Dunn Lumber Blog

Installation Guide For GAF Shingles

Spahn & Rose Lumber Co. offers more much than just lumber. With a wide variety of interior and exterior building materials, Spahn & Rose has partnerships with industry-leading brands, such as GAF, one of the country’s most popular shingle brands. With extensive knowledge of GAF shingles, Spahn & Rose experts designed a guide to help contractors in Iowa, Illinois and Wisconsin install GAF Timberline® roofing shingles, part of the GAF Roofing System.

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