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01 Proof Roof 119

Proof Roofs Custom Preassembled Roofs for Bay and Bow Windows

Mission Statement
At Proof Industries, we pledge to use the highest quality raw materials and the best manufacturing techniques to produce a product that is fast and easy to install. Our Proof Roofs™ for bow and bay windows and door canopies are preassembled and delivered in one piece, ready to install. Click the PROOF INDUSTRIES Logo above to visit the PROOF INDUSTRIES, INC. website.

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Company Profile

Founded in 1989, Proof Industries, Inc. has been manufacturing preassembled roofs for bay and bow windows, door canopies, and decorative/architectural products designed to enhance the beauty of residential and commercial structures while protecting and increasing their value.

Proof Industries, Inc. has established a reputation as the premiere manufacturer of Custom Designed Preassembled Bay and Bow Window Roofs, Door Canopies, and Decorative/Architectural Products. Proof Roofs™ are preassembled roofs fully constructed and delivered as one-piece units, ready for immediate installation, usually in less than 30 minutes. Our standard roofs are constructed with exterior grade plywood and clad in copper or aluminum with available options. These include a full range of KYNAR® 500 color finishes as well as architectural crown and fascia details. Proof Roofs™ are precision engineered and constructed to fit all major bay and bow window manufacturers’ published standard widths and projections as well as custom applications. Special orders are welcome as we will build to fit almost any angle or difficult height restrictions.

Our products are distributed exclusively through building material and specialty dealers. Our manufacturing facilities are located on Long Island, New York.

Proof Industries, Inc. manufactures three custom-styled designer roofs.

Islander: Straight panel, low profile
Empire: Straight panel, high profile
Liberty: Curved panel, high profile


  • All joints are sealed for leak-proof performance
  • Built-in roof flashing and nailing flange
  • Islander and Empire models are complete with plywood sub-structure clad in copper or KYNAR® 500 aluminum color finishes
  • Liberty models are complete with plywood base fabricated in 20 oz. copper or KYNAR® 500 aluminum color finishes

Proof Industries also manufactures high quality decorative/architectural products that include Canopies for Doors, Cupolas, Eyebrows, Louvers, Vents, and more

Need more information? Jilco's experienced design team and friendly representatives are standing by, ready to answer your questions. CONTACT JILCO


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