Profile: Louis T. Ollesheimer & Son, Inc. is a building material supplier that specializes in building products for the residential and commercial roofing contractor. We carry a full line of roofing, siding, windows, doors, fasteners and hand tools. We also provide air powered tools, brooms, brushes, roofing systems, cement, concrete pavers, edge metal systems, material handling equipment, metal roofing panels, power tools, roofing repair kits, shingles, and ventilation products.