Mauricio Featherman

For the device these zones are used, as a rule, materials similar to roof cladding. For example, on asphalt roofing are used Special bituminous materials with high resistance to static and dynamic breakdown. For the membrane also have a special PVC material for the exploited zones. Unlimited use of (Foot terrace). There are two basic designs, which are now used in Europe – a classical system of interlocking tiles laid on a bed of crushed rock and support system (regulated and unregulated). Roofs for the motion This type of transport operated roofs are divided into 4 classes: for vehicles up to 2.5 tons, for vehicles up to 30 tons (usually need to check fire-fighting equipment), rail transport (railway stations with multilevel ways); helipads. Most popular today in Europe, construction – with the castle tile.

Here the system is simple: support structure, slope, waterproofing, thermal insulation (usually extruded polystyrene), separation geotextiles, protective compacted crushed stone and tile. It should be noted that such a device for the roof to use specially treated fungitsilami rubble. Otherwise, it will sprout seeds. "Green roofs" "green roof" – a decorative lawn, flower garden or park, divided into the roof of the building. In addition, it is also an excellent technical solution to solve a number of problems associated with human habitation in the city. The important role played by a live carpet and roof construction – as an insulator and fire safety. "Green roofs" can be both flat and sloping.

There are examples of such roofs with slopes up to 60 . The design can be both classical and inverted. However, classical rarely used, as they inevitably raises the issue of protecting the waterproofing from mechanical damage in the garden works. In the inversion of "green roofs" the role of protector is perfect waterproofing insulation performs. In addition, "green roofs" are divided into extensive and intensive. On extensive vegetative layer thickness is less than 50 mm (turf). On extensive – more than 50 mm. It is already possible to grow flowers, shrubs and trees. Today, "green roofs" – is still a wonder to our country. But, for example, in Paris they already occupy about 15% of the total area. So, apparently, for their future.

To supply electricity to the appliance in the home, outbuildings, extensions are used. They have a lot of features, each of which affects the normal operation of electrical appliances for safety handling. In various specialty stores, where you can buy a power tool, you will find a wide selection of strips, made of different materials, designed for a different load, capable of providing two to tens of users. What are the main criteria for selecting an extension cord? Material from which made cable Often, the cables used copper and aluminum conductors. Copper – more flexible, can be freely changed the direction of cable management in places where it is needed, and aluminum, single core, so used to laying a permanent provodki.Kolichestvo consumers should clearly understand what will be the load extension to pick up the correct cable size and permissible to calculate the current that it is also important to be able to vyderzhivat.Zazemlitel presence of ground contact, the normal connector between the housing and cable, which to avoid short circuit of a risk of electric shock and other traumatic situations.

The presence of earthing allow you to connect without the use of hazardous evrorozetki adapters are banned in many countries because of the high and the thickness of the cable pozharoopasnosti.Dlina to avoid serious losses, it is necessary to select the cable length of 5-7 meters high, which is the best indicator. At the same time the load does not exceed 3 kW, otherwise fire can occur. The thickness of the cable must be at least 5 mm. This will allow you to connect many devices to it without losing tension. A good cable should be protected from deformation and kinks that would eliminate the possibility of short circuits. Of course, if you must pass the current long-distance, you need a power strip with great length and area secheniya.Kolichestvo layers of insulation in the cable cables can be single and double layer. Single-layer wire with insulation suitable for routine use in areas with low temperatures, high humidity.

Double-layer cable can be used in areas with high humidity, high and low temperature, underground, outdoors, etc.. d.Kolichestvo outlets should take into account the number of outlets, which is necessary to connect appliances. Often the best option when choosing an extension cord, a body with 3-7 sockets. The choice depends only on need, ie more outlets will be in the housing extension, the more devices you will be able to it podklyuchit.Nalichie breaker This feature is especially important for networks with voltage drops. Also, a circuit breaker prevents overloads, when one strip simultaneously connected to several powerful priborov.Dopolnitelnoe equipment is often equipped with an indicator lamp extension that allows you to see what state the device – on or vyklyuchennom.Pravila security Do not try to change or improve the designs extender. Such intervention can only lead to negative consequences – a violation of the integrity of the wiring, spontaneous combustion, electric shock. The choice of extension is mainly dependent on load and conditions under which it will operate. All these parameters are easily determined visually, so you can easily find a suitable extension of e-shop tools.