Home - Roofer's Mart Inc. roofer, roofing, supply, firestone, karnak, tamko, certainteed, vinyl, roofing contractor, residential, commercial, siding, windows At Roofers Mart, you'll find a full line of exterior products from manufacturers like Firestone, Karnak, Tamko, CertainTeed, Royal Vinyl and many more, all of which are kept in perfect factory condition, ensuring that you receive the level of quality you need to get the job done right.