Marathon Roofing Products are one of the nation's leading manufacturing and distributors of commercial roof drains, vents, equipment and accessories. Breathers and vents are available to work on different types of material, and mainly used with PVC pipe and polyurethane foam applications, allowing for the air to breathe out of the roof. Marathon paver supports will allow you to create a flat, level decking surface. The paver supports can be used over installed pipes, cables that will still be accessible by removing the tile. These supports are available in 60 different options. Marathon roof drains are an all-purpose model that can be used for re-roofing applications and installations. Copper piping in these drains allows for all season use without any moving or cracking.