Perhaps, the storm of any person, causes anxiety. And rightly so, because lightning is fraught with great danger, it can affect not only trees but also buildings and people. It is because of being struck by lightning there have been many fires, and even today, due to discharges in the building, the closure may occur electrical networks. Surprising, because today invented many tools against lightning.
Once our ancestors learned to protect yourself from lightning strikes using lightning rods. Modern architecture neglects the element of protection. It is required for all types of roofs, however, some believe that metal roofs don't need it. Before installing such devices need to understand the principle of operation of lightning protection, as well as to decide whether this design is for you.
The Installation of lightning protection, as a rule, is carried out on the roofing material or the wooden crate, however, this approach cannot be considered safe. It has also happened that the lightning got on the individual elements of the roof, causing melting and a fire that led to the ignition of the lining material. In addition, if lightning falls on metal deck and heat them to high temperature, the wooden rafters can catch fire.
The Installation of lightning protection desired for the metal roof, so as to protect from fire, it can only non-combustible materials, this also applies to the case when all the metal elements are safely connected, and electrical connection between them. A great addition to this will be the grounded steel cover.
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Lightning protection is to protect the building against fire and maintain electrical equipment. You can split this kind of protection on the external and internal of the first precludes a direct hit by lightning, and the interior ensures the safety of the electrical network at the races, an electric current.
If we are talking about an internal system, it is applied bit of devices that limit the voltage. The easiest and most affordable means of internal protection is the disconnection of all electrical appliances. This is especially true if the lightning causes the thunder in less than 8 seconds.
The Installation of lightning protection external purpose provides for the installation of grounding, arrestors and lightning. The function of this system is very simple: the lightning will take effect from the roof, and after it will pass in the current collector, wherein zazemlenie will neutralize the energy in the soil.
It is Noteworthy that such a system can be made by yourself and in a very short time. To do this, use the grounding, arrestors and lightning. You will need metal brackets, welding machine and clamps, the latter of which will connect the grids.
If you have decided that the installation of lightning protection will be implemented on the metal roof, then set it to the highest possible place. If the building has a fairly complex structure, it is recommended to use the method of installing multiple lightning. On design features they can be in the form of a grid; wire rope installed along the ridge; and a metal pin.
The Installation of lightning protection of buildings with metal roofing is usually done by setting the pin, the length of which can vary from 0.2 to 1.5 m. It shall be vertical and at the highest point of the house. The pin can be made of metal not subject to oxidation under the influence of negative environmental factors. It can be copper, aluminum, galvanized steel or aluminum. The upper part must have a cross-sectional area that is greater than 100 mm2, while the diameter should be equal to 12 mm.
If you decide to use a hollow tube, its upper end sealed. You can quite independently carry out installation, roofing, lightning protection which was conducted without assistance, and will effectively avert the danger from the house. However, it is important to remember that to isolate and paint a lightning arrester is impossible. If the roof is equipped with a television mast that can be made of metal, the lightning could be drawn from it. It is permissible to use a metal weather vane. The main condition in this case is ground. In some cases, lightning is the chimney, but this can't be correct since fixed the metal pin is able to create wind loads damaging a pipe.
Alternatively, the discharger can use a high tree, branches that grow above the roof. It should be near the house. In this case, the lightning should be fixed on the top of the tree so that the item towered over the crown of half a meter and more. Aspractice shows, a lightning rod can protect from lightning area, which falls in the imaginary cone. Its vertices are located at the end of the lightning, and the side part at an angle of 45°.
The circle is a secure area that allows to make a conclusion: the higher the lightning protection device, the wider the safe area. In other words, the height of the receiver lightning should be equal to two sizes of the safe zone. It is important to remember that under the protective cone must get not only a house, but all outhouses.
The Installation of lightning protection for soft roof can be done by different techniques. The first will involve installation of a metal pin, the second – a metallic cable, while the third – molniezaschita mesh. In the first case to establish the item is even on the ridge of the roof or mast antenna. A metal cable stretched between two supports, the height of which can vary from 1 to 2 m. Positioning of these components is needed along the ridge of the roof.
To ensure the reliability of the design, it is possible to use metal supports, but they are isolated from the cable. This method is effective in the slate and wooden roofs. You can be self-performed installation of earthing, lightning protection, for example, can be represented and the mesh. It is fixed on the ridge of the roof, and it should move across the surface of the roof grounded electrodes, this option is ideal to cover the tile. It is important to remember that the lightning needs to be paired with the available metal objects on the roof, including stairs, chutes, and fans.
The Installation of lightning protection on the roof with a soft roof can be installed in one of two ways: the first involves the use of a tension system, and the second – remote clips. The tensioning system is using hard anchors at the base and between them is stretched a rope. This system is equipped with tension clamps and the distance between anchors should be 20 to 30 m. If we are talking about flat roof, the lightning can be supplemented with remote elements, such as plastic brackets. If you have to work with flat roofs and walls that you can apply samozabvenno and corner clamps, which are strengthened with dowels. On steep roofs, which are covered with calamoceratidae, it will be harder with the clips. In this case, the applied ridged, their brand, which is suitable in size and shape to such ukryvnogo material.
You can not make installation of lightning protection, the price of such work from the experts about 6,000 rubles. But in this case there is a guarantee of quality.
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