Roof Membrane Assembly

Roofs retaining moisture from installation over lightweight concrete decks.

Roof membrane assembly.

Some impossible to survey roof types include. 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. Synthetic rubber thermoset this type of membrane roof is made of large flat pieces of synthetic rubber or similar materials. Although the theory of a pmra assembly can be adapted many ways the most common form consists of a roof deck a directly adhered or loose laid roof membrane a loose laid extruded expanded polystyrene a loose laid.

Metal roofs when not conducted under roof. In an irma the system s insulation is installed above the waterproofing membrane instead of below as in a conventional roof assembly. Irma can be referred to as an insulated roof membrane assembly. The finished roof s thickness is usually between 30 and 60 mils thousandths of an inch 0 75 mm to 1 50 mm.

A 3 ply hybrid bur differs from other membrane options due to its combination of a 1ply base sheet with two plies of glass felt that enhances the performance of the membrane with a quicker installation time and less weight on the roofing system itself. At elite roofing built up roofing membranes are some of the most popular options that we see for roofing repairs or new constructions. We formulate bespoke products to match specific membrane manufacturer requirements. Inverted roof membrane assembly irma offer superior protection of the roof membrane from foot traffic and mechanical damage.

Aluminum coatings that are highly reflective. These pieces are bonded together at the seams to form one continuous membrane. Roofs that are heavily ballasted. A blue roof can be created on a typical hydrotech pmr protected membrane roof assembly utilizing standard loose stone for ballast.

More generically others may categorize an irma or pmr system as built up roof system or bur. It is the simplest blue roof that can be created. Inverted roof membrane assembly roofs. The primary distinction of a protected membrane roof assembly pmra is that the roof insulation is placed on top of the membrane.

Inverted roof systems are also referred to as upside down roof assembly. Using standard ballast stone the water in the blue roof is stored within the void spaces of the stone and to the required level above the ballast. Smooth tpo fleece back tpo self adhered tpo tpo colors extreme tpo. Some references may use the term protected membrane roof or pmr system.

An irma system is the most common type of roof used on modern high rises today.