Lack of ventilation of the roof structure will most likely
create damage and will reduce its durability and efficiency.
Humidity is the main enemy of the roof structure. It can be
caused by condensation, rainwater penetrating through the roof, or
moisture-filled air from inside of the building. Basically, in rooms such as
bathrooms or kitchens, there is plenty of humid air which can penetrate through
the cracks in the ceiling and reach the roof, forming condensation when meeting
cold surfaces.
One of the main roles of roof vents is to prevent moisture
and its unwanted effects: insect attacks and mold. As we know, moisture
encourages the formation and development of mold, which lowers the resistance
of the wood structure and leads to the decomposition of the material.
Subsequently, the decomposition of the material attracts different insects that
contribute to the total damage of the roof`s structure. Moreover, regardless of
whether you use anti-condensation membranes or vapor barriers, moisture can
still penetrate through various roof cracks.
Pitched roofs are considered to be cold roofs with subventilation.
There are two types of cold roofs, with or without an attic. Both variants
require roof vents along the ridge the eaves, created with specially designed
accessories.
To prevent mistakes in proper ventilating your roof, we
recommend that you call roofing specialists at https://www.expertroofinginc.com/areas-served/illinois/cook-county/roofing-company-in-barrington-il/ to get the best advice and service.