Boral. Creating a new poly-ash category of exterior trim, TruExterior Trim has earned a Cradle to Cradle–certified Silver designation. The material’s composition is a blend of proprietary bio-based polymers and coal combustion product, comprising 70% recycled content. The maker says the blend helps ensure the material’s consistency and prevents moisture cycling and absorption. 678.639.7004. www.boraltruexterior.com.
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