TPO Roofing Price Calculator

This roofing calculator will estimate the approximate cost to install a new TPO roof system (50, 60 or 80-mil). The tool also provides an option to estimate the cost of installing competing single-ply flat roofing materials (PVC and EPDM rubber roofing), as well as Tar & Gravel and Built-up Roofing (Rolled Asphalt / Modified Bitumen).

Roof Size
x ft.
Roof Drains
ln. ft.
Roof Slope
Low End
Mid Range
Estimated Roof Price: $0
High End

See costs in your area Start Here - Enter Your Zip Code

To estimate roofing cost, enter roof / building dimensions, choose tear-off options, new ISO insulation and the number of roof curbs or penetrations (chimneys, skylights, roof hatch, parapet walls, etc).

How to Estimate Your Roof Cost Accurately

  • This calculator is only as accurate as the numbers you plug into it. If your measurements are off, so will be the estimated roof size and price. It is important that you accurately measure your roof. Include any overhangs, bump-outs, and parapet walls.
  • Include all parts of the roof into the calculator. Things like curb flashings (HVAC units, Chimneys, Skylights, Roof Hatches) or drains may seem of little importance to you, but they take considerable amount of time to flash properly and slow down the process.
  • Don't forget tear-off. Most states require that your roof may not have more than TWO layers of materials (without special approval by building engineer or architect and permission from your City/Town building department). It is also recommended to remove all existing materials down to the roof deck, before installing a new roof. This allows you to remove all wet insulation and repair a rotted / rusted roof decking.
Commercial TPO Roof InstallationCalculator limitations: It is important to understand that these are only approximate figures. Your actual price will greatly depend on your geographic location, roof complexity, the contractor you choose, and ever fluctuating cost of materials.

We provide this calculator for reference ONLY propose, and it is not a solicitation or offer to install any roofing products.

We recommend that you get at least 3 quotes from reputable, local contractors who specialize in Flat Roofing, and have extensive experience with Thermoplastic Single Ply systems, such as TPO and PVC heat-welded membranes.

Always hire a contractor that has General Liability, Workers Comp and optionally Bond / Excess insurance. Also, ask for at least 3-5 references of jobs that are OVER 5 years old.

Read more about TPO Roofing Installation.

Related article: Which is better - TPO or EPDM Rubber roof?

13 thoughts on “TPO Roofing Price Calculator

  1. TPO Roofing

    Thanks for the TPO roofing calculator. Very helpful tool. Been looking for something like this for awhile!

    1. joseph pallivathucal

      I need 41000 sq ultraply tpo with 30 year warenty and like to know how much will cost for the product including the shiping to california

      1. Leo - Roofer Post author


        I don’t think you will get a 30 year warranty anywhere. The max in commercial roofing is 25 years, and only on thickest membrane (typically 80+ mil), which is the most expensive option.

  2. Windows on Washington

    As a means to give the customer some familiarity with ranges, it seems like an effective tool.

    Granted, every project is different and needs to be examined on a case by case basis, but I think this will help clients get a very good idea of what they need to be thinking in terms of.

    I think it is a very nice interface and is pretty slick set up. 

    Great job!!

    Windows on Washington

  3. Gemma Buttrum

    All licensed Roofers must carry insurance and be bonded for the safeguard of their clients. Be sure to authenticate this when using the Roofers you finally choose but don’t stop there. Get information about the limits of the protection and which company they are really insured with. Also get information about warranties.;

    1. TPO Roofer

      Brian, not to be rude or anything, but if you don’t know anything about TPO, maybe you should not be selling it. It is a fairly complex system and small mistakes can cost big bucks.

      I recommend you start by reading about particular products on manufacturers websites.

      Best of luck selling it, and don’t take personal offense please.

    1. TPO Roofer

      Yes it does – full installed cost. But obviously this is only an estimate, and actual prices will depend on the roof and location, and contractor, and materials used in the job, and many other factors.

      Still, these are pretty close estimates!


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