Not so long ago, houses were built according to a certain principle, the attics in them were cold, and in the space under the roof they did not make rooms. This did not imply the need for insulation. At the same time, there was free space under the roof, through which the air masses could rise up from the room. After that, they went outside through the roof. For this, there were always gaps in the eaves, the roof, as well as the gables. Such conditions made it possible to exclude the accumulation of moisture in the materials. If you are interested in saving, a water aerator will allow you to reduce the costs that go to pay for utilities. But the article is about other devices. Today, in order to save energy resources, roofs have been insulated; at first, this eliminates heat loss. In the attics they equip the rooms, and due to the rapid pace of private construction, the structures of the rafter systems are installed from material that is not sufficiently dried. According to developers, it should ripen on the roof. A sewer aerator today can also be found on sale, however, it has a slightly different task than the one described in the article. In order to get an insulated roof, a roofing cake is installed, different materials are stacked on top of each other. They should be responsible for the preservation of heat, as well as the insulation of water and steam. This leads to the fact that all the gaps through which air could escape, turn out to be closed by a vapor barrier. Moisture accumulates in an airtight under-roof space and in roof structures. If you are interested in the aerator nozzle, then it should not be confused with the device, which is discussed in the article. Speaking of the above, after a few years, the owners have to deal with the fungus, placing buckets in the attic. This is the result of the arrangement of roofs, in which there is no good ventilation system with an influx of fresh air.
Aerator Description
An aerator is an element that is used to create a roofing cake. In the process of carrying out these works, three ventilation layers are used, one of which is in the inner space of the attic, the second is located between the insulation and the waterproofing layer, the third is under the roofing, but this layer is equipped if necessary. Creating simple air spaces is not enough. It is necessary that the air walk, moving from the ridge to the cornice. It must not linger in certain places so that condensation does not form. An aerator is an element that is designed to enhance air circulation.
Varieties of aerators
The described elements are able to provide ventilation in individual sections of the roof system, so they are called point. The second type is installed along the entire length to ensure ventilation, such components of the roofing system are called continuous.
Description of point aerators
A spot aerator is a component of the roof, which is necessary for installation on roof slopes. They can be located on the skate. The first variety is installed where it is necessary to increase the movement of air, this can include complex or long slopes, a roofing valley and ridges, as well as areas where the ventilation gap may be interrupted. A dormer-window or a “lantern”, which is sometimes installed on the roof, can act as a barrier. In such areas, the aerator is mounted on both sides of the element, which interferes with the movement. In order to ensure the most effective ventilation, pitched aerators must be placed correctly, they are installed 15 centimeters from the ridge. If the structure is not insulated under the ridge, then a pressure chamber will form on top. It will receive vapors that escape from the roof.
Description of skate models
A ridge aerator is an element that is intended for attics. In this case, in the under-roof space, thermal insulation under the ridge can be made. Using the described element, it is possible to ensure steam exit through the structure of the skates. The principle of operation here is based on convection, this is due to the fact that warm air will rush up, where it will find a way out. The advantages of this model are the fact that it is able to remove harmful substances from bitumen, which is used to equip soft roofs, to the street. Aerators on the roof are very difficult to notice, as they are hidden under the cover.
Continuous tile aerator
These components of the system are most often supplemented by ventilation, which is equipped on the basis of natural tiles. Installation is made along the entire length of the ridge, cornice or ridge. A similar device is popular and is a ventilation ridge tape. With it, you can waterproof a skate of a diagonal or horizontal type. Due to its elasticity, the tape is able to adapt to the bends of the structure, and the presence of an adhesive base isolates the roof from the penetration of precipitation. Such a tape can provide additional ventilation, since a strip of a breathing membrane passes through the center of the roll. Thanks to this, the pairs move freely outside. For cornice overhang, it is customary to use an air element, which has a ventilation bar. With it, it is possible to provide circulation, among other things, it will act as a seal between the ridge and tile. Such aerators on the roof have barriers that exclude the possibility of penetration into birds. You can not be afraid that debris, leaves and other foreign elements will get inside.
Features of the installation of the aerator in the arrangement of the roof
When the master is laying a new roof on a surface that is made of reinforced concrete slabs, you can resort to installing a plastic aerator, it should be on the bottom layer of material. In this case, it is necessary to be guided by a certain technology, which provides for the presence of holes in the layer of screed and insulation. You must get to the vapor barrier. The formed hole should have a diameter that varies from 80 to 120 millimeters. Then expanded clay is poured into the hole, and then sealant, glue or mastic can be applied to the horizontal surface of the aerator. This will guarantee better adhesion of the device to the roof surface. When the Technonikol aerator is installed, you should wait until the mastic or sealant has hardened, only after that you can carry out additional fixing of the fan using 6 self-tapping screws. They must be screwed around the circumference of the pipe skirt. At the next stage, the upper layer of the roofing carpet should be fixed, while the aerator should be in the place where the end overlap of the roofing sheet carpet will be carried out. The lap width should be 150 millimeters.
Methodology
The master should remember that at the installation site of the aerator, the coating should be laid as freely as possible. After you place the patch of the roofing carpet and the aerator, you need to apply a patch from the top layer of material, so that it overlaps the skirt of the device. Enter the coating should be on the surface of the roofing cake at 150 millimeters.
For reference
When installing aerators, it must be taken into account that the roofing device may assume the presence of only one layer. In this case, the ventilation element must be installed directly on the screed.
Expert Advice
If you decide to carry out current repair of the roof, then you need to make a hole in the material, the diameter of which can vary from 80 to 120 millimeters. Depending on the number of layers, the hole may reach the screed or vapor barrier. After that, you can install and fix, if the deflector is installed on the base, which is made of a profiled sheet. In this case, you can follow the above rules. However, it must be remembered that there are some differences. They are expressed in that the hole in the place of installation of the aerator should pass through the upper layer of thermal insulation, reaching the lower layer of insulation. After this, the structure can be installed, strengthening it with screws to the surface of the profiled sheet. Do not confuse the above devices with those called aerators for water - they just mean saving the corresponding resource in the house.