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  2. EPDM rubber - Wikipedia

    en.wikipedia.org/wiki/EPDM_rubber

    EPDM can be compounded to meet specific properties to a limit, depending first on the EPDM polymers available, then the processing and curing method(s) employed. EPDMs are available in various molecular weights (indicated in Mooney viscosity ML(1+4) at 125 °C), varying levels of ethylene, third monomer, and oil content.

  3. List of commercially available roofing materials - Wikipedia

    en.wikipedia.org/wiki/List_of_commercially...

    Roofing material is the outermost layer on the roof of a building, sometimes self-supporting, but generally supported by an underlying structure. A building's roofing material provides shelter from the natural elements. The outer layer of a roof shows great variation dependent upon availability of material, and the nature of the supporting ...

  4. Membrane roofing - Wikipedia

    en.wikipedia.org/wiki/Membrane_roofing

    The finished roof's thickness is usually between 30 and 120 mils (thousandths of an inch; 0.75 mm to 1.50 mm). The most commonly used cured elastomer membranes are ethylene propylene diene monomer (commonly EPDM) and neoprene, although all thermoset products combined fail to account for more than 10% of all commercial roofing. This is in part ...

  5. Florida Roof Choices: Comparing Durability, Cost, and Style - AOL

    www.aol.com/florida-roof-choices-comparing...

    Florida Roof Choices: Comparing Durability, Cost, and Style. Sara Kendall. May 14, 2024 at 1:00 PM. ... A basic 3-tab asphalt shingle is the least expensive roof material on this list, ranging ...

  6. Flat roof - Wikipedia

    en.wikipedia.org/wiki/Flat_roof

    Thermoset roofing is easily formed around shapes like corners and is extremely resistant to ozone, ultraviolet light, weathering, high heat, and abrasion damage, making it an excellent roofing material. EPDM membranes are seamed using pressure-sensitive tapes to join two sheets together, although other Thermoset systems can often be chemically ...

  7. Ethylene propylene rubber - Wikipedia

    en.wikipedia.org/wiki/Ethylene_propylene_rubber

    Ethylene propylene rubber (EPR, sometimes called EPM referring to an ASTM standard) is a type of synthetic elastomer that is closely related to EPDM rubber. Since introduction in the 1960s, annual production has increased to 870,000 metric tons. [1] [2] The skeletal formula of ethylene propylene rubber.

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