Aug 17 2012, by admin in

Highly Reflective Roof Coatings

Roof with site applied Transmet's Aluminum FlakesTransmet Aluminum Flakes have been successfully used since 1980 in many roofing applications. Over 100 million square feet of roofing surface has been covered by our Aluminum Flakes.

Transmet Aluminum Flakes have a total solar reflectivity of 80%. The unique high purity aluminum alloy that Transmet uses is extremely durable and will maintain its reflectivity. Transmet Aluminum Flakes are 100% aluminum. Typical coverage is 3-lbs per 100 square feet.

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Protective surfacing applied to un-reinforced type III asphalt 
Age of samples in photograph = 14.6 Years
Aged Roofing Materials Comparison


Transmet sells Aluminum Flakes in two (2) main applications which are Factory Applied and Site Applied.

Factory Applied flakes are applied in the shingle or roll roofing manufacturing plant. In most cases only minor modifications are needed in standard equipment to apply the flakes.

Site Applied Roofing flakes are applied at the building site. Typically a cold process roofing material is built up with layers of fiberglass or polyester. After the final coating of asphalt is applied flakes are deposited onto the surface of the roof.


Cold Asphalt & Transmet Aluminum Flakes being applied to roof

Cold Asphalt & Flakes being applied to roof December 2010

Transmet's Aluminum Flakes being applied to asphalt.

Asphalt application process

Reflective cool roof using Transmet's Aluminum Flakes

Half the way done with the reflective aluminum flakes

Asphalt application process to site apply Transmet's aluminum flakes for a reflective cool roof.

Asphalt application process


Transmet is currently involved in the development of colored aluminum flakes and high emissivity/high reflectivity flakes. In our R&D facility Transmet is developing thin flakes that will apply at 2-lbs per 100 square feet.

For more information about our flakes in high reflective roofing applications you may visit the aluminum now article roofing chips article or the U.S. Department of Energy article.

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