Often you can encounter the problem of insufficient ventilation. Moreover, we can talk about both industrial or public, as well as residential buildings. With an unsatisfactory level of natural ventilation, the problem is solved using 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 roof fans on the roof will be the best option.
Their advantage is to save space, length of ducts, as well as to preserve the aesthetic appearance of the facade (unlike those installed on the walls and window openings).
In turn, due to this arrangement, roof fans require additional protection against external influences. They are mandatory equipped with a protective cap and mesh. The cap protects against rain, and the net protects against wind.
The roof fan of the WRC is divided by the method of installation on the channel, channelless and universal. Ducts are attached to the outlet of the ventilation duct or pipeline. Channelless are designed for single-level roofs. Universal can be installed there and there.
Forced systems are widely used for ventilation in large industrial and industrial facilities. Specialized roof fans are able to organize the exhaust of exhaust gases, smoke, high temperature air, etc. If necessary, fans are made from corrosion-resistant materials or explosion-proof. For such purposes, as a rule, radial fans are used. For a normal environment - diagonal.
Nowadays, not a single sports, entertainment complex or shopping center can do without forced ventilation . To ensure the ventilation of such rooms, powerful roof fans are required that operate in continuous mode or in automatic mode.
In a private house or apartment, the fans can be turned on manually or the automatic mode can also be used (the system will react to air temperature). In residential buildings, forced ventilation is most often arranged in kitchens, in bathrooms, in chimneys that provide a fireplace or boiler. Such a system has become particularly relevant in connection with the proliferation of sealed windows and wall structures that interfere with natural ventilation. But you need to remember that when installing roof fans on ventilation ducts, in general, the ventilation system deteriorates (when off).
Production of roof mounted fans has been established both in Russia and the CIS countries, and abroad. Swedish Systemair roof fans are especially reliable and technologically advanced. They are equipped with a self-cleaning system and additional soundproofing. The engines on them are installed with an external rotor. In the range on the market, there are roof fans designed specifically for fireplaces, for large public areas, industrial, heat-resistant and others.