Benefits of inverted roofs the great benefit of inverted roofs is that the insulation protects the membrane from extremes of weather such as frost uv exposure and the expansion and contraction that comes about from summer winter temperature cycles which can be as much as 80 c on some roofs.
Upside down roof system.
Illustrations courtesy of american hydrotech inc.
In an inverted membrane system the coventional membrane arrangement is invereted or turned upside down.
The so called upside down roof is simply a rearrangement of the normal elements of a roofing system to try and overcome some of the disadvantages of the conventional arrangement.
Also known as a protected membrane or upside down roof inverted roofs employ insulation which can resist water absorption provide excellent thermal performance be unaffected by freeze and thaw cycles withstand surface traffic and be protected from uv and mechanical damage among others.
Insulation boards are loose laid on top of the membrane and then weighted down with paving slabs or gravel ballast.
In an inverted membrane system the conventional membrane arrangement is inverted or turned upside down.
Inverted membrane roof systems.
Inverted roof membrane assembly irma systems are used in applications where the membrane requires protection from site specific hazards.
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.