Fix Flat Roof Dry Rot Issues
Fix Flat Roof Dry Rot Issues Wood doesn’t rot because it got wet once-it rots because it stayed damp for
- (929) 702-2949
- Service Area: Brooklyn, NY
Blisters don't reseal, and each heat cycle grows them, so the longer one sits the more roof it takes with it. The repair is to cut the blister out, dry whatever's underneath, and patch in matching membrane. Stomping it flat or smearing sealant on top does nothing but buy a few weeks.
A blister is a pocket where the membrane, or a layer inside it, has lost its bond to what's beneath and trapped air or moisture that swells every time the sun hits it. On EPDM and TPO it's usually a loss of adhesion; on a built-up or modified bitumen roof it's moisture or solvent gassing off between the plies. A few small, intact blisters out in the field aren't an emergency - but ones that have cracked open, or that cluster along a seam, are an opening waiting to leak.
A damage call usually starts with an owner who can see something's off but can't tell how bad it is - a dark ring on the ceiling, a soft area underfoot, a bubble that wasn't there last year. The first thing we settle is urgent versus cosmetic. A chalky EPDM surface or a thin scatter of field blisters can hold another season; a split seam over an occupied floor or wet board creeping under the membrane cannot. FlatTop spends every week on flat and low-slope roofs around Brooklyn - warehouse decks, apartment and office buildings, restaurant roofs with grease-baked curbs - so these failure patterns are recognizable the moment we're up there, and you'll know which category yours is in before anything gets quoted.
EPDM in particular shrinks as it ages - the sheet tightens over years of heat cycling and starts dragging at its own laps and at the flashing where it turns up a parapet or a curb. You'll see the seams stretched thin, the corners lifting, sometimes the rubber pulled back off a wall by half an inch. That tension is what opens the next seam, so caught early it's a re-flashing and re-securing job around the perimeter. Left to run, it peels and the next windstorm finishes the job.
Every membrane wears from the top down. A modified bitumen cap sheds its surface granules and the asphalt underneath starts to check in a fine, dried-out pattern. EPDM chalks and thins. A TPO top ply weathers until you can see the reinforcing scrim through it. None of this leaks the day you spot it, but it's the roof telling you how much service life is left - and it's the line between a membrane that can still take a protective silicone or acrylic coating and one that's already past saving.
A storm rarely tears a flat roof open all at once. Wind gets under a loose edge or a flashing termination and works it back over the next few blows; hail bruises the membrane in spots that don't crack until the following freeze; a hard gust shoves a rooftop unit on its curb and breaks the seal around it. The damage hides on the surface and tends to surface inside weeks later. After a bad blow it's worth a look from up top, and if it turns out to be storm damage, we photograph and write it up in the form an adjuster needs.
Fix Flat Roof Dry Rot Issues Wood doesn’t rot because it got wet once-it rots because it stayed damp for
Fix Flat Roof Wind Damage Today Last night’s 50-60 mph gusts along the East River left roof edges flapping in
Fix Blown Off Flat Roof Sections After that 60‑mph gust front that tore through Brooklyn last March, I counted nine
Repair Flat Roof Surface Cracking Most people climb onto their flat roof, see a network of cracks spreading across the
Tell us what you're seeing and when it started - water standing after rain, a bubble or crack on the surface, a soft area underfoot, a stain that showed up inside. The symptom and the timing narrow it down before anyone's on a ladder.
We walk the whole roof, not just the spot you flagged, reading the seams, flashing, drains, the open field, and the deck wherever it's visible. An infrared scan or a few test cuts show how far any wet area has crept underneath.
You get it in writing: every problem we turned up, how serious each one is, and whether it's a repair, a coating, or a section that's finished - with a price beside each so you can decide what to take on and what to hold.
Whatever you green-light, we do in your roof's own system - Carlisle, GAF, Firestone, Mule-Hide, whatever EPDM, TPO, or mod-bit is already up there - and document the work before and after, so you've got a record for your files or an insurer.