Ethylene Propylene Diene Monomer is a synthetic rubber material used in single-ply roofing. Rubber roof systems have greatly improved over the last several years due to advancements in materials and system installation practices. EPDM systems are currently the most commonly installed roof system because of it's great value. Rubber membrane is white or black in color, has thicknesses of .045 mil, .060 mil and .090 mil with optional re-enforcement within the membrane. This material can be secured in place using adhesive, ballast or mechanical attachment. Rubber roof systems have manufacturer warranties ranging from 10 years to 30 years depending on the material and system attachment.
APP (attactic polypropylene)
TPO (Thermoplastic Polyolefin) is a single ply roofing system. This roofing material can be fully adhered, mechanically fastened, or ballasted. TPO is re-inforced with scrim and comes in a variety of thicknesses usually white in color. Seams are heat welded together and can be very strong when done properly.
PVC (Polyvinyl Chloride) is a single ply membrane that is usually white in color. This membrane can be installed using adhesive, ballast or mechanically fastened. Scrim is used to reinforce the membrane from shrinking. The seams are heat welded.
Tar, Built Up
Tar comes from the coal mining industry referred to as Coal Tar Pitch. This material is rarely used today due to its expense and now known health hazards. This roof system consists of plies or layers of felt with tar inbetween. Over this system slag is commonly installed however pea stone and marble chips may also be used.
Asphalt, Built Up
Asphalt comes from oil and the petroleum industry. Asphalt usually consist of three to four layers of asphalt with felts used for re-enforcement and to separate the layers of asphalt. The finished product is a smooth surface or is embedded with slag or pea stone.
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