Inverted Roof System Definition

An inverted roof also referred to as a protected membrane or upside down roof is form of flat roof in which the waterproofing layer is beneath the thermal insulation rather than above it.

Inverted roof system definition.

Invented by dow in the late 1960 s an inverted roof system uses dupont styrofoam brand xps insulation to protect the membrane helping improve the performance and. The average life of a roof system in north america is around 16 years and the depreciation period for a commercial roof 39 years. The stunning solution is eaglewing a stretchable linear plan that turns standard roof trusses upside down to form the houses wings the inverted roof framing leaves attic space for insulation and ducting permits an inexpensive reflective flat roof and puts volume in the living space where occupants can enjoy it. Inverted roof systems are also referred to as upside down roof assembly.

Inverted roof membrance assembly irma systems are used in applications where the membrane requires protection from site specific hazards. However deferring a roof replacement by 10 years can save hundreds of thousands of dollars. In this issue the investigations team explains how inverted roofs work outlines their benefits warns of a possible cause of problems and describes an unusual investigation. The ideal assembly for driveways on inverted roofs create a recreational park or plaza on your building s inverted roof including driveways and parking areas.

Inverted roof designing buildings wiki share your construction industry knowledge. These systems are typically applied in conditions where there is extensive roof traffic or to protect from excessive weather conditions such as. The membrane is further protected by ballast overtop the insulation. If a pmr system is specified a slip sheet recommended by the membrane manufacturer should be placed between the membrane and the xps to prevent the insulation boards from bonding to the.

Sbs mb roofing systems can also be used in a protected membrane roof pmr sometimes referred to as an inverted roof membrane assembly irma configuration. Inverted roofs typically last longer than traditional ones. In an inverted membrane system the coventional membrane arrangement is invereted or turned upside down.