Flat Roof Plywood Decking & Membrane Replacement – Weehawken NJ

Full flat roof decking replacement and new membrane installation on a multi-story commercial building in Weehawken, NJ overlooking the Manhattan skyline. The entire plywood substrate had deteriorated from years of water infiltration. Duraproof removed the failed membrane, replaced all decking, and installed a new high-performance flat roofing system.

The existing membrane had failed at multiple seams allowing water to saturate the plywood decking below. Upon removal, large sections of decking showed advanced rot and delamination, making full substrate replacement necessary. The elevated location and exposure to Hudson River winds required extra care in fastening and membrane termination details.

Phase 1: Membrane removal and decking assessment. Phase 2: Full plywood substrate replacement. Phase 3: Membrane installation and heat-welding. Phase 4: Detail work — flashings, penetrations, drains. Phase 5: Final inspection and water test.

The building now has a fully replaced structural deck and a seamless heat-welded TPO membrane that meets commercial roofing standards. All interior leaks resolved. 20-year manufacturer warranty and full Duraproof commercial workmanship guarantee.