Metal Roofing Built for Cedar's Heavy Rain, Snow Loads, Windstorms & Lifetime Protection

Performance you can measure (all climates):
• Proudly manufactured in Canada by a family-owned company and supplied through authorized Interlock® Lifetime aluminium installers serving Cedar and Vancouver Island
• Coated with the Alunar® Coating System (no visible aluminium surface) for long-term finish integrity on coastal roofs
• Precision weatherproof seams (profiles: slate, cedar, shake, tile) and mechanical fastening (profile: standing seam) deliver long-term leak protection during wind-driven rain events
• Tested to resist severe coastal gusts — rated to 193+ km/h for Pacific windstorm performance
• Marine-grade corrosion resistance formulated for Cedar’s shoreline properties exposed to salt-laden air
• Engineered panels that shed snow and reduce buildup to help prevent ice dams during freeze–thaw cycles and occasional snowfall
• Designed for Vancouver Island’s heavy rainfall and atmospheric river events — sealed joints and continuous drainage limit infiltration
• Surface finish and profile details limit moss adhesion common to Cedar’s shaded, damp microclimates
• Class A fire-rated available to address seasonal ember risk and elevated wildfire-season exposure in drier periods
• UL 2218 Class 4 impact resistance for protection against hail, falling branches and storm debris
• Cool-roof performance to reduce summer heat gain and improve attic comfort during heat waves
• Solar-ready framing and panel geometry for secure bracket-mounted photovoltaic installations on Cedar homes
• Fully recyclable aluminium supports sustainable construction practices common in British Columbia building specifications
• Premium architectural profiles that replicate slate, cedar shake and tile while offering standing-seam mechanical fastening for local aesthetics
• Low-maintenance system designed to outlast asphalt shingles in Cedar’s high-moisture coastal environment
• Backed by a Lifetime-Limited transferable warranty to protect homeowners and preserve property resale value
Interlock Metal Roofing (BC) Ltd.
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Interlock® Aluminum Roofing — all-climates performance specs for Cedar, British Columbia
| Spec / Rating | Climate / Risk Factor + What It Solves |
|---|---|
| Wind resistance: 120+ mph (193+ kph) | Extreme wind, hurricanes, storm uplift: full interlocking attachment helps prevent blow-offs, edge lifting, and panel loss in high-gust events. |
| Fire rating: Class A (with proper assembly) | Wildfire, embers, radiant heat, chimney sparks: non-combustible roof assembly provides the highest residential fire protection rating. |
| Hail resistance: UL 2218 Class 4 | Hail and impact debris: highest impact classification; resists cracking, splitting, and surface loss common with asphalt under hail strikes. |
| Snow & ice performance: interlocking, shedding profile | Heavy snow, freeze-thaw, ice dams: smooth aluminum sheds snow efficiently and the interlocking design helps block water intrusion when melt-refreeze cycles occur. (Final snow-load capacity depends on roof structure and local code.) |
| Corrosion resistance: aluminum (won’t rust) | Salt air, coastal humidity, wet climates: aluminum naturally resists rust and corrosion, reducing long-term failure risk in marine or high-moisture environments. |
| Heat / UV durability: baked-on coating system | High heat, intense sun, thermal cycling: coatings resist UV breakdown and temperature-swing fatigue, slowing fading and surface degradation. |
| Moss / algae resistance: smooth coated surface | Wet shade, organic growth: low-porosity metal surface gives moss/algae less to grip, reducing staining and maintenance. |
| Material: heavy-gauge aluminum roof profiles (Slate / Shake / Shingle / Tile / Standing Seam) | All-season structural stability: lightweight, dent-resistant metal system stays stable through large hot-cold swings and severe weather. (Add exact alloy + thickness for maximum spec proof.) |
| Expected lifespan: 50+ years | Long-term durability across climates: avoids re-roof cycles typical of shorter-life materials, even in high-stress environments. |
| Warranty: Lifetime-Limited, non-prorated + 50-year transferable | Lifetime protection + resale value: guarantees long-term material confidence and transfers to future owners. |
Available Profiles in Cedar, British Columbia:
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Metal Roofing FAQs for Homeowners in Cedar
The following metal roofing FAQs are designed specifically for homeowners in Cedar, British Columbia. Whether you are building a new home or replacing an existing roof, understanding how roofing materials perform in local weather conditions is essential. From wind and storm protection to fire resistance, hail impact, snow loads, and coastal moisture exposure, Interlock’s Lifetime Aluminum Roofing System is engineered to provide long-term durability, energy efficiency, and peace of mind in Cedar.





