Port Wentworth GA Roofing

Depends on the existing system, deck condition, and insulation moisture. If the deck is dry, the existing membrane has one layer, and parapet flashings are sound, a TPO recover over a separator sheet runs roughly 30-40% less per square than a tear-off. We core-sample for wet insulation first — recovering over saturated polyiso traps moisture and voids most manufacturer warranties. Tear-off is the right call when cores show >25% wet insulation or you're already at two layers.

Most older flat roofs in 31407 have parapet walls with failing through-wall counter-flashing. We strip the existing termination back to sound substrate, install new through-wall reglet or surface-mounted termination bar with sealant tape, and run TPO membrane up and over the parapet cap with prefabricated corners at every change of direction. Counter-flashing gets new lead-coated copper or stainless on coastal-facing exposures.

Mechanically attached 60-mil TPO over new polyiso typically runs $7-$10 per sq ft installed, depending on insulation thickness, deck condition, and parapet complexity. Modified bitumen comes in at $6-$9 per sq ft for two-ply systems. Recovers run 30-40% less than a full tear-off when the existing assembly qualifies. Every estimate breaks out membrane, insulation, accessories, and labor by the square so facilities managers can compare line-by-line.

Both, on most Hwy 21 warehouses we touch. Primary internal roof drains carry the design rainfall load — sized off the 48-inch annual at Port Wentworth — and scuppers act as overflow at the parapet to prevent pond depth from exceeding deflection limits during a tropical-system rain event. We re-set drain bowls with new clamping rings during membrane work, and add scuppers wherever the existing relief is undersized for IBC overflow code.

Annually at minimum, with a documented 5-year cycle for any property carrying a manufacturer NDL warranty. We walk the roof in spring before hurricane season and again in late fall, photo-document seams, terminations, drains, and rooftop equipment penetrations, and submit a written report with prioritized repairs. Catching a failed pitch pan or split seam at year four is a $400 fix; missing it through year seven is a deck rebuild.

Yes. We schedule material deliveries and crane setups outside peak container-traffic windows on Hwy 21, stage tear-off debris in roll-offs positioned to keep loading docks clear, and coordinate with facilities managers on tenant occupancy. Hot-work permits, fire-watch protocols, and odor-control planning for occupied spaces are standard on every commercial mobilization in 31407.

Salt is mild here — Port Wentworth is enough inland to be classified low salt exposure. The bigger issue is diesel particulate from container traffic and chemical fallout from neighboring industrial tenants, which can soften standard TPO formulations over time. We spec chemical-resistant TPO grades or modified bitumen on parcels directly downwind of fueling, paint, or solvent operations, and we flag any rooftop HVAC condensate runoff during inspections.