Protected Membrane Roof System

Protected roof membrane assembly prma popular in green roofing systems the protected roof membrane assembly prma places the insulation layer above the waterproofing membrane an inversion of traditional roofing systems.

Protected membrane roof system.

The insulation may be exposed to water so it should have minimal water absorption characteristics. 06 13 2007 by richard l. The longer lasting roofing solution an inverted roof also known sometimes as a protected membrane or pmr roof uses the same materials as a conventional roof but places insulation on the top of the membrane. Short for thermoplastic polyolefin tpo is a single ply roofing membrane that offers excellent performance at a cost effective price.

Sika worldwide what is your region and language. This approach is commonly referred to as a insulated roof membrane assembly irma or protected membrane roof pmr. Epdm roofs are easy to repair and restore one of the most common roof types on the market epdm roofs are a natural fit for our highly effective conklin roof replacement systems. Tpo s long term heat uv and natural fungal resistance plus flexibility without need for plasticizers also make tpo a reliable low slope roofing system.

Extruded polystyrene xps is the most suitable type. By overlaying the membrane with opaque ballast and thermal insulation the membrane is protected against accelerated oxidation evaporation of volatile oils ultraviolet degradation of organic materials such as bitumen thermal movement expansion and contraction blistering ridging and stress concentration over insulation joints. By simply reversing the insulation and the waterproofing membrane insulation on top of the membrane rather than beneath the cause of many roofing problems can be eliminated. Protected membrane roof pmr in a protected membrane roof also known as an inverted roof membrane assembly irma the insulation is installed on top of the membrane.

The natural water resistance of. To complete the installation of the waterproofing roofing assembly the separation protection course is installed such as hydrotech s hydroflex 10 for roofing applications or hydroflex 30 for waterproofing applications. The insulation is protected from environmental extremes but is exposed to moisture. Protected membrane roof systems.

Heat welded seams provide superior strength.