These systems are most commonly vinyl materials known as PVC (Polyvinyl Chloride) membranes or TPO (Thermoplastic Olefin) membranes. They are applied by the use of hot air heat welding and chemical bonding with use of solvent adhesives or any combination of the two. These are high value investment systems that are meant to last many years in most environments. They are easily repaired by cleaning the surface and heating or chemically bonding a patch in place.
Asphalt Gravel Roof
Gravel used to be the most common system, also known as asphalt and gravel roofs. Their use is not recommended in newer construction as newer systems tend to be more effective.
Asphalt Built Up Roof
This is the most common type of flat roof available now. It is made up of multiple layers of reinforcing plies and asphalt forming a redundancy of water proofing layers. You can use either rigid insulation board foam (base layer or base layer with tapered) or Perlite materials. Several plies of fiberglass felts are layered in hot melted asphalt and topped with an additional coat of hot asphalt with embedded gravels or a granulated cap sheet membrane.
Modified Membrane Roofing
These are the new-age materials of flat and ply roofing options. They are meant to replace the hot asphalt gravel embedded surface treatments of the flat roofs. These membranes weather well and resist the damaging effects of “ponding” water. Because of a multitude of use applications and many acceptable methods of installation, they make good components for most roofing needs.
Cold Applied Liquid Membranes
This is an increasingly popular choice for new roofs and roof refurbishment in the Fort Lauderdale area. No open flames or other heat sources are needed as the fiberglass reinforced systems provide seamless waterproofing around roof penetrations and details. These systems are based on flexible thermoset resin such as polyester and polyurethane. This is a more economic option (especially for residential), generally used for very small flat roof surfaces.