Glossary


Alligatoring is the cracking of the surfacing bitumen on a bituminous roof or coating on a SPF roof, producing a pattern of cracks similar to an alligator’s hide; the cracks may not extend completely through the surfacing bitumen or coating.

Blistering of Roofing Membranes Blisters are raised areas of a roofing membrane where pockets of air and moisture are present. It usually occurs on hot and sunny days.

Roof Ponding is the retention of water on a low-slope or flat roof caused by a deflection of the roof’s underlying structural components. Ponding water on a roof causes leaks, algae and fungi growth. If left unattended, roof ponds can lead to the collapse of a roof.The size of roof ponds increases over time because the weight of the water causes additional deflection of the structural membranes underneath. Eventually, the structure will not be able to carry the increased load and the roof collapses.

Thermoplastic Polyolefin (TPO) roofs are thermoplastic membrane roofing assemblies formed with reinforced and unreinforced thermoplastic membranes. They include ballasted, fully adhered, and mechanically attached installations.

Thermoplastic Polyolefin (TPO) comes in large rolls and must be glued or mechanically fastened to a roof, and sealed at all seams. This is in contrast to other roofing, typically known as Built-Up Roofs, which utilize hot asphalt and other hazardous components as the roof is constructed in place. The three major categories of single-ply membranes are Thermosets, Thermoplastics and Modified Bitumens.

Crazing is the development of a multitude of very fine cracks on single ply membranes such as TPO’s and PVC’s. It is similar to alligatoring. Crazing on single ply membranes occur on the top layer above the reinforcing mesh. If deterioration continues, the craze can become a crack which results in roof failure. Widespread crazing allows water to penetrate the membrane causing roof leaks which can be difficult to isolate and repair.

Chlorinated Polyethylene (CPE) is a thermoplastic material, used for single-ply roof membranes, composed of high molecular weight polyethylene that has been chlorinated with a process that yields a flexible rubber-like material.

Ethylene Propylene Diene Monomer (EPDM) roofs are roofing materials formed with vulcanized and non-vulcanized elastomeric membranes. They include ballasted, fully-adhered, and mechanically attached installations.

Acrylic Elastomeric Coatings The most widely used roof coating. They can be used on all properly sloped roofing surfaces that do not pond water.

Butyl Elastomeric Coatings The preferred roof coating for flat roofs such as asphalt built up (BUR), modified bitumen (APP and SBS). Highly resistant to ponding water.

Silicone Elastomeric Coatings A popular protective coating for polyurethane foam. Use on new installations or to recoat an existing silicone coated roof.









  • Testimonials

    • Ronald S
      Virginia Beach VA

      I ordered a gallon of Liquid Rubber last summer, and inquired if it could be spread with an adhesive applicator trowel; the sales person was not aware of this having been tried. I tried using a commercially available trowel with 4 sawtooth teeth per inch, and 0.135 inch notch depths, holding the trowel at about a 45 degree tilt.
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    • G Sorrell
      Lufkin,TX
      Diboll Lumber Operations

      Everyone was SUPER helpful and knew the product, properties and application methods well. I applied to product on the trailer in about a 2-hour period one evening. It was tricky with the application, from a novice who had not done this before.
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    • H&W Property Management

      Donna,your staff and your customer service is the reason we buy from you. You had asked us several months ago if we would write up something for your Website. We wanted to get some additional orders first before coming to conclusions.
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    • T. Basset

      We have completed the resurfacing of our commercial roof back in April and ordered a few more pails for areas where we probably did not apply it thick enough. Just wanted to share these photos with you.
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    • B & T Contracting

      You have a great product here and we will be ordering for future jobs we have. We were a bit skeptical at first but when it was fully dry it looked as if we installed a new 15,000 sq piece of sheet EPDM.
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    • Jed L
      Biloxi MS

      This will be the third time our firm has ordered. We completed a project in 05 in the fall and waited for the winter. This was actually the first winter without any leaks. Great product overall.
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  • Contact

    home iconEPDM Coatings N.E Sales Office
    494 Bridgeport Ave Suite 101,
    PMB 342 Shelton CT 06484-4748
    Fax: 702-977-2936
    tell iconTel: 1-610-298-1989
    email iconEmail: [email protected]
    website iconWebsite: www.fixallroofs.com
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