GAF-ELK Roofing Products – Timberline Series Shingles
Timberline series asphalt shingles are a laminated shingle. Timberline was one of the first GAF-Elk’s laminated asphalt roofing shingles ever made. They are laminated because due to the way they are made. They have two separate shingles, laminated shingles are actually two different shingles laminated together. These two laminated shingles are sealed together to make …
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