Roof Membrane Assembly

The primary distinction of a protected membrane roof assembly pmra is that the roof insulation is placed on top of the membrane.

Roof membrane assembly.

We formulate bespoke products to match specific membrane manufacturer requirements. 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. Inverted roof systems are also referred to as upside down roof assembly. More generically others may categorize an irma or pmr system as built up roof system or bur.

Inverted roof membrane assembly irma offer superior protection of the roof membrane from foot traffic and mechanical damage. Roofing membrane adhesives paramelt offers a comprehensive range of dynol adhesives for partial or full surface gluing of epdm tpo and pvc single ply roofing membrane as well as for specific applications like roofing up stands and façade. Aluminum coatings that are highly reflective. Some impossible to survey roof types include.

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

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. Roofs that are heavily ballasted. Shingled roofs when not conducted under roof. It is the simplest blue roof that can be created.

Smooth tpo fleece back tpo self adhered tpo tpo colors extreme tpo. Gaf tpo roofing membranes include. Irma can be referred to as an insulated roof membrane assembly. Metal roofs when not conducted under roof.

Roofs retaining moisture from installation over lightweight concrete decks. The finished roof s thickness is usually between 30 and 60 mils thousandths of an inch 0 75 mm to 1 50 mm. In an irma the system s insulation is installed above the waterproofing membrane instead of below as in a conventional roof assembly. 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.

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.