Roof ventilation is necessary for the normal functioning of the entire structure. In practice, it is often neglected by laying expensive roofing on an improperly prepared base. As a result, having paid a lot of money, the owner of the house remains dissatisfied.
Why roof ventilation is needed
Only specialists know about ventilation of a roof made of soft tiles, because the entire system is not visible from the outside. The owners often do not understand where water can come from under a completely new and high-quality roofing material.
Our grandfathers equipped a dormer for ventilation of a soft roof in the attic, they did not live in attics, they did not insulate the roof. But today every meter of real estate is used, so construction technologies have changed significantly.
The house is heated, so the warm air, rising higher and higher, is collected under the roof. The temperature of the roofing material rises. In winter, the snow melts from this heat, then freezes again, the roof is covered with ice. Melt water finds joints and leaks. At the edges of the roof and in the gutters, it freezes, the cornices are covered with icicles.
The first symptom of a soft roof lack of ventilation is icicles on the gutters.
Roof ventilation system
The ventilation scheme for metal roofing, which is widely used today, is based on the principle of upward movement of warm air. Air masses pass from the eaves to the ridge itself under the roof. The best results are obtained by ventilation of a roof made of metal tiles, if air masses pass under the entire roof plane.
Roof ventilation functions
- Elimination of vapors entering the roof structure from the heated premises;
- Regulation of temperature on the roof surface, prevention of icing;
- Reducing the temperature of the sun-warmed roof.
Ventilation of soft tile roofs is carried out using point outlets or aerators or continuous (ridge) outlets. Aerators are mounted on top of the roof. They come in a variety of designs and shapes. You can choose the right one for your home design.
Continuous outlets are mounted along the length of the roof. They guarantee the best roof aeration and can be covered with roofing material, which makes them completely invisible.
Flat roof ventilation
Ventilation of a flat roof is carried out using special aerators. The main purpose of flat roof ventilation is to remove damp and warm air masses coming from the room from the thermal insulation layer. Otherwise, the service life of the roof will be significantly reduced.
