These systems are typically applied in conditions where there is extensive roof traffic or to protect from excessive weather conditions such as multiple hail events.
Inverted roof membrane assembly detail.
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These systems are typically applied in conditions where there is extensive roof traffic or to protect from excessive weather conditions such as multiple hail events.
Protects roof layers from uv and mechanical damage inverted roofs are typically assembeled as vegetative ballasted or plaza roofs.
Explore each roof assembly in greater detail below or dig into the downloadable materials to learn more.
Inverted roof membrane assembly irma offer superior protection of the roof membrane from foot traffic and mechanical damage.
In an irma the system s insulation is installed above the waterproofing membrane instead of below as in a conventional roof assembly.
Inverted roof systems are also referred to as upside down roof assembly.
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.
An irma system is the most common type of roof used on modern high rises today.
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Insulation boards are loose laid on top of the membrane and then weighted down with paving slabs or gravel ballast.
Inverted roofs have significantly lower maintenance costs than conventional low slope roofs thanks in large part to the insulation in the inverted assembly protecting the roof membrane from mechanical damage during and after construction as well as temperature extremes that cause stress.
This assembly has produced a variety of terms such as an upside down roof or inverted roof system and in 1968 a patent was issued on the insulated roof membrane assembly irma developed by j s.
More generically others may categorize an irma or pmr system as built up roof system or bur.
In an inverted membrane system the coventional membrane arrangement is invereted or turned upside down.
The membrane is further protected by ballast overtop the insulation.
Inverted roof membrance assembly irma systems are used in applications where the membrane requires protection from site specific hazards.
Inverted roofs are designed with the waterproofing layer usually a liquid applied membrane beneath the insulation.
Some references may use the term protected membrane roof or pmr system.
Inverted roof membrane assembly irma systems are used in applications where the membrane requires protection from site specific hazards.
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