203 858 0080 naas@mac.com

There are mainly three types of Roofing Materials commonly used for flat roofs.

The three types of roofing materials are EPDM Rubber, TPO Vinyl, and Modified Bitumen Torch Down. These materials classified as “single ply” roofing membranes. Every roofing system has its pro’s and cons and techniques of installation.

Modified BitumenTorch Down is by far the most durable roofing material. Once a single ply torch down is coupled with a second layer Modified Bitumen Membrane, it becomes a Two Ply System that surpasses the quality and standards of all other roofing systems.

EPDM Rubber Roofing materials are popular

The biggest problem with EPDM Rubber Roofing Material is that the adhesives that are used to glue the seams together. The adhesive used is a contact cement and over the last 40 years have been recalled over five times.

The extreme heat on a flat roof, over 160 degrees F, breaks down the bonding properties and compromises the roof.

EPDM is also a thin material that can easily damage by workers around air conditioners and other objects on the roof. The maximum life expectancy for an EPDM roof without maintenance problems is between 10 – 15 years.

EPDM Rubber Roofing Materials are damaged by Ultraviolets creating patches all over the roof

Why is Modified Bitumen Rubber Materials better than EPDM rubber?

  1. Heat welding versus glue – The glue that bonds the EPDM rubber at the seams is affected by heat and the sun and deteriorates over time.
  2. When it comes to maintenance – It’s far easier and fewer skills needed to repair an MB rubber roof than EPDM or TPO roof
  3. Modified Bitumen will last longer without maintenance than all the other roofing systems.
  4. EPDM and TPO has a big shrinkage problem over time. That is what will pull away from the wall and flashing. Not so much with MB.
  5. A roof gets abused by Maintenance people – air conditioning, cleaners and snow removal people. Modified Bitumen Rubber can withstand most of these abuses.
  6. The MB rubber is tougher and can withstand snow shovels better than the EPDM or TPO membranes.
  7. Modified Bitumen rubber life expectancy is far greater than EPDM or TPO membranes without trouble.
Modified Bitumen Torch Down Roofing Materials installed on a Commercial Roof

The Pros of Modified Bitumen Roofing Materials

This type of rubber roof is very sturdy and durable. When it comes to commercial roofs, then this is the choice material because it is expected to have service and maintenance people on it regularly.

If they happen to drop nails and screws, it will not be a problem if someone would step on it unlike on an EPDM rubber roof.Installing Modified Bitumen rubber roofs is pretty straightforward.

There are techniques as in any roofing material that should be followed to ensure a stable roof over many years. The problem is that many roofing companies have stuck to EPDM rubber and never got familiar with Modified Bitumen rubber roofs.

Installing a Modified Bitumen rubber roof is also less costly than EPDM. It is more robust and thicker than EPDM and installs over almost any surface, unlike EPDM rubber roofs.

As long as the flashing is exposed and free from debris, you can install the modified bitumen membrane straight onto an existing roofing material.

Modified Bitumen Roofing materials - Ceramic granules embedded on this roof surface

Video – Repairing Torch Down Rubber Membrane Roof

Video - Repairing Torch Down Rubber Membrane Roof
Video - Repairing Torch Down Rubber Membrane Roof ...
Read More

Video-How to Repair Torch Down Rubber Membrane Roof

Video-How to Repair Torch Down Rubber Membrane Roof
Video-How to Repair Torch Down Rubber Membrane Roof ...
Read More

Video Torch Down Rubber Roof Membrane – Flat Roof Repair – PA

Video Torch Down Rubber Roof Membrane - Flat Roof Repair - PA
Video Torch Down Rubber Roof Membrane - Flat Roof Repair - PA ...
Read More

Commercial Rubber Roof Flat – Watch Video

Rubber Roof Repair - fix a roof New Canaan , CT
Commercial Rubber Roof Commercial Rubber Roof - The same roofing materials apply to a Commercial roof as on a Residential roof. It is a myth that there is a higher standard ...
Read More

Flat Roof Rubber Membrane

Three Types of Rubber Membranes - Connecticut - Darien, Stamford
Three types of Flat Roof Rubber Membranes Flat Roof Rubber Membranes are divided into three types - EPDM, TPO, and Modified Bitumen Torch Down Although there are many types of roofing ...
Read More

Rubber Roofs – Comparing EPDM with Torch Down -Video

Rubber Roofs -Comparing EPDM and Torch Down Rubber Membranes Video
Rubber Roofs - Modified Bitumen vs EPDM Rubber This Article: Comparing Rubber Roofs "Modified Bitumen Torch Down" vs "EPDM Rubber Membrane" Rubber roofs were introduced in the late 60's in the ...
Read More

Con Artist Roofing Contractor

Con Artist Roofing Contractor
Dear Mr. Williams After investigating the roof we found the following:
  1. A Modified Bitumen Torch Down Rubber membrane was used with no ultra violet protection
  2. No coating was applied for ...
    Read More

Flat Roof Repairs and Flashing Greenwich

EPDM Roof and Flashing - Greenwich CT - Flat Roof Repair - Fix a leak
Flat Roof Repairs and Flashing in Greenwich Flat Roof Repairs and flashing is the most important part of a flat roof.  Most leaks stem from roofing materials loosening from flashing. Skylights, ...
Read More

Which is the Best Roofing Material for a Flat Roof?

