Also known as a “rubber roof,” EPDM is an acronym for Ethylene propylene diene monomer.
This synthetic rubber roofing membrane is primarily used for commercial applications, such as low-slope or “flat” roofs.
EPDM is traditionally black, but an additional white layer can be added to reflect sunlight. Rolls of EPDM can be anchored to the roof deck with adhesive or mechanical fasteners such as screws. Rolls are then glued together with an adhesive.
Metal roofing is a popular option due to the many options available. Protective layers are added to control rusting and corrosion from prolonged exposure to sunlight and other natural hazards. Metal roofing is used for commercial or residential applications. Metal “sheets” are mechanically attached to the roof deck with screws or a clip system.
Metal roofing comes in a variety of materials, such as:
- Corrugated Galvanized steel
- Stone-Coated steel
- Stainless steel
- Metal Tile Sheets
TPO or Thermoplastic Polyolefin is a single-ply roofing membrane made of a layer of synthetics and reinforcing scrim. Primarily used in flat roofing situations, TPO is a popular option for its reflective abilities for energy conservation and utility bill savings. Rolls of TPO can be anchored to the roof deck with adhesive or mechanical fasteners such as screws. Rolls are then heat welded or glued together with an adhesive.
Polyvinyl Chloride or PVC is a single-ply roofing membrane made with a lower percentage of oil and petroleum than TPO or EPDM roofing. PVC is a cool roof membrane and carries an Energy Star and Cool Roof rating. PVC roofing’s breaking strength is more than 350+ pounds per square inch, making PVC a reliable and durable material for roofing. PVC also supplies the benefits of being resistant to UV rays, various chemicals, water leaks, and damage from prolonged exposure to sunlight and discoloration. Rolls of PVC can be anchored to the roof deck with adhesive or mechanical fasteners such as screws. Rolls are then heat welded together. PVC remains weldable throughout it’s life-expectancy so there is no need for adhesives to bind the material together.
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