Waterproofing solutions for inverted roofs 2 ply system base sheet over concrete system type.
Inverted roof waterproofing system.
Inverted roof membrance assembly irma systems are used in applications where the membrane requires protection from site specific hazards.
Architectural roofing waterproofing 2009 vol.
Liquid applied waterproofing systems are used as the waterproofing layer below the insulation layer usually directly.
5 in an inverted membrane system the coventional membrane arrangement is invereted or turned upside down.
On the waterproofing layer and as soon as it has dried extruded polystyrene panels suitable for application to an inverted roof are fitted by simple placement.
The inverted waterproofing insulation system is applicable for all types of flat roofs as it offers an efficient solution for new construction but also for renovation of old flat roofs as is it possible to install an inverted roof over an existing roof build up.
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 is quite simply where the waterproofing layer is installed over the structural deck rather than over the insulation.
The upside down sequence means the deck is waterproofed first then insulated and finally finished with paving or ballast.
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.
The system is also referred to as a protected membrane or upside down roof.
Inverted roofs are designed with the waterproofing layer usually a liquid applied membrane beneath the insulation.
Inverted roof systems a variation of a warm roof.
The geotextile or plastic mat is then placed.
Benefits of inverted roofs.
Insulation boards are loose laid on top of the membrane and then weighted down with paving slabs gravel ballast or soil medium in the case of green or vegetative roofs.
While traditional roofs place the insulation under the protective membrane inverted roofs are designed with the waterproofing layer usually a liquid applied membrane beneath the insulation.
Rigid extruded polystyrene insulation has minimal water absorption due to its closed cell structure.
Liquid applied waterproofing systems are used as the waterproofing layer below the insulation layer usually directly.
Inverted roof membrane assembly waterproofing options heat weld or cold applied 2 ply 3 ply direct to deck 2 ply 3 ply liquid applied jm sbs base sheet.
The system is also referred to as a protected membrane or upside down roof.
The mariseal system inverted flat roof waterproofing method offers a simple build up waterproofing that features a protected waterproofing membrane and loose laying insulation boards.
