RCMP Heritage Centre – Regina, SKSingle-ply roofing systems are composed of insulation, a single-ply membrane, flashings, and adhesive. TPO, EPDM, and PVC are the three most common types of single-ply membrane systems. Since they consist only of a single layer of roofing over insulation, these popular systems are lightweight, making them an ideal choice for new or retro-roofs.

TPO (ThermoPlastic Olefin) roofing systems combine the long-term durability of rubber with the security of hot air welded seams. TPO’s advantages include:

  • The most environmentally friendly of the single-ply systems
  • Produce no dioxins or chlorine
  • Come in varying thicknesses and roll widths to meet your specific requirements.

EPDM (Ethylene Propylene Diene Monomer) is a stable roofing alternative that withstands extremes of temperature and expands and contracts with the building. Key advantages are:

  • Minimal maintenance
  • Resistant to UV radiation and ozone
  • Proven effective for more than 30 years.

PVC (Polyvinyl Chloride) Roofing Systems are among the easiest single-ply roofing membranes to install and heat-weld together. Among the advantages PVC systems provide:

  • Ability to resist various chemical effluents
  • Superior resistance to punctures and tears
  • Especially suited for roofs that are exposed to concentrations of grease, oils and many kinds of fuels
  • Ideal in areas where acid rain or other forms of acidic outflow is a problem.