Roofing index / 21
Membrane & asphalt-based roof systems
Several systems can cover a low-slope roof. The right comparison starts with the building and the condition of the assembly.
01 / Considerations
EPDM, TPO and PVC
EPDM is a synthetic rubber membrane; TPO and PVC are thermoplastic membranes whose seams are typically heat welded. Their details, compatible materials and repair methods differ. Selection must consider the roof's use and exposure, not color alone. A low-slope roof assessment establishes the context for comparing these systems.
02 / Considerations
Modified bitumen and built-up roofing
Modified bitumen uses reinforced asphalt-based sheets in an assembly suited to the chosen product. Built-up roofing uses multiple plies with bituminous layers and a suitable surface. These are distinct approaches, with installation and repair requirements that vary. Existing commercial roofs should be identified correctly before compatible work is proposed.
03 / Considerations
The details decide the repair
Seams, drains, perimeters and equipment curbs can matter as much as the broad membrane field. Leak investigation should assess those details and possible moisture below. Evaluate drainage, insulation and attachment when comparing repair, restoration or replacement; system suitability requires project-specific confirmation.
Explore property considerations for East Hampton roofers and Roof care for Sag Harbor buildings, or see the full East End service territory.