IDP Contracting 

IDP Contracting is the lead Residential and Commercial Roofing Contractor based in the state of Maryland with extended operations to Virginia and Washington DC

We specialize in Modified Built-Up, Single-Ply membranes, Standing Seam Metal Roof, and Asphalt Shingle roofing systems.

TPO 

TPO is a single-ply roofing membrane that offers excellent performance at a cost-effective price. 

EPDM is an extremely durable synthetic rubber roofing membrane (ethylene propylene diene terpolymer) widely used in low-slope buildings in the United States and worldwide 

Traditional bituminous roofs were made with roofing felts and several mopped layers of hot asphalt, surfaced with gravel, to create a Built-Up Roof (BUR)