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  2. EPDM rubber - Wikipedia

    en.wikipedia.org/wiki/EPDM_rubber

    Solid EPDM and expanded EPDM foam are often used for sealing and gasketing, as well as membranes and diaphragms. EPDM is often used when a component must prevent fluid flow while remaining flexible. It can also be used to provide cushioning or elasticity. While EPDM has decent tensile strength, its flexibility makes it inappropriate for rigid ...

  3. 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 ...

  4. List of commercially available roofing materials - Wikipedia

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

    Membrane roofing consists of large sheets, generally fused in some way at the joints to form a continuous surface. Cured Thermoset membrane (e.g. EPDM rubber, Neoprene). Synthetic rubber Cured Thermosets are synthetic rubbers that have undergone the vulcanization or "Curing" process. Seams of materials are bonded by adhesives or chemicals ...

  5. Flat roof - Wikipedia

    en.wikipedia.org/wiki/Flat_roof

    The fleece improves puncture and tear resistance considerably; 1.1-millimetre (45-mil) EPDM with a fleece backing is 180% stronger than 1.5-millimetre (60-mil) bare EPDM. Fleece-backed EPDM has a tear strength of 39.9 kN/m (228 lbf/in) compared to 13.1 kN/m (75 lbf/in) of that without the fleece reinforcement, more than 3 times the strength of ...

  6. Bituminous waterproofing - Wikipedia

    en.wikipedia.org/wiki/Bituminous_waterproofing

    Thin, removable transparent film is added to the base of rolled roofing during manufacturing on all torch-on products. This stops the felt from sticking to the mineral layer when rolled up during the packaging process. A similar removable membrane on self-adhesive rolled roofing separates the adhesive from the mineral layer.

  7. Vapor barrier - Wikipedia

    en.wikipedia.org/wiki/Vapor_barrier

    Asphalt or coal tar pitch, typically hot-applied to concrete roof decks along with reinforcement felts. Polyethylene plastic sheet, 4 or 6 thou (0.10 or 0.15 mm), 0.03 US perm (1.7 SI perm). Advanced Polyethylene vapor retarders that pass the ASTM E 1745 standard tests ≤0.3 US perm (17 SI perm).