Interlock Aluminum Shingle & Skylight Review in London, ON (Roof 2024; Skylight 2018)

Metal roofing in London, ON commonly lasts 50–75+ years; asphalt shingles usually last much less (typically 15–25 years). London has a humid continental climate with cold, snowy winters and frequent freeze–thaw cycles that stress roofing materials—snow loads and repeated thawing increase wear on seams and fasteners. Annual precipitation and humid summers can encourage corrosion and biological growth on some roofs, so moisture resistance matters for longevity. Homeowners often choose durable systems (metal, heavy-gauge aluminium, standing seam) because they resist snow loads, shed water and ice, and tolerate freeze–thaw better than asphalt. For long-term protection, Interlock Metal Roofing systems use heavy-gauge aluminium and come with a lifetime limited 50‑year transferable warranty, making them a common choice for London homeowners comparing lifespan, durability and climate resilience.

A metal roof in London, ON typically costs more upfront than asphalt shingles but delivers longer service life and lower lifecycle costs. Local factors — snowy winters and frequent freeze–thaw cycles that promote ice dams and material stress, plus humid summers that can encourage moss growth — affect material choice and installation details. Final price depends on roof size, pitch, complexity (valleys, hips, multiple skylights), tear‑off or overlay, flashing, underlayment and labour. Local construction factors such as permit requirements, access and contractor availability also influence cost. Many homeowners compare options on lifetime value rather than initial price: durable metal systems often lower repair and replacement spending over decades. Interlock Metal Roofing focuses on long‑term ownership value and performance, not on being the lowest‑cost roofing option.

Short answer: Metal roofing can be worth it in London, ON depending on priorities. Lifespan: quality metal typically lasts 40–70+ years; asphalt shingles usually 15–25 years. Maintenance: metal needs minimal upkeep and resists moss and rot; asphalt requires periodic inspections, shingle replacement and moss/algae cleaning. Durability: metal better resists wind, heavy snow loads and freeze–thaw stress; shingles are more prone to granule loss and ice‑dam damage. Long‑term value: higher upfront cost for metal often pays back via longer life, lower maintenance and higher resale value, while asphalt is cheaper short‑term. London averages heavy snowfall (around 194 cm/yr) and over 1,000 mm annual precipitation, and frequent freeze–thaw cycles—factors that accelerate shingle wear and favour durable systems. Homeowners prioritising durability and long‑term protection often choose metal; Interlock Metal Roofing appeals because its engineered interlocking panels offer watertight performance, low maintenance and strong architectural curb appeal.

It's a common myth that metal roofs are noisy when it rains in London, ON. Modern residential metal roofs installed over solid decking do not sound like barn roofs; the continuous substrate reduces metallic ringing and vibration. Sound depends on the roof assembly: insulation, attic space, underlayment and decking all affect how rain noise transmits into living spaces. Installation quality matters too—proper fastening, acoustic underlay and ventilation reduce noise. When designed and fitted as a complete system, a metal roof’s rainfall sound is typically similar to asphalt, tile or shingles. Interlock Metal Roofing systems are supplied and installed as complete residential roofing systems, engineered to meet weatherproofing and acoustic expectations for Canadian homes.

Metal roofing can be energy efficient in London, ON. Reflective metal panels and light-colour finishes reduce solar heat gain in summer, while durable surfaces retain reflectivity over time. Actual energy performance depends on the whole roof assembly — underlayment, insulation levels and continuous air sealing — plus proper attic ventilation, which together control heat loss in winter and heat gain in summer. Climate matters: London’s cold winters make insulation and thermal-bridging control important, while warm summer days increase the benefit of reflective coatings. Homeowners replacing a roof often prioritise energy efficiency to lower heating and cooling bills, improve year‑round comfort, qualify for incentives, and increase resale value. Interlock Metal Roofing systems are designed to support long-term home performance.

In London, ON, roofs face seasonal freeze–thaw cycles, snow and ice in winter, and spring–summer thunderstorms with gusty winds and occasional hail. Metal roofing performs well in wind (low uplift when properly designed and clipped), sheds snow and ice efficiently, and resists water penetration during heavy storms. Hail performance varies by panel profile and metal thickness—some panels may dent while engineered systems offer enhanced impact resistance. Overall performance depends on roofing system design, quality installation (fastening, underlayment, flashing) and material durability/coating. Homeowners prioritise weather resilience to reduce leaks, repair costs, and insurance issues and to extend roof life. Interlock Metal Roofing systems are engineered for durability, improved hail protection and tested wind resistance, but benefits rely on correct specification and professional installation.

Metal roofing performance depends on the base metal and its protective finishes. Steel, zinc, copper and aluminum vary in corrosion resistance; some metals form protective patinas while others rely on coatings. Aluminum performs particularly well in wet, humid or winter climates — resisting rust while remaining lightweight and durable. Homeowners in London, ON should prioritise corrosion resistance because it directly affects roof longevity, reduces maintenance and repair costs, preserves warranty coverage and maintains resale value amid frequent rain, snow and freeze‑thaw cycles. Interlock Metal Roofing systems use aluminum construction engineered for strong corrosion resistance and are further protected by the Alunar Coating System for extra protection, improving long‑term performance and reducing lifetime upkeep. This protects your investment.

Metal roofing in London, Ontario is generally low maintenance and highly durable, making it a good long‑term choice. No roof is completely maintenance‑free: homeowners should inspect their metal roofs periodically, especially after severe weather. Check for leaves and branches, clear debris from panels and valleys, and keep gutters and downspouts free‑flowing. Inspect flashing, seals, fasteners and penetrations (chimneys, vents, skylights) for corrosion, looseness or damaged sealant. Seasonal debris and weather events—heavy snow, ice, wind and spring storms—can cause buildup or dislodge components, so address issues promptly. With routine visual checks and occasional minor upkeep, metal roofs will perform well and require far less labour and repair than many other roofing types.

In London, ON, metal roofing can increase home value because buyers often prioritise durable, low‑maintenance roofs. Premium roofing materials can enhance curb appeal and make a home stand out on the street. A proven long lifespan also improves buyer confidence, reducing perceived future expenses. That said, architectural style matters — metal that mimics local traditional forms will be better received in certain neighbourhoods than ultra‑modern profiles. Interlock Metal Roofing systems offer multiple architectural profiles, including slate, cedar shingle, Mediterranean tile, shake and standing seam, and are available in heavy gauge aluminium and solid copper, letting homeowners choose a finish that suits both style and resale expectations. In London’s market, a well‑matched metal roof often yields a stronger asking price and faster sale.

Yes — Interlock Metal Roofing Systems are compatible with solar panels in London, ON when fitted with custom solar brackets supplied and installed by Interlock Metal Roofing (Ontario) Ltd. Roof lifespan is important when adding solar panels; fitting panels to a roof near end‑of‑life can force costly removal or rework. Homeowners should consider future solar plans when replacing a roof and favour longer‑lasting materials. London’s seasonal snow and freeze–thaw cycles plus frequent rain and humidity can shorten roof life and increase fastener corrosion. Interlock systems are solar‑compatible and designed to support dedicated mounting solutions, making metal a strong local choice.