Which roofing system offers the Best Roofing Materials for a Flat Roof?
There are mainly three types of Roofing Materials commonly used for flat roofs. The three types of roofing materials are EPDM Rubber, TPO Vinyl, and Modified Bitumen Torch Down. These materials classified as "single ...
Read More

Rubber Roof Systems – Watch Video

Rubber Roof Membrane System - Video - Flat Roof Repair - New Rochelle, NY
Rubber Roofs on flat roofs There are many types of roofing systems available. The most common rubber roof across the US today is EPDM. When EPDM came on the market in the ...
Read More

5 Comments

  1. The extreme heat on a flat roof, over 160 degrees F, breaks down the bondingproperties and compromises the roof. Liquid EPDM rubberis not damaged by Ultraviolets, water heat or other problems over time.

    Reply
    • Hi Nicole – Thanks for the correction

      You are correct, that the “extreme heat” is what breaks down the bonding properties. But, the ultraviolets also cause the EPDM Rubber to lose its elasticity. I have videos on my site where you will notice how the material shrunk and was putting stress on the seams and the wall transition.

      Thank you for correcting me. The Ultraviolet was not the cause of the Adhesive failure but rather the heat. Good catch.

      Reply
  2. Why do most roofing contractors choose to install EPDM Rubber than the TPO or Torch Down?

    Reply
    • Hi Johny
      EPDM Rubber Roofs have become the norm for most roofing contractors. There are several reasons that this can be attributed too:
      1. It is a very thin material and therefore the rolls can be as wide as twenty feet. Installing materials from eight feet to 20 feet wide makes for fewer seams.
      2. EPDM requires minimum tools. Because of a glue down process, all you need is a utility knife, paint brush, rollers, and scissors to be able to install EPDM Rubber on a prepared surface.
      3. Requires little skill – you can train someone in a few hours to be able to install this type of rubber membrane.
      4. EPDM Rubber is quicker to install and is less labor intensive, that alone is a huge saving to the roofing contractor.
      5. A crew of two people can do an entire roof.

      There are several reasons why roofing contractors don’t install TPO or Torch Down Rubber membranes.

      1. It takes an experienced person to be able to handle a torch or heat welder for TPO. There are not many around.
      2. It takes longer to install these membranes.
      3. The equipment is more expensive. In the case of a TPO Membrane, the equipment and tools will run over $12,000 before you can start installing it.
      4. Torch Down comes in three foot wide rolls, and therefore there are more seams on the roof. The reason why it is only three foot wide is that the membrane is four times thicker than that of TPO or EPDM.
      5. To keep an experienced crew around that installs TPO or Torch Down, becomes expensive.

      I hope these points cleared up the questions you had.

      Reply
  3. If some one needs to be updated with latest technologies afterward he must be
    pay a quick visit this site and be up to date every day.

    Reply

Submit a Comment

Your email address will not be published.

5 Comments

  1. The extreme heat on a flat roof, over 160 degrees F, breaks down the bondingproperties and compromises the roof. Liquid EPDM rubberis not damaged by Ultraviolets, water heat or other problems over time.

    Reply
    • Hi Nicole – Thanks for the correction

      You are correct, that the “extreme heat” is what breaks down the bonding properties. But, the ultraviolets also cause the EPDM Rubber to lose its elasticity. I have videos on my site where you will notice how the material shrunk and was putting stress on the seams and the wall transition.

      Thank you for correcting me. The Ultraviolet was not the cause of the Adhesive failure but rather the heat. Good catch.

      Reply
  2. Why do most roofing contractors choose to install EPDM Rubber than the TPO or Torch Down?

    Reply
    • Hi Johny
      EPDM Rubber Roofs have become the norm for most roofing contractors. There are several reasons that this can be attributed too:
      1. It is a very thin material and therefore the rolls can be as wide as twenty feet. Installing materials from eight feet to 20 feet wide makes for fewer seams.
      2. EPDM requires minimum tools. Because of a glue down process, all you need is a utility knife, paint brush, rollers, and scissors to be able to install EPDM Rubber on a prepared surface.
      3. Requires little skill – you can train someone in a few hours to be able to install this type of rubber membrane.
      4. EPDM Rubber is quicker to install and is less labor intensive, that alone is a huge saving to the roofing contractor.
      5. A crew of two people can do an entire roof.

      There are several reasons why roofing contractors don’t install TPO or Torch Down Rubber membranes.

      1. It takes an experienced person to be able to handle a torch or heat welder for TPO. There are not many around.
      2. It takes longer to install these membranes.
      3. The equipment is more expensive. In the case of a TPO Membrane, the equipment and tools will run over $12,000 before you can start installing it.
      4. Torch Down comes in three foot wide rolls, and therefore there are more seams on the roof. The reason why it is only three foot wide is that the membrane is four times thicker than that of TPO or EPDM.
      5. To keep an experienced crew around that installs TPO or Torch Down, becomes expensive.

      I hope these points cleared up the questions you had.

      Reply
  3. If some one needs to be updated with latest technologies afterward he must be
    pay a quick visit this site and be up to date every day.

    Reply

Submit a Comment

Your email address will not be published.