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Commercial Roof Membrane Installation, Recover and Replacement
Commercial roof membrane work at Foundry Roofing means we install, replace and recover TPO, EPDM, PVC and modified bitumen on flat and low-slope commercial and multi-family roofs across Queens.
Tear-off, recover, seam repair and inspection.
Scope comparison
Recover, tear-off or seam repair: what your existing membrane needs
We cut a core and check for moisture before quoting any scope.
| Your roof | Option 01Recover over existing roof | Most commonTear-off and new membrane | Option 03Seam and flashing repair |
|---|---|---|---|
| When it fits | One dry layer | Wet insulation, two layers or spreading blisters | Sound field, failed seams |
| Checked first | Layer count | Moisture spread | Heat-welded or taped seams |
| What stays | Old membrane, under new cover board | Nothing above the deck | All but the failed seams and flashings |
| Disruption | Low | Highest, dried-in daily | Short visits |
Failed seams or flashings alone call for a membrane repair instead of a new roof, and the core cut and moisture check can be booked by itself.
Multi-familyLeads our membrane work
Building types
Membranes on Queens buildings, from apartment blocks to warehouses
Multi-family roofs lead our membrane work. On apartment buildings and condominiums we fully adhere the membrane with low-odor adhesive, so nothing is drilled into the deck above occupied units, and boards and tenants keep rooftop access throughout.
Office, retail, warehouse and industrial spans take mechanically attached single-ply, fastened through plates into the steel deck at each seam lap. Under heavy rooftop equipment and foot traffic, two-ply SBS modified bitumen holds up better. Our single-ply page has TPO, EPDM and PVC compared for your building.
Warranty
Keeping the manufacturer warranty valid
Every commercial roof membrane we install carries two kinds of coverage.
Manufacturer warranty
Membrane and, on system warranties, insulation and accessories. We register it at completion.
Our workmanship
Seams, flashings and terminations we installed.
What keeps it valid
Scheduled inspections, and no unapproved patches or penetrations.
Owners planning further ahead can read how a long-term commercial roof warranty is set up and kept.
Commercial roof membrane FAQ
Questions boards and owners ask about membrane jobs
Can a new membrane go over the existing roof?
Yes, when the core cut shows one existing layer and dry insulation. Wet insulation or two layers already in place mean a full tear-off down to the deck.
Do residents or tenants need to leave?
No. We work in sections, dry-in each one before the crew leaves, and schedule noisy tear-off around hours agreed with the board or building manager.
How long does a mid-size building or warehouse take?
It depends on the scope: recover runs faster than tear-off, and size and access matter. Your written estimate lists the working days before you sign anything.
Free estimate
Your free membrane estimate starts on the roof
We walk the roof, check the existing membrane and quote recover against tear-off in writing, at no charge. Call (929) 419-4893 or send the form.
- We walk the roof
- Check the existing membrane
- Recover vs tear-off, in writing