Can you install TPO over plywood?

TPO is a single-ply membrane that can be installed over the top of the plywood. Although there are different types of roofing material, like metal or wood shingle roofs, this type provides an alternative because it's much cheaper.

What do you put under TPO roofing?

Can you put TPO over existing roof?

If the existing roof is in good enough condition, a TPO membrane can beapplied over an existing roof system after an insulation board has been applied over anexisting built-up roof system or other single ply membrane.

Is TPO roof glued down?

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.

How many years does a 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.

NOVICE PERSPECTIVE - TPO Roof Install

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.

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.

Is TPO more expensive than EPDM?

TPO roofing membranes are more expensive than EPDM. Regardless of which membrane you choose, it is better to spend more money and invest in a thicker membrane. Both EPDM and TPO roofs perform better and last longer if they are thicker.

How is TPO attached?

The TPO membrane can be attached to the cover board with a bonding adhesive or mechanically fastened. When the membrane is rolled out, the contractor then returns and uses a hot-air gun to hot air weld the seams together.

Can you install TPO over tar and gravel?

The types of membrane roofing systems we install include PVC and TPO. Either of these are great replacements for tar and gravel and will ultimately benefit your commercial building in no time.

Can you put TPO over EPDM roof?

Yes. Recovering with TPO is a great option for a building with an aging EPDM roofing system. It's easy. It's far less costly and disruptive than a full tear-off.

How can you tell the difference between EPDM and TPO?

The main difference between TPO and EPDM roofing is that the durability of EPDM is higher, while TPO has a better reflection of sunlight. In EPDM vs TPO comparison, the latter also has a wider variety of color options available.

How thick is a TPO roof?

TPO is a type of roofing membrane that can come in a variety of thicknesses. The most common thickness is probably 60 mils. (A mil is a unit of measure where 1-mil is equal to 0.001 inches. So, a 45-mil roofing membrane is actually 0.045 inches thick; whereas a 60-mil membrane is 0.06 inches thick, and so on.)

What is TPO cover board?

Our TPO gives you the option of a reliable, cost-effective roofing solution. We reinforce our membranes with a polyester fabric and manufacture them using an ultraviolet-resistant thermoplastic polyolefin formulation.

Is TPO a membrane?

TPO (thermoplastic polyolefin) is a single-ply white membrane used in both commercial and residential roofing. Due to TPO being a white membrane, it reflects heat instead of absorbing it. If you have a flat roof or a low-slope dormer over a bedroom, TPO is a great option because it'll keep the room below cooler.

What roofing material is best for a flat roof?

PVC roofing

Polyvinyl chloride (PVC) roofing membranes have been heralded as one of the best flat roofing materials in the single-ply roofing industry. The material is made from processed petroleum or a natural gas and salt mixture.

What color is TPO roofing?

TPO roofs usually come in white, grey, and tan. They do have other colors. However, white, grey, and tan are the most used colors.

Is TPO better than modified bitumen?

Unless you are on an extremely restricted budget and need the cheaper roofing material right now, TPO is a superior choice. When it comes to which is the better material, TPO wins on most points. Despite that, modified bitumen is still around, and there are still roofers who are happy to work with it.

Can TPO be used on sloped roof?

In over 90% of residential applications, TPO membrane is applied to flat or very shallow-sloped roofs, but not always. Any sloped roof can handle the material. Costs are likely to increase though if TPO membrane is applied to a sloped roof.

How do you tell the difference between TPO and PVC?

Off the rack, no you cannot tell the difference visually. You can 'feel' a difference- PVC feeling more waxy, and feeling more pliable then TPO (unaged anyway…) PVC also has a distinct 'PVC Smell' to it.

Is TPO roofing flammable?

Single-ply roofing materials such as TPO are a sub-specialty category of roofing. This means that single-ply roofing is made using highly flammable and toxic materials. Solvents and adhesives are used to compose and install TPO roofing, which does make it flammable.

What is the lowest pitch a roof can have?

The smallest pitch of a roof is 1/4:12, which translates to 1/4 inch rise to 12 inches of run. Such a small pitch can only work with built-up roofing or specialized synthetic roofing. Covered porches that are near trees or in areas with heavy rains should not be covered with a low-slope roof.

What can I put on a 1/12 pitch roof?

This pitch might be as low as 1/12. The flat roofing materials most appropriate to these shallow-sloped roofs include: Built-Up Roofing: Sometimes called tar-and-gravel, or BUR, the modern form of this kind of roof consists of alternating layers of bitumen and reinforcing fabrics.

Which is better felt or synthetic underlayment?

With that in mind, synthetic underlayment is more durable than felt underlayment. Felt underlayment is much more prone to rip from high winds and during the installation process. Synthetic underlayment also holds nails better and repels water instead of absorbing it.