Inverted Roof Insulation

Insulation boards are loose laid on top of the waterproof usually a liquid applied membrane and then weighted down with paving slabs or gravel ballast.

Inverted roof insulation.

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. Jablite premium inverted roof insulation boards in 200 300 and 200 grades have adequate resistance to the loads associated with light maintenance traffic on roofs and to pedestrian foot traffic on balconies and roof terraces. An inverted roof is quite simply where the waterproofing layer is installed over the structural deck rather than over the insulation. Inverted roofs have their waterproofing layer beneath the insulation instead of above it as in other forms of roofing.

Jablite supplies insulation boards in a range of grades suitable for all flat roof applications. Our range of inverted roof insulation has high compressive strength and increased resistance to water absorption. Jablite supplies insulation boards in a range of grades suitable for all flat roof applications. The calculation is based on an inverted roof construction of 150mm reinforced concrete deck hot melt waterproofing jablite inverted roof insulation jablite filter membrane drainage factor ƒ.

In this issue the investigations team explains how inverted roofs work outlines their benefits warns of a possible cause of problems and describes an unusual investigation. An inverted roof is a form of flat roof where the waterproof layer is beneath the insulation rather than above it. Inverted roof designing buildings wiki share your construction industry knowledge. It is the insulation for protected membrane flat and green roofs.

Rigid extruded polystyrene insulation has minimal water absorption due to its closed cell structure. Jablite premium tapered inverted roof 200 and 300 premium and 200 premium have adequate resistance to the loads associated with light maintenance traffic on roofs and to pedestrian foot traffic on balconies and roof terraces. 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. The table below shows thickness of jablite inverted roof insulation range required to achieve u values from 0 25 w m k down to 0 10 w m k.