This system is called warm deck insulation and eradicates the condensation and venting issues associated with the cold deck system.
Warm deck roof advantages.
Ventilation is required for these roofs.
Fortunately these days there is a better form of insulation available for your flat roof.
A warm flat roof or a built up roof bur is one where all the insulation is above the joists deck making them part of the warm fabric of the building.
A cold roof design usually leaves a 50mm gap between the top of the insulation and the roof deck above.
While flat roofs are not the most glamorous option they have advantages.
The insulation is immediately below the waterproofing layer.
The insulation in a warm deck roof is installed immediately below the roof membrane on top of the roof deck usually with a vapour control layer underneath the insulation.
Introduction warm cold roofs this guidance offers guidance on the difference benefits between warm and cold roofs.
Guidance advice on warm cold.
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.
The layer of insulation is essentially placed outside of the roof.
For a warm roof the advantages are.
The insulation can be adhered mechanically fixed or loose laid.
Landscaping flat roofs offers an effective and practical use of space whilst helping to sustain and replace lost habitats in the process.
The benefits of green roofs with continued urban expansion absorbing the habitats of our indigenous plants insect and birds living roofs can provide fresh areas for the local ecology to thrive.
Warm roof designs will make the entire structure of the building warm in order to avoid cold bridging an element of the building that allows heat or energy loss.
The vapour control layer is above the decking but below the insulation.
The solution warm deck insulation.
Warm deck flat roof.
Benefits of inverted roofs.
Ease of installation over the top of your existing roof deck as long as it s in good condition.
However this also allows cold air to enter.
A cold deck roof is where the insulation is placed between the joists rafters or in between the ceiling joists in the case of a pitch roof.
The simplicity of a warm flat roof makes it one of the most popular designs providing an effective and easy way of insulating a building.
Knowing the pros and cons such as the price of flat roof repair the roofing material required potential ponding water and roof leaks help make a decision that is best suited for your building.
This allows air to circulate.
Because this design works by conserving heat no ventilation.
