Interlock® Lifetime Roofing Systems

The last roof you will ever need.

Choose from our textured Slate, Cedar Shingles, Shake, Mediterranean Tile, and Mechanical-Lock Standing Seam Roof Panels​.


All of our aluminum roofing systems showcase our total commitment to protect and beautify your home for life and to safeguard the environment. Our roof systems will provide you with a lifetime of value.

Interlock® Slate

Slate roof shingles that has the look of traditional roof tiles.
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Interlock® Cedar Shingle

New, unique, affordable, and revolutionary metal roofing, designed to provide the look of cedar shingles without the problems of rot and discolouration.
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Interlock® Shake

The natural beauty of cedar shake roofing. Lifetime performance.

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Interlock® Mediterranean Tile

Inspired by the luxurious look of traditional Mediterranean tile, without the heavy weight.

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Interlock® Standing Seam

Mechanical-lock Standing Seam Metal Roofing.

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Interlock® Solid Copper

Copper Roofing is without question one of the best of all premium roofing products.

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Alunar Coating System logo
CRRC Cool Roof Rating Council rated product

Cool Roof Coating

All Interlock Lifetime Metal Roofing Systems are protected with the Alunar® Coating System.  The cool roof pigment technology helps reduce heating and cooling costs for your home.

Alunar Coasting System diagram

Interlock’s (IR) reflective surface can help reduce your attic's temperature during summertime heat, saving you up to 25% on your cooling costs†.


The Alunar Coating System is a full 70% PVDF coating incorporating a unique acrylic blend and 70% polyvinylidene fluoride (PVDF). Designed as a premium finish to provide outstanding color stability, gloss retention, exceptional abrasion resistance, scratch resistance, and chemical resistance. Alunar is also formulated to be used in coastal environments. This high-performance coating is engineered to reduce the carbon footprint and lower the heat island effect.


Alunar uses infrared (IR) reflective or “cool” pigments to comply with industry energy conservation initiatives. Using “cool” pigmented coatings can help reduce energy consumption for conditioned living spaces.


† As per Cool Roof Rating Council (CRRC) and Oak Ridge National Laboratories (ORNL)

Interlock® Colors

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