Cold Flat Roof Ventilation

The solution seems reasonable but we are definitely going to end up with a cold roof though not in the traditional sense.

Cold flat roof ventilation.

Their layer of insulation is beneath the roof decking and the roofing membranes. Cold flat roof ventilation corrected this is a followup video on how to fix problems with cold flat roof ventilation. That means the rest of the roof is protected from heat. However they help to not only stabilize the temperature within the roofing system and attic but also allow moisture to escape.

2011 code of practice for control of condensation in buildings stipulates that there should be a ventilation gap between the insulation and the bottom of the flat roof deck of at least 50mm. We also have a parapet on a flat roof and the ventilation solution is not through the cladding but the design flows air over the parapet. Cold deck flat roof the thickness of insulation required will vary depending on the material you decide to use and the manufacturer s specification. In a concrete deck for example this gap could be created by fixing 50x50mm timber battens at 600mm centres and attaching the insulation to underside of these battens.

Another common flat roof vent is the mushroom vent. This significantly reduces the amount of rising heat and in turn condensation. It has the shape of a mushroom once it is completely installed. In many cases cold roofs are used in storage spaces where there is no habitation occurring underneath.

Correcting ventilation in cold flat roofs isn t that easy if the flat roof and. Why don t cold roofs need to be ventilated. A ventilation gap usually 50mm should be. This is a long slender aluminum vent that has a larger cover that is a domed shape.

We have had long discussions with mbc about cold vs warm roofs.