What temp does TPO melt?

Please utilize our Technical Service Department for more detailed information. High Temperature Resistance Polypropylenes relatively high melting point of 335°F allows continued use at temperatures up to 220°F with the material softening at 235°F.

Is TPO heat welded?

Single ply roof membranes are typically categorized as thermoplastic membranes. One of the key benefits of thermoplastic membranes is the ability to heat weld their seams and create a permanent seal. The two most common thermoplastic single ply roof membranes are Polyvinyl Chloride (PVC) and Thermoplastic Olefin (TPO).

Can you heat weld TPO to PVC?

Heat welding of PVC and TPO works perfectly around these roof units. The technicians will seal the membrane seams, stopping moisture from dripping through around the base.

Can you weld TPO to metal?

TPO membrane may be welded directly to the coated metal edging, eliminating the need to strip in the metal with a separate piece of membrane.

How do you heat weld a TPO?

As you begin to weld by heating the membrane, always use the seam roller at a 90 degree angle to the heat gun. Slowly but consistently work your way down the seam rolling over both layers with steady pressure on the seam roller with long steady strokes till you reach the end of the seam or area you are welding.

Periodic Table: Melting Points | A-level Chemistry | OCR, AQA, Edexcel

Are PVC and TPO compatible?

Also, unlike TPO and EPDM, PVC is not compatible with a lot of peel and stick or self adhered patching products. As a result, a white EPDM or TPO self adhered patch will typically not adhere properly to a PVC membrane. As a rule of thumb, the only way to patch or flash to a PVC roof is to weld it with compatible PVC.

How do you weld a PVC membrane?

Hot air welding is a technique used to create seams and fuse sheets of PVC roofing membrane together. Heated air is blown between two pieces of membrane and the heat changes the membrane into a softened, semi-solid state. A roller is then used to apply pressure and the two sheets blend together.

What is better TPO or PVC?

While PVC offers better resistance to puncture and weathering, TPO (like PVC) is recyclable and environmentally friendly. Its reflective surface reduces UV radiation and helps with energy efficiency.

What is TPO membrane?

Thermoplastic Polyolefin is a single-ply roofing membrane that is one of the fastest-growing commercial roofing systems on the market. TPO roofing systems are made up of a single layer of synthetics and reinforcing scrim that can be used to cover flat roofs.

Can you Weld TPO?

While TPO is easy to weld, let's take a look at some best welding practices. Strong welds are a key to making sure the final installation functions as a single sheet of membrane covering the entire roof. Make sure equipment is properly set up and in working order.

How long does TPO roof last?

It comes in a variety of thickness ranging from 45 mil to 80+ mil which can fit within a wide variety of budgets. 80-mil TPO roofs come with up to a 25-year warranty and with the appropriate maintenance, it is not uncommon for a TPO roofing system to last as long as 30 years.

Is TPO fire rated?

TPO is ENERGY STAR rated and meets the higher standard for California's Title 24. TPO membranes are mold resistant, impact resistant, wind resistant, fire and traffic resistant.

Which is better EPDM or TPO?

TPO has better dimensional stability than EPDM. EPDM is more likely to shrink which can cause a variety of problems on your roof.

What is the minimum slope for a TPO roof?

Thermoplastic single-ply roofing systems are plastic sheets (PVC, TPO, CSPE) that are welded together with hot air. This creates a shingle sheet that provides the weather protection for the building. Both the Thermoset and the Thermoplastic must be installed at a minimum one- fourth-inch-per-twelve-inch slope.

Can you glue TPO on top of TPO?

A TPO roof can be installed fully-adhered, mechanically-attached or ballasted. When the TPO roof is fully adhered it means that the membrane was glued to the substrate using a special strong adhesive that creates a chemical bond with the TPO.

Can you seal a TPO roof?

Silicone and acrylic coating systems are both great choices for restoring and extending the life of a TPO roofing system.

Can you adhere TPO to plywood?

Glue directly to that, Make sure to caulk all joints and screw heads, Yes screw the OSB/plywood down.

What is a hot air welder?

Hot air welding is a heat sealing process that applies heat and pressure to multiple material pieces, either through a rotary press or manually, in order to form a permanent seam between them. The seal is permanent and resistant to air and water pressure.