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architectural notes



Roof Cupola

infograhic, cupola venting roof

A roof cupola was the precursor of the modern day roof ventilator

What was a relatively gracious permanent motionless fixture on a house, usually in the centre of the roof, that allowed the roof to ventilate in all weather conditions.
These were times when houses were vented into the roof space so as to maintain a more odour free atmosphere and the cupolas presence on a roof signified elegant living.
It's refinements such as these, in house design, where an architect's contribution can be invaluable.

The cupola was also used as a roof services hub with ancillary venting, other than fireplace chimneys, directed to this point rather than have penetrations all over the roof.

The other item(s) that accompanied a cupola was wall and ceiling vents that allowed a room to aspirate naturally.These were located at the bottom of the external wall and high on the interior. This allowed the heat of the walls to move up inside the cavity and into the roof.

Because these were of a fixed nature, heat loss during the wintermonths could not be controlled and were therefore dispensed with.

Now control of any air flow, at any time, can be gained by using Condor PP ceiling registers

So w hat was once considered an elegant crown on a house has now become a semi industrial after thought with products being installed to do what no one really understands.

Size of cupola or roof ventilator should be chosen according to the size of the roof.

Those who approach the exercise with the 'I don't want to spend a lot of money' are inevitably those who believe that all is equal, and are best not installing anything as their selection will be based on the wrong criteria, which should be performance and not wishful thinking.


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The Cupola

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