Wimsatt Building Materials Corporation is a distributor of quality building products that include residential & commercial roofing, siding, windows & doors, and composite lumber. As Michigan's largest distributor of residential roofing products, we offer a large selection of shingles with over 500 colors and styles in stock. We also offer peerless rooftop delivery backed by a rigorous safety program, will-call order fulfillment, and marketing support materials, for our customers - the contractors, builders, and remodelers of Michigan. The Wimsatt Traverse City story: Heading North, Wimsatt opened its Traverse City Branch in April of 2001. The branch delivers material to most of the upper lower peninsula - a huge geographic area spanning from Manistee to Alpena, up to Mackinaw City and everything in between.