Double ridge ventilation with Redpath
Raised Ridge feature is optional in twin skin or singleskin covering.
Double ridge ventilation is still an option available
on the Ultraspan design. The double roof vent system offers the grower
the extra flexibility of being able to operate the leeward roof ventilators
dependant on direction of the outside wind.
On warm calm days the extra roof opening capacity
(up to 33% of floor area) that double ridge ventilators can offer allows
for improved temperature control. The ventilator has been specially
designed to ensure that the outer edge of the ventilator is lifted well
above the ridge line (apex) of the structure. This has the effect
of creating a low pressure pocket of air on the leeward side of the ventilator
for rapid evacuation of the greenhouse environment. Redpath double
ridge ventilators incorporate the special raised ridge design for superior
ventilation in marginal conditions.
