Up On The Roof MD/DC/NoVA Rep Agency representing some of the most trusted names in the roofing and waterproofing industury. Soprema - Roofing, Waterproofing and Wall Protection Products. Duro-Last - Premanufactured PVC Roofing Hunter Panels - Polyiso Insulation, Nail Board and Vented Nail Board Insulation DEXcell Cover Boards (National Gypsum) - Glass Mat Gypsum Roof Boards & Cement Roof Boards Aquafin - Waterproofing and Protective Coatings for concrete, masonry, brick and stone. AL13 - Aluminium Composite Wall Panels