Metal Roofing in Sharon, Massachusetts — Lifetime Interlock® Aluminum Shingles Installed Locally

Metal roofing sheds snow efficiently because its smooth, hard surface prevents snow from bonding to the panels like it does to asphalt. Sharon averages about 75 cm of snow annually with gusts reaching 135 km/h, so snow load and ice dams are real concerns. Interlock's four-way interlocking design and lightweight aluminum (the Shingle at 0.41 lb/sq ft) mean your roof supports heavy wet snow without structural upgrades. Optional snow guards can be installed at the eave if you want to control discharge. The rigid deck and underlayment prevent the flex that traps meltwater on asphalt roofs, reducing ice dam formation in the freeze-thaw cycle Sharon experiences about 84 days per year.

Asphalt absorbs water, expands when it freezes, and contracts when it thaws — this cycle cracks, splits, and curls the material over time. Aluminum does not absorb water. Sharon's approximately 84 freeze-thaw days per year, combined with 1194 mm of annual rainfall, create ideal conditions for asphalt failure. Interlock's 3105-H24 aluminum alloy remains dimensionally stable through thousands of freeze-thaw cycles. When the oxide layer on aluminum's surface is scratched, it self-heals — no rust initiates. The Guardian Warranty explicitly covers splitting, cracking, and curling; asphalt roofs simply age and fail under these stresses.

Aluminum cannot rust because it contains no iron — the element that oxidizes and corrodes. Instead, aluminum develops a thin, transparent oxide layer that actually protects the metal beneath and self-heals when scratched. This makes aluminum ideal for Sharon's maritime-influenced climate with moderate salt exposure and 1194 mm of annual moisture. Steel roofing, by contrast, requires paint or coatings to prevent rust, and once that coating fails, rust spreads quickly. Interlock adds a second layer of protection: Alunar 70% PVDF fluorocarbon finish on both sides of every panel, warranted 30 years against chalking and fading. Even if the coating wears, the aluminum substrate remains protected indefinitely.

Yes. Interlock panels are warranted to resist wind speeds up to 120 mph when installed to specification. Sharon's typical peak gusts reach 135 km/h (about 84 mph), well within the warranty. The four-way interlocking design means each panel locks to its neighbors on all four sides — no exposed fasteners, no seams for wind to exploit. Wind cannot lift or separate a properly installed Interlock roof. Compare this to asphalt shingles, which are vulnerable to blow-off in high winds. The ICC-ES evaluation report ESR-1790 covers installation methods for wind resistance. Given the region's seasonal nor'easters and occasional microbursts, this mechanical interlock is a substantial advantage over fastener-dependent systems.

Interlock achieves UL 2218 Class 4, the highest available hail impact rating. The warranty even covers perforation from hailstones up to 1.5 inches — a level of protection most asphalt and slate roofs cannot match. Class 4 rating demonstrates impact resistance that many insurance carriers recognize; some offer premium discounts for Class 4 roofs because the loss history is strong. While Sharon's climate does not feature routine hailstorms, the region occasionally experiences severe thunderstorms and spring convection that can produce damaging hail. Documenting your roof's Class 4 rating and lifetime limited warranty when you apply for homeowners insurance or renew your policy may reduce your premiums and simplify claims if impact damage does occur.

The Guardian Warranty is a lifetime limited, non-prorated material warranty for the original homeowner. It covers rusting, rotting, splitting, cracking, curling, and loss of impact resistance — all the failure modes that plague other roofing materials. It does not wear down over time; a defect in year 29 is covered as fully as in year 1. The warranty is one-time transferable: the next homeowner gets 50 years of coverage from the date of completion. This matters at resale. Most asphalt roofs last 15–20 years before needing replacement; Interlock's durability, combined with the transferable term, means your next roof investment is your last. For a homeowner planning to stay in Sharon, this eliminates re-roofing costs for decades.

Metal costs more initially but eliminates the repeat replacement cycle asphalt requires. Asphalt roofs in Sharon's climate — with 1194 mm of rain, 75 cm of snow, and 84 freeze-thaw days annually — typically need replacement every 15–20 years. A metal roof, by contrast, lasts 50+ years. Over that span, you avoid two or three asphalt tear-offs and re-installations, plus disposal costs and the disruption of reroofing. Interlock's aluminum is ~95% recyclable, eliminating landfill tipping fees asphalt incurs. Current financing (no payments, no interest until Spring 2027, or 10% off installation) closes the upfront gap. Homeowners who plan to stay in their home long-term and factor in energy savings from reflective coatings (up to 0.55 solar reflectance) typically recover the difference in 10–15 years of reduced cooling costs and avoided repairs.

Interlock requires virtually no maintenance beyond occasional inspection and gutter cleaning — exactly what asphalt, wood, and tile demand anyway. The panels do not curl, split, or degrade like asphalt shingles do after 10–15 years of Sharon's 84 annual freeze-thaw cycles. Unlike wood shake, aluminum does not rot, attract insects, or require treatment. Unlike tile, it does not crack from impact or settle unevenly. The Alunar coating (PVDF fluorocarbon, warranted 30 years) resists fading and chalk residue — no power-washing needed. Rain, snow, and the region's 3062 hours of annual sunshine clean the panels naturally. Most homeowners never call for a roof repair after installation. This contrasts sharply with asphalt, which requires patching, shingle replacement, and regular inspection as it ages.

No. Interlock's extreme lightness is one of its primary advantages. The Cedar Shingle profile installs at 0.41 lb/sq ft, the Mediterranean Tile at 0.59 lb/sq ft — about 96% lighter than concrete or clay tile. This means you can install Interlock over most existing roofs without structural reinforcement, saving thousands in framing upgrades. Asphalt shingles weigh roughly 2–3 lb/sq ft; Interlock's Tile profile is still a fraction of that. Because Sharon receives about 75 cm of snow per year, a lightweight roof that does not require reinforcement is especially valuable — you avoid expensive structural work while gaining superior durability. The ICC-ES evaluation ESR-1790 confirms installation feasibility over existing structures. A structural engineer will typically clear your home immediately.

Interlock Metal Roofing (New England) Inc. has served this region since 1999 — longer than most roofing companies in Norfolk County have been in business. They are factory-trained, familiar with New England winters (Sharon gets about 75 cm of snow and gusts to 135 km/h), and experienced with the full range of profiles: Slate, Cedar Shingle, Shake, Standing Seam, and Mediterranean Tile. They handle permitting, structural assessment, and installation to the specifications required for the ICC-ES ESR-1790 certification and your wind warranty. Since Interlock manufactures in Delta, BC, and has installed in salt-air coastal homes and extreme environments, the installer's experience base is deep. Contact them for a site visit, warranty review, and to confirm current financing offers (no payments and no interest until Spring 2027, or 10% off installation).