skillion roof on a house is a shallow pitched roof usually pitched
between 1 - 7 degrees and is usually quite low offering the
minimal permissible height of approx 2.4 metres.
with this type of roof, requiring venting during summer, can
only be successfully achieved by venting direct to atmosphere,
much the same as venting a raked ceiling that normally has a
This approach requires a roof ventilator on the roof with an
adjustable type ceiling vent, or register, installed on the
underside of the roof ventilator so as to control the velocity
of air movement passing through it.
ceiling vent employed needs to be a highly efficient type that
allows a high flow when required and not some questionable plastic
product out of a hardware store that works poorly to begin with
and not at all when dust gets into the mechanism and breaks
as a consequence. Then you end up with a dust trap that continually
reminds you of your choice.
ingress to this area is critical as the flow could often be
high depending on the convection transfer of heat through the
of air is also essential with air ingress via door and windows
favouring the southern and eastern side of the area
you're going to go the trouble of spending time and money do
it properly instead of on the cheap, because it will come back
and bite you........at the worst possible time.
solutions will differ between Brisbane, Sydney, Melbourne and