As a Plainfield TPO roofing contractor, we install white TPO membranes on warehouses, terminals, and offices, as new roofs or recovers over a dry existing roof.
Plainfield TPO roofing fits some buildings better than others. These two cards set the roofs that take it well beside the ones that need another plan first.
These are the signs we see most often before an owner asks about a new TPO roof.
Four ways a TPO roof goes on. The core cuts and deck check pick the row that fits your building.
| Option | Where It Fits | What Goes Under It | Check First |
|---|---|---|---|
| Mechanically Attached | Large warehouses on steel deck | Insulation fastened with plates, sheet fastened in the laps | Fastener pull-out on older deck |
| Fully Adhered | Offices and roofs with heavy wind exposure | Cover board set in adhesive | Temperature limits for the adhesive |
| Recover Over Existing | One dry layer on a sound deck | New cover board over the old roof | Core cuts and the layer count |
| Tapered Upgrade | Roofs with ponding at drains | Tapered insulation sloped to each drain | Drain bowl height and edge heights |
Each row pairs a failure on the old roof with what the TPO system changes.
Old taped or glued laps let go after years of movement and cold.
Hot-air welds fuse the sheets into one piece, and each weld is probed before the section closes.
Black surfaces soak up summer sun over packed storage.
A white TPO surface reflects sunlight, lowering heat gain in the space below.
Low spots keep laps under water between rains.
Tapered insulation under the TPO sends water to the drains and keeps welds dry.
A split seam or punctured sheet over inventory needs a fast patch. Call and tell us where the water shows inside.
Call UsSend the warehouse address, and we will measure, core, and price the TPO system in writing.
Get A Free EstimateA TPO roof is planned from the deck up, then welded and tested one section at a time.
The crew maps the roof, marks every unit and drain, and pulls cores to see what the new sheet will sit on.
Boards are fastened or adhered to the deck, tapered toward drains where the survey found ponding.
Sheets are unrolled, relaxed, and hot-air welded; every seam gets a probe check, and test welds are cut each morning.
Curbs, pipes, and edges are flashed before dark, so the finished area is watertight overnight.
Some buildings suit another system better. These three come up most when TPO is a poor match.
Black rubber sheets suit roofs with many wall transitions and older taped details that need to flex through hard Indiana winters.
Plant roofs with grease exhaust and heavy units need membrane and pads chosen for what comes out of the stacks.
Standing-seam panels over retrofit framing give a flat terminal roof real slope and far fewer seams to watch.
Answers about TPO cost, cold weather, and recovering an existing roof.
TPO is a white thermoplastic single-ply sheet laid over insulation and heat-welded at the seams into one continuous membrane. On local warehouses it is usually fastened to the steel deck in wide rolls, which keeps installation moving on roofs that cover several acres.
Distribution buildings have huge, plain roofs, and TPO comes in wide rolls that fasten fast to steel deck with welded seams. The white surface trims heat gain over stored goods, and the layout adds walkway pads to dock-side units plus careful drain detailing.
Price follows roof area, sheet thickness, insulation type and R-value, tear-off versus recover, edge metal, and how many curbs, drains, and pipes need flashing. Crane or lift access and the attachment method also move it. A free on-site estimate sets the number after measuring.
Often, provided the old roof is dry, the deck holds fasteners, and the layer limit is not reached. A moisture survey decides what stays, a cover board goes over the old roof, and the TPO goes on top, keeping the building closed and tear-off debris down.
Welder settings change with temperature, so test welds are cut and pulled every morning. Cold sheets are unrolled and left to relax before fastening, frost comes off the deck first, and fastened systems take priority because adhesives and some primers need warmer days.
Call or send the address, and we will core the roof and price a TPO system in writing.