Protected Membrane Roofs

Protected membrane roof systems.

Protected membrane roofs.

With such roofs the membrane s temperature range and rate of temperature change are drastically reduced. This arrangement of roofing materials roof deck waterproofing membrane moisture resistant insulation is commonly referred to today as the protected membrane roof pmr or insulated roof membrane assembly irma. 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. 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.

This is done as the membrane is being installed so that a good bond is attained between them. Protected membrane roofing ballast options ballast options and flexibility one of the advantages of using mm6125 in a protected membrane roof assembly pmr is that once the membrane is installed owners and designers can take advantage of various ballast options gravel pavers and garden roof to suit a specific project s needs. Protected membrane roofing insulation technology has evolved over the decades and some types like rigid extruded polystyrene foam xps is highly water resistant. A protected membrane roof is a roof where thermal insulation or another material is located.

Flat roof developments protected membrane roof.