Protected Membrane Roof System

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.

Protected membrane roof system.

Extruded polystyrene xps is the most suitable type. The insulation may be exposed to water so it should have minimal water absorption characteristics. 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. Also known as a protected membrane or upside down roof inverted roofs employ insulation which can resist water absorption provide excellent thermal performance be unaffected by freeze and thaw cycles withstand surface traffic and be protected from uv and mechanical damage among others.

Short for thermoplastic polyolefin tpo is a single ply roofing membrane that offers excellent performance at a cost effective price. Heat welded seams provide superior strength. The insulation is protected from environmental extremes but is exposed to moisture. 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.

Sika worldwide what is your region and language. The natural water resistance of. This approach is commonly referred to as a insulated roof membrane assembly irma or protected membrane roof pmr. 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.

Protected membrane roof systems. 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. 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. 06 13 2007 by richard l.

This is done as the membrane is being installed so that a good bond is attained between them.