Joseph Jenkins, author of the award-winning Slate Roof Bible and publisher of the Traditional Roofing Magazine, has provided slate, tile, and asbestos roofing contracting services since 1968 in western Pennsylvania. Joseph Jenkins, Inc. also offers informative websites, complete with instructions, message boards, and advice, free to the public, such as Slate Roof Central and The Slate Roof Experts. Slate Roof Warehouse offers a wide variety of slate roofing tools, equipment and supplies available online. Snow Guard Warehouse offers the largest selection of snowguards in the US. Solder Warehouse offers everything you need for soldering roof flashings. Jenkins Slate Roof Consulting Services benefit slate roof owners, architects, insurance companies and engineers nationwide.