Heat and humidity are the main enemies of the roof. To prevent them from accumulating, you must provide permanent ventilation. Ventilation can be natural or ensured with the help of a forced ventilation system, using turbines or deflectors.
Natural ventilation, achieved by the natural convection of the air, works all year round, in all geographical areas regardless of weather conditions. Usually the lack of roof ventilation leads to condensation and problems associated with the microbiological attack on the wooden structure of the roof.
According to Denver roofing companies with a sterling reputation, roof ventilation is the simple process of ensuring the free movement of air through the ventilation gap built behind the roof cover.
Efficient ventilation can be achieved when you ensure a balanced distribution of the surface of the ventilation holes – 50% for air intake and 50% for air exhaust. Air intake vents should be placed at the minimum level of the roof, as close as possible to the eaves, or in the area of the soffit, while air vents should be arranged as close as possible to the maximum level of the roof, in the vicinity of the ridge.
In order to guarantee the proper air circulation through the natural phenomenon of convection and implicitly to ensure the efficient ventilation of the roof, a level difference must be established between air intake vents and air exhaust vents, of at least 91 cm.