Inverted Roof Insulation System

Inverted roofs are designed with the waterproofing layer usually a liquid applied membrane beneath the insulation.

Inverted roof insulation system. 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. Invented by dow in the late 1960 s an inverted roof system uses dupont styrofoam brand xps insulation to protect the membrane helping improve the performance and longevity of the entire roof system. It is also protected from damage by traffic on the roof such as people walking the movement of equipment and so on. Rigid extruded polystyrene insulation has minimal water absorption due to its closed cell structure.

Used as part of established inverted roof systems it offers a euroclass a1 rating and a high compressive strength. An inverted roof is quite simply where the waterproofing layer is installed over the structural deck rather than over the insulation. The world s thinnest inverted roof insulation once in a while a british product is developed which is an industry game changer. 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.

It is therefore essential the insulation layer is rot proof and durable. In an irma the system s insulation is installed above the waterproofing membrane instead of below as in a conventional roof assembly. Inverted flat roof waterproofing combined with a thermal insulation is essential for a buildings waterproofing and energy saving thermal insulation. Inverted roof membrane assembly irma can be constructed.

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. Inverted roof systems are also referred to as upside down roof assembly. Whilst the inverted roof is a robust system the insulation layer does not benefit from the protection of the waterproofing membrane. Quantum is an innovative insulation system that can revolutionise a construction build.

Foamglas invatherm is a non combustible thermal insulation product designed to protect the waterproofing on inverted roofs. The membrane is further protected by ballast overtop the insulation. This makes it the only material suitable and approved for inverted roof applications.