surface cooler and reduces the heat load transmitted into your attic and living spaces — lowering air-conditioning demand. The Cool Roof Rating Council certification confirms these thermal properties meet rigorous standards. While New England winters are long, the reflective coatings don't compromise the roof's insulating properties when paired with proper attic ventilation; in shoulder seasons and sunny winter days, that reflected heat reduces thermal stress on the structure.

The Guardian Warranty is non-prorated and transferable — you get lifetime limited material coverage for defects (rusting, rotting, splitting, cracking, curling, loss of impact resistance), and the next owner receives 50 years of coverage from completion. That's radically different from asphalt shingles, which typically come with 20- or 30-year prorated warranties that decline in value each year. Because Interlock has manufactured roofing-grade 3105-H24 / 3003-H24 aluminum panels since 1998 and installed them from coastal salt-air environments to an Antarctic research station, the company backs its product with genuine confidence. The 30-year Alunar PVDF coating warranty (ASTM D4214) further protects your finish against fading and chalking, so both the material and its appearance endure.

Yes. Because Interlock aluminum panels weigh as little as 0.41 lb/sq ft (Slate profile), they install directly over most existing roofs without removal — a major advantage in Chester's climate, where tear-off in winter or spring is difficult and adds disposal costs. The installation process involves securing the panels to your roof deck using concealed fasteners, then interlocking each piece to its neighbors in a four-way pattern that ensures weather-tight sealing. Over an existing shingle roof, this creates an air cavity that improves thermal performance. The whole job typically takes one to two weeks, depending on roof complexity and weather. Your local installer, Interlock Metal Roofing (New England) Inc., has been serving the region since 1999 and understands regional codes (ICC-ES ESR-1790) and installation best practices for New Hampshire's climate.

Yes. Chester averages about 117 cm of snow, 1007 mm of rain, roughly 98 freeze–thaw days a year, with peak wind gusts near 107 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.