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Fiberglass Laminate Shingles

Asphalt Shingles in North Vancouver

If you are thinking about a new asphalt shingle roof and want the full protection offered by a shingle manufacturer’s warranty, then you face the following challenge:

Hiring a roofing contractor who is capable of designing and installing a roof system in accordance with a manufacture’s specific warranty requirements.

The warranty period offered by the shingle manufacturer, whether 30, 40, 50 years or even lifetime, is based on shingle performance when tested under the conditions defined in their installation requirements.

Inadequate and unbalanced soffit to roof ventilation is the most frequently ignored or misunderstood requirement for material warranty.

Shingle manufacturers cannot be held liable if the contractor installing the shingles is not aware or chooses not to install the shingles in accordance with the manufacturer’s installation requirements.

At Westcoast Roofing Systems we install to manufacturers’ requirements. Westcoast has the rare distinction of maintaining the highest level installer certification for a number of major roofing material manufacturers, including CertainTeed and GAF. Westcoast is proud to be a Master Elite Contractor with GAF, an honour only awarded to the top 2% of Roofing Contractors in North America.

With these qualifications, Westcoast is able to provide customers with the best warranty in the industry. Through more than 40 years in the industry, Westcoast Roofing Systems has earned the unique ability to provide this value to our customers.

Industry Leading Certifications


Converting a cedar roof to an asphalt roof is not always recommended.

The plywood underlayment and asphalt shingles reduce the breathability of attic cavities causing the relative humidity in the attic cavity to increase. This risk of condensation, the leaky condo syndrome, must be managed by introducing the appropriate amount of soffit and roof ventilation in accordance with BC building code. This modification in ventilation cannot be achieved in all cases, meaning not all cedar roofs should be converted to asphalt roofs.

Westcoast Roofing Systems are specialists in Vancouver for Fiberglass Laminate Shingle Roofs.

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From cedar shakes to laminate shingles or slate tiles, we have extensive experience in all types of sloped roof systems.

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We can help you with various types of flat roof systems for your industrial, commercial or residential project.

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From rain screen wall assemblies to sheet metal fabrication, we are experts in building envelopes.

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We can help with all manner of leak investigation, including roofs, chimneys, skylights and masonry.