As a Richmond flat roof repair contractor, we reweld TPO laps, tape EPDM seams, and patch modified bitumen on offices, stores, and shops.
A Richmond flat roof repair contractor starts by checking whether the damage is local. These signs tell you which way the roof leans before anyone opens a seam.
Low-slope roofs fail at the same handful of details. The feature card is the condition we open first on nearly every visit.
Heat-welded TPO and PVC seams fail where the weld never fused fully or where three sheets meet at a T-joint. A probe along the lap finds the open run, and dirt or an oxidized surface has to come off before a new weld will hold.
Usually MeansA cleaned seam rewelded, or a welded cover strip past both ends.
Trapped moisture swells under the plies in summer heat and cracks once foot traffic or sun opens the top.
Clogged strainers, a drain set too high, or crushed insulation holds water against the seams for days.
RTU curbs and skylight curbs open at the inside corners, where flashing stretches as the roof moves.
Dropped screws and tools pierce the sheet along service routes from the hatch to each unit.
Each membrane gets its own repair method. These are the four repairs that fix most flat roof leaks around Richmond.
TPO and PVC laps are cleaned and rewelded with hot air. EPDM seams are scrubbed with primer to lift talc and dirt, then closed with seam tape or a cured cover strip that runs a few inches past each end.
Cracked blisters on built-up and modified bitumen roofs are cut open, dried, and covered with matching plies once the layers lie flat. Loose single-ply areas are cut, re-adhered, and patched.
Shrunken pitch pan filler is topped with pourable sealer, or the pan is swapped for a premolded boot. Cracked pipe boots and loose clamps get a new boot welded or taped to the membrane.
Low areas get tapered crickets with new membrane over them. Drain bowls set too high are reset lower, crushed board is replaced, and a scupper can go through the parapet where water collects at the edge.
Fixing a flat roof at the seam or curb keeps the rest of the membrane working and the building running below it.
Tell us the roof type, where the stain is, and whether water stands after rain. A roofer will walk the membrane and check the seams uphill of the drip.
The order matters on a membrane roof, because a patch over wet board or roof cement fails early.
The walk covers parapets, curbs, drains, and every pipe through the sheet before the open field. Moisture readings around each leak show whether the board underneath is wet.
Old roof cement and tape are cut out or cleaned off, because they block new welds and seam tape. Wet board is removed and replaced with firm, dry insulation.
Rounded-corner patches go down in the roof's own membrane: hot-air welds on TPO and PVC, primed tape on EPDM, and heat-fused cap sheet on modified bitumen.
Every new lap is probed for gaps and photographed. Nearby seams, boots, and drains that look close to failing go on the notes you receive.
Flat roof problems often share a building with these other repairs.
When the stain sits far from any seam, commercial roof leak repair maps the water path along the deck first.
Buildings with a metal high roof draining onto a membrane low roof need metal roof repair at the joint too.
Membrane softened by grease or process oil around fans calls for industrial roof repair with a resistant patch.
Answers on the flat roof repairs owners ask about most.
TPO and PVC seams are rewelded with heat or covered with a welded strip. EPDM takes primer and seam tape or a cured cover strip, modified bitumen gets a heated or adhered cap sheet patch, and built-up roofs have the failed plies cut out and rebuilt. Every seam repair runs a few inches past the open section on both ends.
First find why the water sits there: a clogged strainer, a drain set too high, a sagging deck, or crushed board. Clearing debris fixes the simple cases. Low spots that stay wet get tapered crickets, a reset drain bowl, new firm insulation, or a scupper through the parapet.
Blisters on built-up and mod bit roofs are cut open, dried, and patched with matching plies. Small, firm ones away from laps are watched at each visit and repaired once they crack, sit on a lap, or grow. Single-ply roofs show loose areas instead, which are cut, re-adhered, and patched.
Yes, with the same membrane as the roof over a cleaned area larger than the hole. The roofer probes the hole, checks the insulation for water, swaps any wet board, then welds or adheres a patch with rounded corners. Walkway pads along service routes stop most repeat punctures near units and hatches.
Pitch pans are refilled with pourable sealer or replaced with a premolded boot. Cracked pipe boots are swapped for new ones sized to the pipe. Split curb corners and open laps at RTU curbs get new flashing run up the curb and tucked under the counterflashing.
Send the address and a note on the leak, and we will check the seams, curbs, and drains on your membrane roof.
Leave a name and number and a roofer will call you back about the leak or damage.
Or call now: +1 (364) 205-6896
