Commercial roofing · New Jersey
Commercial Roof Repair in New Jersey
On a low-slope roof, the location of an interior leak tells you very little about where the water entered. Water travels between the membrane and the insulation, or along the top of a metal deck flute, until it finds a fastener hole or a seam in the deck.
Finding that entry point is the job. The patch is the easy part.
How we locate commercial leaks
- 1
Interior mapping
We note where water shows, what is directly above it, and the deck direction — on a metal deck, water runs along the flute, often a long way.
- 2
Surface survey
A walk of the suspected area and everything uphill of it, with photographs of every questionable detail.
- 3
Probe for wet insulation
Core cuts or moisture readings where saturation is suspected, so we know how far the wet area extends.
- 4
Test the details first
Terminations, curbs, drains, and pitch pockets before we ever suspect the open field.
- 5
Repair and document
Photographs before, during, and after, so there is a record of what was actually done.
Repairs we perform
- EPDM seam repair with cover tape and primer, not lap sealant alone
- TPO hot-air welded patches, probe-tested after welding
- Modified bitumen torch and cold-applied patching and re-flashing
- Curb re-flashing around HVAC and exhaust equipment
- Drain reseating, clamping ring replacement, and strainer installation
- Pitch pocket rebuild — cleaned out and refilled properly rather than topped off
- Edge metal and coping re-securement
- Wet insulation cut-out and replacement before the membrane goes back down
Watch out
Why patches keep failing
The most common failed commercial repair we are called to redo is a bucket of mastic smeared over a seam. Mastic is not compatible with every membrane, it does not move with the roof, and it hides the defect so the next person cannot see what is actually wrong.
The second most common: a patch installed over wet insulation. The roof is sealed, the water is now trapped, and it will resurface somewhere else within a year while the deck corrodes underneath.
Frequently asked questions
- Can you repair a roof in winter?
- Yes, with the right method. Adhesives and self-adhered products have temperature limits, so on cold days we use mechanically fastened or heat-welded approaches rather than forcing a product outside its range.
- How do you handle repairs on an occupied building?
- We coordinate access, protect interior areas below open work, and phase so nothing is left open overnight. Odor-producing methods are scheduled around occupancy.
- Should we repair or replace?
- If leaks are isolated, the membrane still has flexibility, and the insulation is dry, repair. If you are chasing several leaks a year, the insulation is wet in multiple areas, or the membrane is at end of life, repairs stop being economical.
Get a straight answer about your roof
Tell us what you're seeing and we'll inspect it, photograph it, and explain what it actually needs — repair or replacement.