Even though EPDM roofing membranes are mainly used on flat or low slope roofs, these are not the only shapes they can cover. In fact, EPDM offers total design freedom, even when the roof is not flat at all. Roofs with irregular shapes, wavy roofs, roofs that extend almost to the point of becoming part of the façade…they can all be waterproofed using EPDM.
What gives the architect an enormous amount of design freedom when choosing EPDM is that these roofing membranes are single-ply. It means that one thin layer is enough to offer a durable and high-performance waterproofing solution, without adding significant weight to the building structure (unlike other traditional roofing membranes that need to be installed in several layers).
EPDM membranes are also extremely flexible, even at temperatures as low as -45 °C. They have excellent lay-flat characteristics and can adapt and conform to irregular shapes very easily, following the geometry of the support. This flexibility also enables EPDM membranes to cope with the building’s various expansions and retractions caused by temperature fluctuations, without ever saturating or breaking.
Both for new construction and renovation EPDM membranes can be installed directly on most substrates, with or without insulation. The installation method is chosen according to the requirements of each project: they can be fully adhered to the substrate using adhesives, fixed mechanically with plates and fasteners or simply ballasted in place using gravel or concrete pavers. All these methods have one thing in common: no flames are needed to install EPDM roofing membranes, which significantly adds to the safety of the jobsite. In addition, no large or heavy equipment or tools are required, which brings added flexibility during the installation process.
EPDM roofing membranes can be left exposed or can be covered with cladding panels. EPDM membranes allow the activation of the roof through a variety of environmentally friendly building practices such as green roofs, photovoltaic installations or blue roofs. In short, where the architect’s vision goes, EPDM can follow - provided the building structure can take it.