With a warm roof the insulation is installed on top of the existing surface rather than in between the rafters.
Warm roof boards.
With a warm roof moisture is isolated before it can reach the roof deck meaning condensation can t form and weaken the structure.
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.
The insulation is immediately below the waterproofing layer.
A cold flat roof insulation requires more work taking off old boards and replacing them and the roof surface.
The vapour control layer is above the decking but below the insulation.
The insulation can be adhered mechanically fixed or loose laid.
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Warm roofs offer a superior thermal performance and therefore come with a higher cost.
The thermal efficiency isn t as good as with warm roof.
A warm roof uses solid pir insulation boards that sit above the roof deck topped by moisture tolerant boards.
This changes the dew point where warm and cold air streams merge and turn to liquid.
The great thing about a warm roof is that if your.
Installing a warm roof can be extremely straight forward and simple to do.