Roof Damage Repair

Water on the floor tells an owner something is wrong and nothing about where. The damage that matters sits on the roof, usually far from the stain, and it has a cause that can be named: wind took an edge, a drain stopped, a seam split, a flashing aged out. We trace damage on Queens, NY roofs one step at a time, from the symptom back to the cause, and we explain each step as we go.

What do storms do to a flat roof?

Wind damage begins at the edge, and hurricane damage adds sideways rain and debris; Maspeth saw six feet of water from Hurricane Sandy in October 2012. Cloudbursts show up ponding water, and Hurricane Ida's remnants on September 1, 2021 brought the city its first flash flood emergency.

The first moves after a storm are the same each time. Keep people away from wet areas, photograph the roof and the interior, and call before anything is moved. We dry the building in, then write the permanent repair to match the cause.

What fails slowly?

Failed flashing lets water in at walls and curbs. Open seams come from movement and standing water. Punctures come from foot traffic and dropped tools. Each repair cuts back to sound material and rebuilds the detail, rather than covering it with sealant.

Failures cluster. A wall with one open flashing often has others within a few feet, and a seam that opens near a pond usually has neighbors. When we find one, we walk the whole line.

What do snow and heat do?

About 29.8 inches of snow fall on the city in an average year, and snow and ice damage shows at drains and edges, while heat and UV damage cracks surfaces and shrinks membrane; LaGuardia, in Queens, recorded 107 degrees on July 3, 1966.

Both stress the same joints in opposite seasons: freeze-thaw opens them in winter and summer sun hardens the sealant that closes them.

What changes after a fire?

Fire damage reaches past the burn. Heat softens membrane, firefighting water soaks the layers and smoke residue stops patches from bonding. The roof is cleared as safe before anyone walks it, then dried in, then documented.

Insurance paperwork runs on its own track. We supply dated photographs, a roof plan and a scope with line items, and the owner and carrier decide coverage.

Commercial Roofing Questions

How do you find where a leak starts?

We work uphill from the stain, clear the drains, probe seams and flashings, and hose-test each suspect while someone watches inside. The stain is rarely under the opening.

When is a repair enough?

When the membrane is bonded, the insulation is dry and the damage is local. A moisture scan and a core cut show whether all three hold.

What should be done right after a storm?

Photograph the roof and the interior, keep people away from wet areas and call us. We dry the building in first and plan the permanent repair after.

Can an old storm still be the cause of a new stain?

Yes. Wet insulation can sit under a membrane for years. A moisture survey finds it.