Commercial Roofing Restoration, Commercial Repairs, and Re-Roof
Many existing commercial flat roofs within Palm Beach County and Broward County in South Florida utilize EPDM membranes. Although Hammerhead does not recommend EPDM for new installations in Palm Beach County, Broward County and South Florida, we are seasoned experts at commercial roof restoration and commerial roofing repairs of existing EPDM roofs on commercial buildings. Due to the advances in roofing technologies over recent years, the products we utilize and techniques we employ for commercial roofing restoration and roofing repairs in Palm Beach County will be far superior to those we replace.
EPDM Commercial Roofing in Palm Beach County and South Florida
Moderate durability, design versatility and installation ease are among the reasons EPDM has often been chosen for new or reroof low-slope commercial roofing in Palm Beach County and South Florida. EPDM roofing systems are based on a high-performance synthetic rubber compound that provides outstanding weathering characteristics in many climates worldwide. However, EPDM systems are not the best choice for Palm Beach County or Broward County due to its ability to absorb sun light and allow heat to increase to excessive levels. EPDM systems can be ballasted, mechanically attached, or fully adhered. An EPDM commercial roofing membrane is a vulcanized/thermo set membrane. It is fully cured during the manufacturing process prior to being shipped. As it ages, the EPDM membrane does not leech or emit hazardous chemicals. Unlike non-vulcanized elastomers, which may begin curing in the field once exposed to moisture and heat, an EPDM membrane has no known shelf life. Its physical properties remain stable, which makes commercial roofing repairs much easier in the unlikely event of a cut or tear.
EPDM Membrane Types
In addition to the polymers and oils used to make EPDM membranes, other ingredients are added to the mix to optimize UV resistance. Colder climates can utiize a black membrane, where carbon black is added to convert UV rays into heat. White membranes are better suited for South Florida, where titanium dioxide is typically used to reflect UV rays and prevent it from attacking the polymer. EPDM membrane is manufactured in various thicknesses (.045" to .090" thick) and is available as a non-reinforced or reinforced sheet (depending upon application). Other thicknesses are also available for use in non-roofing applications as a special order.
Reinforced membranes contain an internal fabric that is completely encapsulated within the EPDM membrane sheet and is available in various thicknesses (.045" to .075"). Occasionally, a fleece layer can be added to the underside of the sheet that serves as a built-in underlayment for direct re-roof applications over certain types of existing roofing material. EPDM is also manufactured as vulcanized (cured) or non-vulcanized (uncured) membrane. Vulcanized membranes have set physical properties due to the vulcanization process and exhibit consistent behavior throughout the sheet that allow the membrane to have memory - this means when the membrane is stretched, it will return to its original state. On the other hand, non-vulcanized EPDM does not have set physical properties because it is not cured when manufactured. This makes the uncured material ideal for use as flashing where the material can be stretched, formed, and shaped.