A ventilation system represents the airflow getting through
a system of intake and exhaust. Poor roof ventilation is the main cause of building
condensation. For example, in the
wintertime, the heat coming from inside the house melts the snow above and, in
the summer, the hot air inside the attic gets in contact with the cooler
ambient coming through the vents.
Air is naturally circulated by the wind effect together with
the stack effect. This stack effect is known as exhaust and cannot exit the
roof without an inlet for low-pressure air. An example of exhaust vents is
ridge vents, installed between two roof planes, underneath a final layer of
shingles.
Together with the exhaust, roof ventilation also involves
the entering of the cool air, known as intake. This and depends on the regional
climate and roof design and can be hard to be spotted. Usually, these intake
vents are located at the edge of the roof, under the soffit. They allow the
cool air to enter inside the attic and force the warm air to exit.
Aside from the air’s natural circulation, there is mechanical
ventilation, based on a power source. This
ventilation source does not depend on the natural wind power or speed and it is
adjustable. For roof ventilation services and roofing see https://www.expertroofinginc.com/areas-served/illinois/mchenry-county/roofing-company-in-algonquin-il/.
