Interlock Roofing Ltd. has introduced Metal Siding and wall cladding panels, bringing its lifetime aluminum system from the roofline to exterior walls. The new panels are produced from the same heavy-gauge aluminum, finished with the Alunar Coating System, and available in the same profiles, colors, and trims as Interlock's roofing products, enabling a home's roof and walls to share a single color-matched aluminum finish. Recent installations include custom homes in Whistler, British Columbia.
By applying the same material system to exterior walls, the company now allows a home's roof, chimneys, dormers, gables, and walls to share one aluminum composition. This approach removes compatibility concerns that can arise when roof and wall products originate from different manufacturers, simplifies installation, and unifies warranty coverage across all exposed surfaces.
"Homeowners already trust our aluminum roofing to protect their home for a lifetime," said Scott Plumptree, Director of Marketing, 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. Non-combustible aluminum construction carries a Class A fire rating, a notable characteristic for properties in wildfire and ember-zone regions.
Because aluminum does not absorb moisture, the panels will not rot, warp, or crack through repeated freeze-thaw cycles. The factory-baked finish resists chalking and fading, eliminating the need for repainting over the product's service life. The Aluminum Wall Cladding system also resists insects and coastal salt-air corrosion. 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.
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 signifies a strategic move to offer a complete exterior envelope solution, leveraging the company's established reputation in aluminum roofing. For homeowners and builders seeking a unified, durable, and low-maintenance exterior, this product line provides a compelling option that simplifies material selection and long-term care.
The introduction of aluminum wall cladding also addresses growing demand for fire-resistant and sustainable building materials. With its Class A fire rating and high recyclability, the system aligns with building codes in wildfire-prone areas and environmental goals. By using the same coating and color system as its roofing, Interlock ensures consistency in appearance and performance, reducing the risk of mismatched warranties or installation issues that can occur with mixed-material exteriors. This integrated approach may influence how custom homes are specified, particularly in regions like Whistler where aesthetic cohesion and durability are paramount.
