Protected Membrane Roofs

A protected membrane roof is a roof where thermal insulation or another material is located.

Protected membrane roofs.

Protected membrane roof systems. 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. This is done as the membrane is being installed so that a good bond is attained between them. This insulation can be placed above the roof membrane protecting the membrane from elements while continuing to deliver thermal efficiency.

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. 06 13 2007 by richard l. Flat roof developments protected membrane roof.

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.