Inverted Roof Vs Warm Roof

Warm roofs a warm roof includes insulation above the structural deck.

Inverted roof vs warm roof.

Inverted roofs because of the need for ballast paving or vegetation inverted roofs typically weigh about 90kg m2 which means the structural load is the. Warm roof insulation ensures the entire roof structure is insulated meaning a warm deck roof is more energy efficient than a cold roof. The breakdown warm roof vs cold roof. Rigid extruded polystyrene insulation has minimal water absorption due to its closed cell structure.

There are three recognised designs of flat roof construction. The waterproof covering is placed above the insulation and a vapour control layer is placed below the insulation. This is also known as an upside down or protected membrane roof. Namely the insulation layers.

You create a warm roof or a cold roof simply by applying the layers of the roof in a different order. 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. Installing a warm roof can be extremely straight forward and simple to do. In a cold roof the insulation is applied between the rafters but in a warm roof the insulation is applied on top of the existing roof surface.

Inverted roof designing buildings wiki share your construction industry knowledge. The thermal efficiency isn t as good as with warm roof. In a warm roof construction the principal thermal insulation layer is located above the structural decking resulting in the structural deck and support structure being at a temperature close to that of the interior of the building. When we talk about a warm roof vs a cold roof what we re really talking about is the insulation of the flat roof.

Warm cold and inverted. It does not require a vapour retarder. So what kind of difference does this make. 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.

Benefits of inverted roofs. It is a warm roof but with the insulation above the waterproof membrane and structural deck. A cold flat roof insulation requires more work taking off old boards and replacing them and the roof surface.