Inverted Warm Deck Flat Roof

Inverted warm deck flat roof insulation click to enlarge nowadays flat roofs have the warm roof type.

Inverted warm deck flat roof. No vapour control layer is required. In the case of a flat roof insulation is usually in the form of either a rigid board above the deck or a fibrous quilt immediately above the ceiling depending on the type of roof construction. An inverted roof construction sees the principal thermal insulation layer located above the roof structure and also above the waterproofing this method results in the waterproofing the structural deck and the support structure all being at a temperature similar to that of the interior of the building. Vegetation contained in the sedum.

Insulated below the deck. 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. Vegetation contained within soil. Insulation can either be put below the weather proof membrane which is called a warm roof deck construction or above the waterproof membrane which is called an inverted warm deck.

We have a wide range of roof insulation products including flat roof insulation tapered insulation and pitched roof loft insulation. This means that the insulation should be highly resistant to water absorption for example an extruded polystyrene based product which will not be affected by water or repeated freeze thaw cycles. We also have insulation boards suitable for more specialist roof applications for example inverted roof insulation and balcony insulation. On pitched roofs the definition of warm or cold can relate to the entire space below the pitch of the roof but above the ceiling.

Warm cold and inverted. Flat roof design guide. Insulated above the waterproofing. The structural substrate of the flat roof.

Inverted roof 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. There are three recognised designs of flat roof construction. Inverted roofs should only be used with timber solid or i joist or metal profiled decks if they have been designed to support the loads particularly from the depth of ballast needed to retain the insulation material. Inverted roofs are a type of warm flat roof where the insulation is above the waterproofing layer.