Inverted Roof Membrane System

Inverted roof membrance assembly irma systems are used in applications where the membrane requires protection from site specific hazards.

Inverted roof membrane system.

Insulation boards are loose laid on top of the membrane and then weighted down with paving slabs or gravel ballast. Good insulation qualities and low thermal conductivity are required to ensure the low u value of the roof. 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. It is therefore essential the insulation layer is rot proof and durable.

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. The membrane is further protected by ballast overtop the insulation. Inverted roof membrane assembly irma can be constructed with virtually any type of roof membrane including bur modified bitumen and single ply systems. Inverted roofs are designed with the waterproofing layer usually a liquid applied membrane beneath the insulation.

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. What is an inverted roof. In an irma the system s insulation is installed above the waterproofing membrane instead of below as in a conventional roof assembly. Whilst the inverted roof is a robust system the insulation layer does not benefit from the protection of the waterproofing membrane.

Inverted roof systems are also referred to as upside down roof assembly. For inverted warm roofs a hot melt roofing system provides a seamless waterproofing solution that can easily adapt to upstands protrusions and other details. Irma roofs protect the membrane from ultraviolet degradation and constant temperature changes. 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.

Benefits of inverted roofs. The system is also referred to as a protected membrane or upside down roof. Inverted roof membrane assembly irma systems are used in applications where the membrane requires protection from site specific hazards. 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.