What Is An Inverted Roof System

In an inverted membrane system the coventional membrane arrangement is invereted or turned upside down.

What is an inverted roof system.

What is an inverted roof. Inverted roof designing buildings wiki share your construction industry knowledge. What is an inverted roof. Inverted roof systems a variation of a warm roof the main difference between inverted roof systems and other roof systems is in the position of the waterproofing membrane.

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. Single ply roof types. Inverted roofs typically last longer than traditional ones. However deferring a roof replacement by 10 years can save hundreds of thousands of dollars.

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 applications are becoming increasingly popular for new construction projects due to a number of benefits that we think are important to highlight. The upside down sequence means the deck is waterproofed first then insulated and finally finished with paving or ballast. Inverted roofs have their waterproofing layer beneath the insulation instead of above it as in other forms of roofing.

The average life of a roof system in north america is around 16 years and the depreciation period for a commercial roof 39 years. Inverted roof systems in this type of construction the principal thermal insulation material is applied on top of the weatherproof covering so that the complete roof construction including roof covering is kept at warm temperatures during the winter months and at moderate temperatures during the summer months. An inverted roof also known sometimes as a protected membrane or pmr roof uses the same materials as a conventional roof but places insulation on the top of the membrane. In an inverted roof construction the sika trocal membrane is installed directly to the structural decking usually concrete and the innobond thermal insulation is installed on top of the membrane.

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 system is also referred to as a protected membrane or upside down. Inverted roof membrance assembly irma systems are used in applications where the membrane requires protection from site specific hazards. Extruded polystyrene such as kingspan greenguard has notable compressive capabilities that make it an ideal solution where there may be considerable foot traffic.