Interlock Roofing Ltd. has introduced Metal Siding and aluminum wall cladding panels, extending its lifetime aluminum system from the roofline to exterior walls. The new panels, produced from the same heavy-gauge aluminum and finished with the Alunar Coating System, are now available in the same profiles, colors, and trims as the company's roofing products. This expansion enables a home's roof, chimneys, dormers, gables, and walls to share a single color-matched aluminum finish, simplifying installation and warranty coverage across all exposed surfaces.
The debut comes with recent installations on custom homes in Whistler, British Columbia, showcasing the system's application in high-end residential construction. Interlock's move into wall cladding follows its established reputation in aluminum roofing, engineered to last the life of a structure. By applying the same material system to walls, the company aims to remove compatibility concerns that arise when roof and wall products originate from different manufacturers.
"Homeowners already trust our aluminum roofing to protect their home for a lifetime," said Scott Plumptree, Director of Marketing at Interlock Roofing Ltd. "Extending that same panel, coating, and color system to siding means the entire exterior performs to one standard and reads as one intentional design."
Interlock Metal Siding is offered in four architectural profiles: Slate, Cedar Shingle, Shake, and Standing Seam, which can be combined within a single color family. The panels are formed from heavy-gauge aluminum and finished with the Alunar Coating System, a multi-layer architectural coating that incorporates Cool Roof infrared-reflective pigments designed to reduce solar heat gain on walls. This energy-efficient feature can lower cooling costs for homeowners, particularly in sun-exposed regions.
A key implication of the product is its non-combustible aluminum construction, which carries a Class A fire rating. This characteristic is notable for properties in wildfire and ember-zone regions, such as the wildfire-prone areas of British Columbia and the western United States. As climate change increases wildfire risks, building materials that resist ignition become critical for home safety and insurance premiums.
Because aluminum does not absorb moisture, the panels will not rot, warp, or crack through repeated freeze-thaw cycles, making them suitable for Whistler's alpine climate. The factory-baked finish resists chalking and fading, eliminating the need for repainting over the product's service life. The system also resists insects and coastal salt-air corrosion, extending its applicability to coastal environments.
Four-way interlocking panels install over most existing wall substrates, fitted by certified installers, and require no painting, sealing, or staining throughout their lifespan. The aluminum is largely recycled in content and approximately 95 percent recyclable at end of life, contributing to sustainability goals in construction.
Interlock Metal Siding and aluminum wall cladding are available across the United States and Canada through certified local installers, for both new construction and re-cladding projects. The expansion into wall cladding allows homeowners to achieve a seamless exterior that resists fire, weather, and wear, with a single warranty covering roof and walls. For more information, visit interlockroofing.com/siding.
