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Gerard Metal Shingles

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Product Summary

Gerard Roofing Technologies is the manufacturer of stone-coated metal roofing products and metal roof panels. Gerard uses 26-gauge primed, galvanized steel. The shingles are coated with stone granules. Gerard forms the metal shingles into shapes that closely resemble traditional roofing products, such as wooden shake and clay tiles. They also offer a line of roofing products that are plain, durable, metal panels. These panels feature raised seams to prevent water leaks.

Gerard makes the following shingle lines:

  • Gerard shake shingles
  • Gerard tile shingles
  • Canyon shake shingles
  • Guardian shingles
  • Granite ridge roofs
  • Standing seam roofs
  • Legacy roofs


In the United States, Gerard's shingles are marketed under Gerard Roofing Technologies; in Europe and Asia, the shingles are marketed under the Allmet product name. Gerard Roofing Technologies began manufacturing metal shingles in 1971. Gerard's corporate headquarters are based in Brea, California.

Gerard's Warranty

Gerard roofing products carry a transferable, lifetime limited warranty. The warranty is transferable to one subsequent owner. The roof is warranted for 50 years from the date of installation. The warranty covers winds up to 120 mph and hail damage from hail stones up to 2 1/2 inches in diameter. As with all products, we recommend you inspect the warranty carefully to make sure you understand its terms.

Roof Repair

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Contacting Gerard

Phone: 714-529-0407


Gerard Roofing Technologies
Corporate Headquarters
955 Columbia St.
Brea, CA 92821