Metal Roofing in New Westminster, British Columbia

Metal roofs shed snow efficiently because their smooth, interlocking aluminum surface offers no grip for accumulation, and the thermal properties of aluminum mean less heat loss that causes ice dams. New Westminster averages about 57 cm of snow annually alongside roughly 38 freeze-thaw days per year—conditions that crack and curl asphalt and wood shingles. Interlock's four-way interlocking panels are warranted to resist wind gusts up to 120 mph, so dislodged snow and ice won't compromise the seal. The lightweight aluminum (Shake profile at 0.58 lb/sq ft) never adds structural stress from snow load, and optional snow guards keep slides controlled.

Aluminum cannot rust because it contains no iron; instead, it forms a microscopically thin oxide layer that self-heals when scratched or exposed. In New Westminster's 1437 mm annual rainfall, this property becomes your insurance against corrosion. Interlock uses roofing-grade 3105-H24 and 3003-H24 aluminum (ASTM B209) and applies Alunar 70% PVDF fluorocarbon finish to both panel sides—essential protection in salt-air or high-moisture regions. That two-sided coating carries a 30-year warranty against chalking and fading. Steel roofing, by contrast, requires constant vigilance against rust in this climate; aluminum simply doesn't face that risk.

The four-way interlocking design creates overlapping channels that direct rainfall downward and outward, preventing water from pooling or finding seams. With New Westminster receiving about 1437 mm of rain annually—nearly four times the North American average—reliable drainage is non-negotiable. Each panel locks to its neighbors on all four sides, creating a continuous watershed; water never sits at joins. Install the panels over a solid deck with underlayment, and you get the same impermeability you'd trust in asphalt shingles, but without the risk of granule loss or deterioration that begins in year five or six. The Guardian warranty covers leaks for the original owner's lifetime.

Yes. The four-way interlocking aluminum panels are engineered to resist wind speeds up to 120 mph (193 km/h) when installed to specification—well above New Westminster's historical peak gust speeds near 114 km/h. Each panel locks on all four edges, creating a unified system that distributes wind force across the entire roof rather than allowing individual shingles to lift or separate. Standard winter gusts here average about 16 km/h, so you're operating far within the warranty envelope. This design advantage matters most during the month-to-month variability of Metro Vancouver winters, when sudden storms test roof integrity. Steel or composite roofing can't match this level of perimeter-to-perimeter restraint.

When you measure total installed cost against roof lifespan, metal becomes the lower-cost option. An asphalt roof typically requires replacement every 15–20 years in New Westminster's wet, freeze-thaw climate (38 freeze-thaw days annually), while Interlock's Guardian warranty offers a lifetime limited material warranty to the original owner and a 50-year transferable term to the next owner—likely the last roof you'll ever install. The aluminum never rots, splits, curls, or cracks. Current regional promotion includes interest-free payments for 3 months and savings of at least $2499 on installation. Over two asphalt cycles (30–40 years), you'll pay for removal, disposal, labor, and materials twice; with aluminum, you pay once and stop re-roofing.

Interlock metal roofing carries a UL 2218 Class 4 impact rating—the highest available—and the warranty even covers perforation from hailstones up to 1.5 inches. Class 4 means the panel survives impact from 2-inch steel balls dropped from 20 feet without cracking or losing performance. While New Westminster rarely experiences severe hail (the 10-year climate record suggests no frequent hail events), the hail rating contributes to overall durability in any storm. Many insurers offer premium discounts for Class 4-rated roofing because claims are vanishingly rare; contact your provider with the UL 2218 documentation to explore savings. The lightweight aluminum (Tile at 0.59 lb/sq ft) also means no risk of structural damage even if hail did strike.

Absolutely. Interlock offers five profiles: Slate, Cedar Shingle, Shake, Standing Seam, and Mediterranean Tile, each replicating authentic textures and dimensions. The Shake and Cedar Shingle profiles capture the rustic, architectural character of traditional wood; the Slate and Mediterranean Tile profiles echo high-end stone and clay finishes. All profiles are manufactured from the same roofing-grade aluminum with the same two-sided Alunar 70% PVDF coating and Guardian warranty. The Tile profile, for instance, delivers the Mediterranean aesthetic while weighing about 96% less than concrete or clay tile, so your home's frame never needs structural reinforcement. In New Westminster's 2927 annual sunshine hours, energy-efficient colors in Aged Copper Penny (solar reflectance up to 0.55) will show depth and patina authentically.

Aluminum requires virtually no maintenance. Unlike asphalt shingles, which lose granules and develop bare spots in freeze-thaw cycles (New Westminster logs about 38 per year), aluminum doesn't degrade chemically or UV-damage. Unlike clay or concrete tile, it won't crack, chip, or break from impacts or thermal stress. You may rinse off debris after storms or annually sweep leaves—the same routine as any roof—but that's it. The 30-year Alunar coating resists chalking and fading per ASTM D4214 and D2244 standards, so no power-washing or sealant reapplication. Asphalt roofs demand flashing repairs, re-nailing, and patch work from year five onward; wood shakes need fungicide treatment in Metro Vancouver's damp climate. Aluminum ends that cycle.

Installation typically completes in 2–5 days depending on roof size and complexity; most New Westminster homes finish in 3 days. One of aluminum's major advantages is weight: the Shake profile installs at just 0.58 lb/sq ft, so you can lay metal panels directly over your existing asphalt or wood roof in most cases—no tear-off, no waste disposal, no delay. A solid deck underneath is essential, and you'll add underlayment, but the job stays cleaner and faster than traditional re-roofing. Interlock Metal Roofing (BC) Ltd. has served the region since 1983, so your local installer knows New Westminster's building codes (ICC-ES ESR-1790 compliance) and can assess your existing structure in a site visit. This approach saves time, labor, and the environmental cost of landfill-bound shingles.

Yes. Aluminum is approximately 95% recyclable; at the end of its 50+ year service life, it retains significant scrap value and enters the recycling stream rather than a landfill. By contrast, an asphalt roof generates 10–20 tons of landfill waste per replacement cycle—and in New Westminster's climate, you'll replace asphalt every 15–20 years, creating multiple cycles over a 50-year span. Interlock's manufacturing in Delta, BC, and lightweight design (Slate at 0.41 lb/sq ft means lower transportation emissions) reinforce that advantage. The CALGreen-verified specification also recognizes reduced maintenance as a sustainability benefit: no chemical treatments, no repeated removals, no cumulative environmental cost. Installing once and keeping it for a generation outpaces the eco-footprint of asphalt or composite alternatives.