There are many mechanisms that cannot be called vital, but under certain circumstances their functions are almost indispensable. One of such mechanisms is a variety of air conditioning systems, and in particular, a roof smoke exhaust fan.
The roof fan of smoke removal is intended for expeditious removal from the room of a smoke, various gases and other volatile combustion products arising at fires or other unforeseen circumstances.
In normal times, such installations can work as air conditioning systems, or, being assembled and installed, wait in the wings for efficient operation.for example, they
Types of fans
Depending on the conditions of use and the goals set, various types of fans can be used.
For installation on the roof, the following types of fans are most often used:
- Axial. One of the most common types of fans today. It is a system of blades rotating at a certain speed around an axis (hence the name). This design is the easiest to manufacture and maintain, but at the same time extremely effective, which has earned it great popularity in many areas of human life, including as smoke removal fans.
- Diagonal fans are a further development of axial systems. Due to the special shape of the blades, the air in such fans is sucked in in the axial direction, and is discharged in the diagonal direction.
- Centrifugal fans, also called radial fans, are similar to the previous two, but their design is somewhat more complicated. The operation of such fans is based on the centrifugal force that occurs when air is sucked through specially shaped blades.
Thus, the device of different types of fans is basically the same, but thanks to the original design solutions, it has a number of nuances that distinguish each of them from the others.
The decision to use a particular roof fan in a particular situation must be made on the basis of the operating conditions and the tasks that the smoke extraction system is faced with.
How to choose a fan
Among the most significant parameters by which one or another roof smoke exhaust fan is selected are:
- power;
- ease of installation;
- design reliability;
- durability.
As with any modern device, power is a key property of roof fans. Huge heavy-duty installations are able to purify the air of all harmful impurities from the air in a large area of warehouse or industrial facilities in the blink of an eye.
But for use in small private homes, such power will definitely be redundant. Therefore, first of all, it is necessary to measure the capabilities of the smoke exhaust fan with the tasks assigned to it.
Advice! Choose the power of the fan wisely - too powerful can lead to unnecessary waste of resources, while too weak and economical will not cope with the functions assigned to it.
Simple and convenient installation of roof fans is also an important factor when choosing a specific device.
Most owners prefer to install ventilation systems themselves, so the simplicity and obviousness of the process of assembling and installing a fan on the roof can largely influence the choice of a fan.
The reliability of the design is determined by the quality of the assembly of the entire system, as well as the level of performance of its individual parts. When choosing the necessary smoke exhaust fan, first of all, you should pay attention to the manufacturer of the device.
There are a great many players in the modern ventilation systems market, but in all this diversity there are inevitably leaders.
The most famous and respected manufacturer of ventilation systems today is the Swedish company Systemair.
Its products are used throughout Europe, as well as in the countries of America and Asia. Systemair is now considered one of the undisputed leaders in its field.
Among the extensive product range of the Swedish giant, there are also smoke exhaust systems. Roof fans Systemair are represented by a whole range of different devices, differing both in power and design and features of use.
Such a variety allows everyone to choose the fan they need, based on their needs and wishes, while being confident in the quality of the purchased product, backed up by the name of a well-known European brand.
Fan life
The effective service life of a smoke extraction fan plays an important role in the decision to install it. It is unlikely that anyone will like it if, after putting some effort into finding and installing a roof fan, after a while they will again have to repeat all the manipulations from the very beginning.
Of course, sooner or later any system will start to fail and fail, but it is this period of time between the initial installation and the onset of problems that can be considered decisive in the reliability of the entire system.
Attention! After a direct activation of the active smoke exhaust system (for example, in the event of a fire), the fan is no longer suitable for further use and must be replaced, regardless of the service life.
fault tolerance
In addition, the fault tolerance of a particular smoke exhaust system, as well as timely work performed, such as roof chimney insulation. This characteristic is closely related to the previous two parameters, but in itself means the possibility of efficient operation of the device without outside interference.
These may be:
- unscheduled equipment repairs;
- additional settings and calibrations;
- frequent cleaning of system parts from sediment.
The ability to work without such emergency measures is called fault tolerance. Domestic rooftop fans are famous for their good fault tolerance.
Installation and installation of fans
Before installing the selected device on the roof, several important factors should be considered, including:
- dimensions and type of the selected fan;
- roof structure and its roofing material;
- roof slope.
Dimensions roof fan determine, first of all, the type of its fastening. Mounting a large industrial fan securely on a roof requires much more effort than mounting a small household smoke extractor.
Depending on the roofing material used, one of two main types of fan mounting can be used:
- Installation on a hard roof. In this case, the fan is simply attached to the continuation of the ventilation shafts, which are made of solid materials - brick and concrete. Thus, the greatest adhesion and reliability of the assembled structure is achieved.
- Installation on a soft roof is much more complex and depends on many conditions.Therefore, specific solutions for docking and fixing the fan to the respective systems must be applied depending on the situation. There are no clear rules here, however, the installation of roof fans in any case must be reliable and thoughtful.
Although the angle of inclination is not a critical factor when installing a fan, it significantly affects the features of its placement on the surface.
The existing ventilation system must be adequately fixed to avoid various deformations due to instability due to the complex structure of the roof.
Finally
We hope that all the above tips and recommendations on the selection and installation of smoke exhaust roof fans will help you navigate the variety of modern ventilation systems, determine the devices you need, and also help with their installation on site.
Understanding the key features and functionality of various smoke extraction devices will help you make an informed and thoughtful decision about the appropriateness of acquiring a particular roof fan, understand the intricacies of its installation and use.
All this will extend the effective service life of ventilation systems for many years, while you do not need to seek help from specialists - after all, having such knowledge, you can cope with almost any task on your own.
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