The upper trafficked surface of the balcony.
Inverted warm deck flat roof.
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.
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.
An inverted roof is a form of warm roof in which the waterproofing layer is beneath the thermal insulation rather than above it.
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.
No vapour control layer is required.
Warm cold and inverted.
Insulated above the waterproofing.
Inverted warm deck flat roof insulation click to enlarge nowadays flat roofs have the warm roof type.
Vegetation contained within soil.
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.
Inverted roofs are a type of warm flat roof where the insulation is above the waterproofing layer.
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.
Flat roof design guide.
Insulated below the deck.
Insulated above the deck.
Vegetation contained in the sedum.
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.
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.
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.
