Protected Membrane Roof Design

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.

Protected membrane roof design.

The construction range includes vapour permeable wall membranes including enhanced thermal performance solutions vapour control and air barriers also with enhanced thermal performance solutions and a range of sealing tapes and other accessories to provide a one stop shop for all requirements. Protect provide a comprehensive range of construction membranes roofing membranes and roofing accessories. A pmr incorporates an upside down approach to insulating the roof. Frequently rigid panels made of extruded polystyrene are used in pmr construction.

In a protected membrane roof the mineral aggregate functions as ballast that keeps the insulation in place. Ballast options and flexibility. It is applied dry on to the surface of the insulation or on top of a filter fabric that is installed on top of the insulation first. The protected membrane roof pmr has represented the best in flat roof technology since it was developed in 1970.

This development has been made possible by the creation of waterproofing membrane materials that are tolerant of supporting a load and the creation of thermal insulation that is not easily damaged by water. This insulation can be placed above the roof membrane protecting the membrane from elements while continuing to deliver thermal efficiency. The chief benefit of pmr roof design is that the covering protects the waterproofing membrane from thermal shock ultraviolet light and mechanical. Membrane roofs are predominately used as a flat roofing system since they are watertight which is critical where water is not shed immediately.

Protected membrane roofing insulation technology has evolved over the decades and some types like rigid extruded polystyrene foam xps is highly water resistant. While experts believed this design would improve the membrane s. Modern green roofs are a type of protected membrane roof. Protected membrane roof planning guide page 3 people make the difference hydrotech s sales representatives and staff work closely with design.

Placing the insulation on top of the waterproof membrane. Membrane roofing is a roof system that creates a continuous watertight covering to protect the interior of a building.