Roof Vents - Keep Your Roof Dry
According to your countryīs (stateīs) regulation, every roof construction system has to allow the air flow in and out the space between the roofing material and roof inulation layer.
Purpose of roof ventilation
The
purpose of the roof venting is to convey the moisture from the roof construction and also to avoid the incidence of the thermic tensions (cold air meeting the warm roof surface) on the level of the roofing material or (worse) within the roof construction (roof skeleton, trusses, beams, etc.). Roof ventilation systems bring (even if this sounds strange to you) also
savings of the heating costs and it definitely extends the life-cycle of all used roof components. Properly vented roofs
limit the summer overheating of the roof surface so you donīt feel like in sunroom or sauna each evening when going to bed.
The proper
roof venting limits the condensation of the vapourized water on your roofing surface during the winter months and therefor it decreases creation of the ice dams on the roof and in your gutters. There are several
roof venting types available on the market: - forced roof ventilation systems like wind-driven, electric or solar power (turbine) ventilators they are also called the active roof vent kits; - the numerous passive roof venting systems like e.g. inlet (intake) vents in the bottom part of the roof construction (for example soffit vents) combined with the exhaust vents on the roof surface or on the top of the roof (various vent pipes, roof venting shingles, roof vent caps or the whole roof ridge vents). The roof vents can be categorized based on their shape (gooseneck vents, J-vents, L-vents) or based on the material they are manufactured of (metal roof vents, metal roof ridge vents, ceramic roof vents, fiberglass roof vent, etc...).
power vent
soffit vent
roof ridge vent
air flow
forced roof ventilation
roof venting
