Tapered insulation
New insulation boards sized for the energy code with slope built toward drains and scuppers.
TPO roofing in Montvale is a white single-ply membrane rolled over insulation and heat-welded at every seam, which turns the whole roof into one continuous sheet with no glued laps. Call (551) 390-0362 to reach a local 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. The laps are fused with a hot-air welder, which is the main reason a well-installed TPO roof stays tight at the seams for years.
The membrane is only as good as the details around it. Leaks come from under-welded seams, flashing that pulls away at walls and curbs, and penetrations sealed with caulk instead of proper boots. Drainage matters just as much, since water that sits in low spots for days speeds up wear and finds any weak seam.
TPO Roofing is often paired with tpo roof repair and flat roof installation, depending on the cause.
Need tpo roofing in Montvale? Call (551) 390-0362 to talk to a local roofer.
Call nowHere is how a typical TPO roof goes on, from deck to seams.
A survey of the old roof usually includes a small core cut through the layers to check for trapped moisture and count existing roofs. Since most codes cap a building at two roof layers, the core cut often settles the tear-off question.
Old roofing is removed where needed, damaged decking is replaced and the surface is cleaned and made smooth. On a recover, a cover board goes over the old roof so the new membrane has a flat, solid base.
Polyiso boards go down next, and tapered panels and crickets are added where water needs help getting to drains or scuppers. The insulation thickness is set partly by the local energy code, which often calls for more than the old roof had.
Each sheet is either screwed down along its edge, with the next sheet lapping over the fasteners, or glued to the insulation across its whole back. Adhered sheets resist flutter in high winds, and fastened systems suit large open roofs.
Seams are welded with hot air, using a walking welder on long runs and a hand gun with a roller at corners. The finished seams are probed by hand so any gap is rewelded before the job is done.
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.
New insulation boards sized for the energy code with slope built toward drains and scuppers.
A sample cut through the old layers before the new roof is planned.
TPO sheets fastened or adhered to the insulation with every seam hot-air welded and probed.
Perimeter metal the membrane can weld to so the edge stays sealed and tight.
TPO flashing welded around every opening built from the same membrane as the field.
New TPO roof installation is the cleanest version of the job, since there is no old roof to deal with. The deck, the drain locations and the insulation thickness are set first, then the attachment method is chosen to suit the wind exposure.
On homes in Montvale, TPO installation often covers a flat roof over a porch, a garage, a sunroom or the low section of a split-level roof. Shingles need a minimum pitch to shed water, so these low sections need a membrane. Where the TPO meets a shingled slope, the transition is flashed so water from above runs over the membrane, not under it.
Replacing a TPO roof is usually done when seams have opened in many places, the membrane is cracking or the insulation below is wet. Moisture surveys and core cuts show whether the roof can be recovered or needs a full tear-off. Leaving wet boards under a new roof traps the water and causes blisters and rot later.
If the existing roof is one layer and mostly dry, a recover with a new cover board and TPO can be an option. A second recover is off the table on a roof that already carries two systems.
Like TPO, a PVC roof is a white or light-colored single-ply sheet whose seams are welded with hot air. Where it stands apart is resistance to grease and chemicals, making it a frequent choice under restaurant exhaust fans and on some industrial roofs.
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. For a Montvale roof with no grease or chemical exposure, TPO is often the simpler choice, while PVC earns its place where those exposures exist.
In Montvale, a lot of TPO work replaces old tar and gravel or rolled roofing: older flat roofs that have been patched for years are the most common candidates. Homes and buildings in Montvale and around Park Ridge, Woodcliff Lake, Saddle River and Hillsdale see summer heat, heavy rain and the occasional strong storm, all of which test a flat roof at its seams and drains, so the best time to plan a TPO roof is before the old one starts leaking into the ceiling.
For tpo roofing in Montvale, NJ or nearby towns like Park Ridge, Woodcliff Lake, Saddle River and Hillsdale, call (551) 390-0362 to reach a roofer who covers your street.
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. Strong coastal storms push rain into every weak spot at the flashing and valleys. Most homeowners in Montvale, NJ have the roof checked in the fall and again after the snow melts.
Small roof problems caught early usually stay small repairs.
Roofers in Montvale know the roof types and weather wear common in local homes.
Ask the roofer about the cause, the options and the estimate before work starts.
More questions? Call (551) 390-0362
Repairs for open seams, punctures, failed flashings and wet spots on TPO roofs, so the roof stays one continuous sheet.
Learn moreFlat roof installation from the deck and tapered insulation up to the seams, flashing and edge metal, so water drains instead of ponding.
Learn moreRoofing work for business, institutional and multi-family buildings, from single-ply membranes to metal and coatings.
Learn moreNew EPDM rubber roofs laid in wide sheets over insulation and a cover board, with primed and taped seams, with as few seams as the roof allows.
Learn moreLooking for something else?
See all roofing servicesCall (551) 390-0362 to talk to a roofer serving Montvale, NJ.