Hot Black Roof Over Cooled Space
- You See
- A dark membrane above offices or retail that stays hot to the touch all summer.
- What It Means
- A white TPO surface reflects much of that sunlight, which helps buildings running air conditioning under the roof.
Single-Ply TPO Roofs
Radcliff TPO Roofing Contractor
Find Out Whether a White Welded Membrane Fits Your Flat Roof
As a Radcliff TPO roofing contractor, we install white TPO membrane on flat and low-slope commercial roofs, welding every seam and flashing each curb, drain, and wall.
- Seams
- Hot-Air Welded, Probed
- Attachment
- Fastened, Adhered, or Induction
- Fits
- Warehouses, Retail, Offices, Schools
- Surface
- White, Reflects Sunlight
Is This Roof a Fit for TPO?
A Radcliff TPO roofing contractor starts by comparing TPO with the two other single-ply sheets on the same roof. The raised column is TPO.
What We Install
TPO
- Seam Method
- Hot-air welded into one piece
- Usual Color
- White
- Sun on the Surface
- Reflects it
- Oils and Animal Fats
- Moderate resistance
- Common Buildings
- Warehouses, retail strips, offices
EPDM
- Seam Method
- Primer and seam tape
- Usual Color
- Black, with white offered
- Sun on the Surface
- Absorbs it when black
- Oils and Animal Fats
- Swells on contact
- Common Buildings
- Older flat roofs, cold rooms
PVC
- Seam Method
- Hot-air welded
- Usual Color
- White or gray
- Sun on the Surface
- Reflects it
- Oils and Animal Fats
- Strong resistance
- Common Buildings
- Restaurants, plants with exhaust
Flat Roof Conditions That Lead Radcliff Owners to TPO
These conditions on an existing flat roof often point toward new TPO, either over the old roof or after a tear-off.
Open Laps on an Old Membrane
- You See
- Seam edges lifting along the laps, with patches already covering several of them.
- What It Means
- Welded TPO laps fuse into one sheet, so new seams carry no adhesive or tape that can let go with age.
Loose Sheet at the Perimeter
- You See
- Membrane fluttering or billowing near parapets and edge metal on windy days.
- What It Means
- Wind pulls hardest at corners and edges. New TPO goes on with tighter fastener rows there than in the middle of the field.
Leaks at Rooftop Unit Curbs
- You See
- Water stains under the HVAC units and caulk smeared around the curb corners.
- What It Means
- TPO curb flashing is welded to the field and capped with pre-formed corners, replacing the caulk joint that kept failing.
Commercial TPO Roofing Options for Radcliff
Deck type, wind exposure, and the existing roof decide which of these TPO installs fits your building.
Mechanically Attached TPO
Plates and screws in the seam laps hold the sheet to steel decks on warehouses and large open roofs. It is the usual answer to mechanically attached vs fully adhered TPO on a big, simple field.
Fully Adhered TPO
Bonding adhesive runs across the whole sheet. Odd roof shapes, wind-exposed edges, and buildings where a quiet finish matters suit this method.
Induction-Welded Plates
Steel plates screwed to the deck are heated from above and fused to the sheet underside, which cuts the number of fasteners needed in the seam laps.
TPO Recover Over an Existing Roof
A TPO recover over an existing flat roof works when the old membrane and insulation are dry. Wet boards found by core cuts get cut out first, then a cover board goes down.
Benefits of a New TPO Roof
Owners list the left column before the work. The right column is the same roof with new TPO on it.
Before The New Roof
- Dark membrane soaking up summer heat
- Taped or glued laps peeling at the edges
- Caulk joints at every rooftop unit curb
- Membrane loose under the drain ring
After The New Roof
- White surface reflecting sunlight off the roof
- Welded laps that fuse into the sheet itself
- Curbs wrapped in welded flashing with pre-formed corners
- Sheet clamped under the drain ring over a tapered sump
Seams Opening Along the Laps?
Open laps let water travel under the sheet before it shows inside. A roof walk shows whether the field can be saved or needs new TPO.
- Every Lap Probed
- Core Cuts Where Wet
- Plain Repair or Replace Call
How Your Radcliff TPO Roofing Contractor Installs the Roof
TPO roof installation in Radcliff, KY follows this order on every building, from the first walk to the last probed seam.
Inspect Your Roof
Crews walk the field, probe the old laps, and take core cuts or a moisture scan to find wet insulation before any choice between recover and tear-off.
Prepare the Deck
Wet boards come out, loose curb flashing comes off, and a cover board or tapered insulation goes down so water runs toward drains and scuppers.
Weld the Seams
How TPO roof seams are welded: laps get cleaned, a test weld is pulled apart by hand to set heat and speed, then the walk-behind welder runs the lap.
Flash and Probe
Curbs, walls, drains, and pipes get welded flashing, T-joints get patches, and a blunt pick probes every seam edge for gaps along its full length.
Related Roof Systems for Radcliff Buildings
Some roofs fit TPO better than others. These pages cover the systems owners most often compare with it.
EPDM Roofing
Black rubber sheets with taped seams suit wide flat roofs and cold rooms where a dark surface helps snow clear.
Flat Roofing
Parapet roofs that pond between drains need tapered insulation planned with the membrane, whichever sheet goes on top.
Industrial Roofing
Plant roofs with grease or chemical exhaust often pair TPO in the field with a resistant sheet around the fan curbs.
TPO Roofing Questions in Radcliff
Answers on where TPO fits, how it attaches, and the details that keep it dry.
Fit
Where does TPO roofing fit on commercial buildings?
TPO is a white thermoplastic sheet laid in wide rolls on flat and low-slope roofs, with seams fused by hot air so each lap becomes part of the sheet.
It suits warehouses, distribution buildings, retail strips, offices, and schools with open roof areas and modest equipment. Restaurants and plants venting grease often get PVC or a protection layer around those fans.
Can TPO go over an existing flat roof?
Yes, over one existing roof whose membrane and insulation are dry and whose deck still holds fasteners. Wet insulation found by core cuts gets replaced, a cover board goes down, and loose curb flashing comes off first.
Two roofs already in place or a damaged deck push the job to tear-off, and the local building official has the final word.
Attachment
How is a TPO roof attached to the deck?
Three ways: plates and screws in the laps, full adhesive across the sheet, or induction-welded plates heated through the membrane. Deck type, wind exposure, and building use pick the method. Fastener rows run closer together along parapets and edge metal than in the field, because wind pulls hardest at the corners and perimeter.
Seams and Details
How are TPO seams welded and tested?
A walk-behind hot-air welder runs the field laps, and a hand welder handles corners, curbs, and flashing. Each lap is cleaned first, and a test weld is pulled apart to set heat and speed.
Crews repeat test welds as the roof warms through the day, then probe every seam edge with a blunt pick and patch each T-joint.
Which TPO details matter most at curbs, walls, and drains?
Flashing at penetrations, since that is where most TPO roofs leak. Rooftop unit curbs get membrane welded to the field and capped with pre-formed corners. Parapets are flashed up the face under coping or counterflashing, drains clamp the sheet under the ring over a tapered sump, and pipes get pre-molded boots with stainless clamps.
Hire a Radcliff TPO Roofing Contractor
Send us the roof size and what sits on it. We will walk the roof, check the insulation, and tell you whether TPO fits.