3944123 divisions of the building product design group.
Mono pitch roof ventilation.
G2500n vent over fascia vent which allows calculated airflow into the roof cavity vb20 vent vented batten performs two functions.
Through the design and installation of specific product combinations an unimpeded passive ventilation system is created for a skillion mono pitch roof any degree pitch the following product combinations are recommended.
Firstly the vent over fascia vent is fitted to the top of the fascia to allow calculated airflow of 25 000mm per linear metre into the roof cavity.
The klober range of roof vents provide ventilation for both cold and warm pitched roofs and are available in different specifications and colours to fit in with any roof design.
For mono pitched skillion roofs of any degree pitch vent recommends a passive ventilation system comprising a combination of two or three products.
These openings should have an area at least equal to continuous ventilation running the full length of the eaves and 25mm wide see diagram c.
For some more complex roof shapes and mono pitched roofs tile ventilators may be needed to ensure there are no stagnant air pockets in any part of the roof.
Roof with a pitch of less than 15 and those where the ceiling follows the pitch of the roof roof spaces should have ventilation openings in two opposite sides to promote cross ventilation.