Quick tips
Choose thermoplastic polyolefin (TPO) over polyvinyl chloride (PVC) roofing.
Use mechanically fastened or ballasted systems.
For adhesives, prefer water-based options.
Avoid roofing with halogenated flame retardants.
Avoid silicone or per-and polyfluoroalkyl substances (PFAS) coatings, especially those with polyvinylidene fluoride (PVDF).
Opt for modified bituminous membranes over conventional built-up roofing (BUR).
Prioritize products with Health Product Declarations (HPDs).
Ranking
Thermoplastic Polyolefin (TPO) Membrane Roofing
Ethylene Propylene Diene Monomer (EPDM) Membrane Roofing
Polyvinyl Chloride (PVC) and KEE Membrane Roofing
Modified Bitumen Membrane Roofing
Cold Fluid-Applied PMMA Roofing
Conventional Built up Roofing (BUR)
Spray Polyurethane Foam (SPF) Roofing