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, paying a lot of money, the owner of the house remains unhappy.
Why roof ventilation is needed
Only specialists know about ventilation of roofs from soft tiles, because the whole system is not visible from the outside. Owners often do not understand where water can come from under a completely new and high-quality laid roofing material.
Our grandfathers equipped a dormer-window for ventilation of a soft roof in the attic, didn’t live in the attics, they did not insulate the roof. But today, every meter of real estate is used, so construction technology has changed significantly.
The house is heated, so warm air, rising higher, gathers under the roof. The temperature of the roofing material rises. In winter, the snow melts from this heat, then it freezes again, the roof is covered with ice. Meltwater finds joints and leaks. At the edges of the roof and in the gutters, it freezes, the eaves are covered with icicles.
The first symptom of the lack of ventilation of the soft roof is icicles on the gutters.
Roof ventilation system
Widely used today, the scheme of ventilation of a roof made of metal is based on the principle of movement of warm air up. From the eaves of the roof to the ridge itself, air masses pass under the roof. The best results are given by ventilation of a roof made of metal if air masses pass under the entire plane of the roof.
Roof ventilation functions
- Elimination of vapors falling from heated rooms into the roof structure;
- Regulation of temperature on the roof surface, prevention of icing;
- Reducing the temperature of a sun-warmed roof.
The ventilation of the roof from soft tiles is carried out using point exits or aerators or continuous (ridge) exits. Aerators are mounted on the top of the roof. They come in different designs and shapes. You can choose the one suitable for the design of your home.
Continuous exits are mounted along the length of the roof. They guarantee the best aeration of the roof, roofing material can be laid on top of them, which makes them completely invisible.
Flat roof ventilation
Flat roof ventilation is carried out using special aerators. The main purpose of flat roof ventilation is the removal of moist and warm air masses coming from the room from the insulation layer. Otherwise, the service life of the roof will be significantly reduced.
