Perimeter metal
Coated metal at the perimeter and around drains to hold the sheet down in wind.
Flat Roofing
TPO Roofing Harrison, NJ
A local roofing contractor in Harrison can put a new TPO membrane on a flat roof, giving a reflective, watertight surface that stays cooler than old tar or rolled roofing. One call to (551) 348-3304 reaches a nearby TPO roofer.
On flat and low-slope roofs, TPO has become one of the most common membranes, a single layer of thermoplastic sheet rather than layers of asphalt. The sheets come in rolls several feet wide and in common thicknesses of 45, 60 or 80 mil, with thicker membrane lasting longer under sun and traffic. Its seams are welded with hot air, so the overlap becomes part of the sheet rather than a glued joint that can let go.
Most TPO problems trace back to how the roof was put down rather than the membrane itself. A seam welded too cold, a corner patch skipped at a curb or edge metal that was never sealed will leak long before the sheet wears out. Tapered insulation and crickets that move water to the drains or scuppers keep the membrane from sitting under standing water.
TPO Roofing is often paired with tpo roof repair and flat roof installation, depending on the cause.
Dealing with this in Harrison, NJ right now? Call (551) 348-3304 and describe the problem to a roofer who works in Harrison.
Call nowThe process
How a TPO roof is installed
Here is how a typical TPO roof goes on, from deck to seams.
Start with the deck
Before anything is ordered, the roofer cuts a small sample through the roof to see what is underneath and probes for wet insulation. Codes generally allow no more than two roof systems, so a roof that already has two must be torn off.
Tear off or recover
If the old roof is coming off, it is stripped to the deck, and rotted plywood or rusted steel deck is replaced. For a recover over one sound layer, a cover board separates the new membrane from the old surface.
Install insulation boards
Rigid insulation, usually polyiso, is fastened or adhered over the deck, often in tapered boards that pitch water toward the drains. Many energy codes require a minimum insulation value when a roof is replaced, so this layer is planned to meet it.
Roll out the TPO
The TPO sheets are rolled out and either mechanically fastened with plates and screws hidden in the seam laps or fully adhered with membrane adhesive. Fully adhered roofs tend to be quieter in wind and look smoother, while fastened roofs go down faster.
Weld the seams
Seams are welded with hot air, using a walking welder on long runs and a hand gun with a roller at corners. After welding, the roofer drags a probe along the seams to catch cold or skipped spots.
Flash every detail
Pipes get pre-molded TPO boots, curbs under rooftop units are wrapped with membrane, and walls get flashing run up and held with a termination bar. TPO-coated edge metal at the perimeter lets the membrane weld right to the edge.
What is included
Parts of a TPO roof
Tapered insulation
New insulation boards sized for the energy code so water moves off instead of ponding.
Curb flashing
TPO flashing welded around every opening so leaks do not start at the details.
TPO sheets
Single-ply TPO rolled out across the roof so the roof acts as one continuous sheet.
Moisture check
A check of the old roof for trapped water so wet insulation does not get buried.
Related service
TPO Roof Installation Harrison, NJ
A TPO roof installation on new construction or an addition starts with the deck and the slope, not the membrane. The deck, the drain locations and the insulation thickness are set first, then the attachment method is chosen to suit the wind exposure.
Residential TPO installation in Harrison tends to mean smaller roofs: additions, carports, dormers with little pitch and flat sections behind a parapet. Below the minimum pitch for shingles, a welded membrane is far more reliable. The tie-in where the shingles end and the membrane begins deserves extra attention, since that joint is where many small flat roofs leak.
Related service
TPO Roof Replacement Harrison, NJ
A TPO roof replacement comes into play when repairs stop holding because the sheet or the insulation under it has worn out. An infrared or capacitance scan helps map wet areas so only the damaged insulation is replaced. Wet insulation left in place loses its value and can rust fasteners and steel decking from below.
If the existing roof is one layer and mostly dry, a recover with a new cover board and TPO can be an option. With two existing layers, a full tear-off is required in most places.
Related service
PVC Roofing Harrison, NJ
PVC membrane looks and installs much like TPO, with the same hot-air welded seams and many of the same flashing details. PVC handles fats, oils and some chemicals that can soften other membranes, so it often goes on restaurants and food plants.
A roofer needs to know whether a white roof is PVC or TPO before patching it, since the two do not weld to each other. In Harrison, the choice usually comes down to what the roof is exposed to, with PVC for grease and chemicals and TPO for most other low-slope roofs.
Local help
TPO Roofing Near Me
In Harrison, a lot of TPO work replaces old tar and gravel or rolled roofing: older homes with flat sections and newer buildings with long, low roofs both end up with it. Across Harrison and nearby towns like Newark, Kearny, North Arlington and East Orange, older roofs often have one or two layers already in place, which is why the core cut and tear-off decision matter so much, so the best time to plan a TPO roof is before the old one starts leaking into the ceiling.
Searching for tpo roofing near me from Harrison or Newark, Kearny, North Arlington and East Orange? Call (551) 348-3304 to talk to a roofer who works in your part of town.
What the local climate does to a roof
Cold winters bring snow, ice and a long stretch of freezing nights. Heat escaping from the attic melts snow on the upper roof, and the water refreezes at the colder eaves, which is how ice dams form and back water up under the shingles. Coastal storms and heavy spring rain drive water sideways into flashing, valleys and old chimneys. That is why roof repair in Harrison is busiest after a hard winter and before the next one.
Why call
Why act early
Smaller repairs
A roof problem fixed early rarely spreads to the decking, the insulation or the ceilings.
Familiar with local homes
Local roofers see the same roofs and storm damage across Harrison and nearby towns.
Clear next steps
Ask the roofer about the cause, the options and the estimate before work starts.
Common questions about tpo roofing
Is a TPO roof good for a house?
Many homes use TPO on flat or nearly flat sections where shingles would leak. For the steep parts of the roof, shingles or metal remain the norm. Careful flashing at walls and shingle transitions is what makes it last on a home.
Why are TPO roofs white?
White TPO bounces much of the summer sun back off the roof. Less heat soaks through to the building, so the space under it can stay cooler in summer. A clean surface reflects best.
Can TPO go over my existing roof?
The existing layers and their condition decide. A recover over a single, dry roof is usually possible. With two layers already in place or trapped moisture, a tear-off is the right call.
Is TPO better than EPDM?
Both are proven flat roof membranes with different trade-offs. TPO is white and reflective with heat-welded seams, while EPDM is a black rubber sheet whose seams are joined with tape or adhesive. Welded seams give TPO an edge at the laps, and EPDM is valued for its flexibility and simple repairs.
What is the lifespan of a TPO roof?
A well-installed TPO roof commonly lasts somewhere around 15 to 30 years. Membrane thickness, how well the roof drains and how often people walk on it make the biggest difference.
More questions? Call (551) 348-3304
Often needed together
TPO Roof Repair
TPO roof repairs welded with matching membrane, done after the leak source is traced.
Learn moreFlat Roof Installation
Flat roof installation from the deck and tapered insulation up to the seams, flashing and edge metal, with every wall, curb and penetration flashed properly.
Learn moreCommercial Roofing
Commercial roof repair, replacement and maintenance for low-slope and metal roofs, with drains, rooftop units and access handled.
Learn moreRubber Roof Installation
New EPDM rubber roofs laid in wide sheets over insulation and a cover board, with primed and taped seams, so the roof stays flexible and watertight for decades.
Learn more
Looking for something else?
See all roofing servicesTalk to a Harrison roofer about tpo roofing
Call (551) 348-3304 for a local roofer in Harrison and nearby towns.