The KimaAir Outside/In is the new way of protecting your roof space against excessive condensation. The fitting is installed from outside the roof space in new builds or during renovations.
The KimaAir is made of polypropylene which ensures durability, as well as flexibility during installation and in use.
The KimaAir has a venting area of 56cm2 per unit, so it complies with the regulations for 5mm continuous ventilation at the ridge. Therefore, the requirement will be for one KimaAir per pitch truss, fitted next to a rafter, two tile battens down from the ridge, on either side of the roof pitch.