The keepa attic vent is used for ventilating attics and or plenum as a roof exhaust vent or as an air intake roof vent.
Lowline roof vents.
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Ventilation methods vary and are determined by type of property and roof type applications.
These vents are static vents that are placed over holes in the roof close to the roof ridge.
Ventilation must comply to bs 5250 2002.
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It alleviates moisture in the winter and heat in the summer to extend roof membrane life.
The roof valve is a low profile static roof ventilator that allows nominal ventilation of hot or moist air from the roof space without the need of wind or power assistance.
Unlike box vents which are square off ridge vents are usually much longer and thinner.
Its low profile dome make it an attractive addition to any roof whether it is mounted near the ridge or on the lower edges of the roof.
They let moisture and hot air exit the attic but they aren t nearly as effective as other types of roof vents and homes generally need to have several of these units for the best results.