Often you may encounter the problem of insufficient ventilation of the room. Moreover, we can talk about both industrial or public, and residential buildings. With an unsatisfactory level of natural ventilation, the problem is solved with the help of a forced ventilation device. There are several options for implementing such a system, although the technical means, in fact, is one - a fan. You can install it on the wall of the building, in the window opening, but the best option would be roof fans on the roof.
Their advantage lies in saving space, the length of the air ducts, as well as maintaining the aesthetic appearance of the facade (unlike those installed on walls and in window openings).
In turn, because of this placement, roof fans require additional protection from external influences. They are without fail equipped with a protective cap and a grid. The cap protects from rain, and the mesh protects from the wind.
Roof fan VKR is divided according to the method of installation into channel, non-channel and universal. Duct mounted on the outlet of the ventilation duct or pipeline. Channelless are designed forsingle level roofs. Universal can be installed both there and there.
Forced systems are widely used for ventilation in large industrial and industrial facilities. Specialized roof fans are able to extract exhaust gases, smoke, high temperature air, etc. If necessary, fans are made of corrosion-resistant or explosion-proof materials. For such purposes, as a rule, radial fans are used. For a normal environment - diagonal.
No sports, entertainment complex or shopping center can do without forced ventilation. To ensure the ventilation of such premises, powerful roof fans are required, operating in constant mode or in automatic mode.
In the conditions of a private house or apartment, the fans can be turned on manually or also use the automatic mode (in this case, the system will respond to the air temperature). In residential buildings, forced ventilation is most often arranged in kitchens, bathrooms, and chimneys that ensure the operation of a fireplace or boiler. Such a system has become especially relevant in connection with the spread of sealed windows and wall structures that violate natural ventilation. But you need to remember that when installing roof fans on ventilation ducts, in general, the ventilation system deteriorates (when turned off).
Production of fans installed on the roof is established both in Russia and other countriesCIS and abroad. Swedish-made Systemair roof fans are particularly reliable and technologically advanced. They are equipped with a self-cleaning system and additional sound insulation. The engines on them are installed with an external rotor. The range on the market includes roof fans designed specifically for fireplaces, large public areas, industrial, heat-resistant and others.
