Built to Last

Allmet’s proprietary formulas for stone coated steel metal tile roofing panels are built to stand the test of time. Made in the USA and Canada using the highest quality raw materials and coating and backed with a 50 year warranty, Allmet and Green Horizons stand behind their product and installation.

26-Gage Base Steel
Our panels are made from the best quality structural grade steel. They are rigid enough to tolerate reasonable loads while allowing profile designs without the risks of cracking. They are composed of up to 56% recycled steel.

Hot Dipped Zinc-Aluminum Alloy Galvanized Coating
The first barrier of protection on our rigid steel panels is achieved when the steel passes through a bath of molten aluminum-zinc alloy. This coating combines the protection and strength of both aluminum and zinc. Developers of the our particular aluminum-zinc alloy coatings have captured exposure data indicating corrosion protection of the underlying steel exceeds 50 years in most environments.

Acrylic Priming System
An acrylic coating is applied to both sides of the panel immediately after the application of the aluminum-zinc coatings to further enhance the longevity of the galvalume coating and underlying steel, and provides a uniform substrate that enhances the adhesion of the additional coatings.

Base Coat
The base coat is a petroleum based, highly UV resistant proprietary acrylic resin binder. This specially formulated coating is proprietary to Allmet. Immediately after the resin basecoat is applied, a choice of quality ceramic colored chips are applied and bond directly to the base coat. The base coat serves two functions – to bond the stone granules, and to offer even further protection from both water and light to the underlying acrylic and galvalume coated steel panels.

Ceramic Stone Granules
Colored stone granules offer both protective coating, and an attractive appearance. They further enhance the resistance to UV light while providing a wide array of standard and custom color choices thanks to our automated blending processes. These ceramic coated granules are sized and applied in such a way to insure maximum coverage of the base coat; therefore, allowing another layer of protection against weather erosion.

An acrylic over glaze with UV inhibitors is applied as a final coating that gives the granules a semi-gloss appearance. This extremely durable UV resistant acrylic finish bonds to the granules and encapsulates them with a coating that enhances the panel’s resistance to physical wear and damage.