Modern roofing are not only beautiful, but the quality coating which perfectly protect the house from the street noise, air mass flow, and ingress of moisture. However, the formation of ice due to snowfall can greatly harm any roof construction materials. That is why care should be taken of its special heating system.
Content
The negative effects of icing:
- roof collapse may occur due to too much snow load;
- it can be irreparably damaged engineering systems and roofing;
- gathering icicles and snow could injure passers-by;
- melt water may accumulate in the drain pipes and clog them during freezing.
The above-mentioned phenomenon of today can be solved in several ways:
1. With the manual snow removal.
2. Use the special system of heating of the roof.
Regarding the first option, the execution of such works often deal with professional climbers. If we try to clean the roof with his hands, the mean inexperience or negligence can seriously hurt yourself.
More efficient in this case, the cable heating of the roof is very simple. It consists of:
- a certain control system;
- information and distribution network;
- heating part.
This system is launched using the operator, after which it can function for a long time in automatic mode, focusing exclusively on sensor indicators.
However, it should be noted that the use of this heating system does not exceed the need to lay on the roof of high-quality waterproofing between the base and external coating.
Advantages of using a special roof heating system
- the automatic system provides ease of control;
- possible roof leaks are neutralized;
- create more gentle conditions for the roof operation;
- the formation of additional loads on roofing building materials and supporting structures;
- there is no need for manual cleaning of the roof;
- it is the most rational way to deal with Founding.
Types of electrical cables to create heating systems
All cables used for the roof heating system differ by:
- the possibility of changing the set length;
- recommended use sites;
- specifications.
Classification of Cables for Heating Roofs:
1. Armored cable.
This type of heating cable is very similar to resistive. The difference consists in mechanical increased strength and a higher heating temperature. These characteristics are exactly
Allow it to be used on the roof relating to the category of exploited, as well as lay on the concrete directly. At the same time, the design of the heating armored cable provides a small adjustment of its length, namely the clutch from 1-2 m.
2. Resistive cable.
This material has a very low cost, a certain length of the section and a capacity of 5-30 W / m. Thanks to such uncomplying indicators, it is more often used to create roof heating with their own hands.
Disadvantages:
- it has equal to the entire length of heat transfer, which is sometimes not enough to combat certain areas of land;
- fixed length delivers difficulties when installing;
- due to the fact that the power of the cable in some places is not enough, there is an excessive cost of electricity.
3. Zonal cable.
This type of cable is used mainly for drainage pipes and gutters. As be redeportal, it has a certain power, but unlike it can be driven under the desired size directly on the construction site. The most rational is its use in systems that operate in conditions requiring the complete absence of land.
4. Self-adjustable cable.
The price of such a heating cable is significantly higher than previous species, but its choice will cost your tools.
Advantages;
- it has the ability to perfectly adapt to environmental conditions;
- it is possible to produce it in the place of the work;
- can be mounted by segments of arbitrary length;
- thanks to its use, there is a significant electricity savings.
The most common modifications are those that are created on the basis of polyolefin and fluoroplast. The latter are characterized by good power, increased resistance to many aggressive environments, and the first are used to heat the roof solely on the basis of the manufacturer's recommendations.
System of roofs
In addition to the heating cable, the following elements necessarily include:
- roofing funnel having electrical heating;
- snowstand elements that protect the cable from damage;
- immediately the heating part, which comes in a set with retainers;
- control cabinet;
- distribution circuit breeding;
- various sensors controlling the temperature;
- informational cables;
- strength cables;
- protective shutdown equipment, de-energizing lines in disruption of insulation quality;
- temperature regulators that are specifically adapted to the installation of the heating cable on the pitched roofs.
How to make a warm roof
Installation of heating cable
To fix the heating cable, various types of fixing sets are usually used, which consist of cables, tensions, clamps and perforated metal tapes.
Specially mounted cable sections for the heating system of the roofs and wires from control sensors are reduced to the mounting box, which is usually located in the attic. Then the power cable from the mounting summary box is carried out on the heating system control cabinet.
As for large objects, the control and control of the heating process is carried out automatically with the use of a complex thermostat equipped with temperature and moisture control sensors. At the same time, all elements of the roof in the areas of placement of the heating cables remain free from the land. In small objects, it is possible to enable the system manually using a timer on duty or a conventional thermostat.
Principle of operation of heating cable
Since the heating cable is connected and fixed to power equipment, it should be provided with switches and thermostat. The main goal of the regulatory system is the liberation of the flow of the flow of water and maintain it to the lower cutting of the drain pipe.
The system that contributes to the snowming must function as long as the risk of icicles.
The process of melting snow on the roof occurs depending on:
- wind power;
- air humidity;
- ambient temperature;
- the amount of heat released;
- roof designs, etc.
Sometimes there are such situations when snow melts on the roof, but I do not arise to the icicles. In this case, it becomes necessary to work the mode of operation of the control system, which, with the help of special temperature and humidity sensors, begins to track the entire situation and includes heating to certain periods of time, without spending the electrical energy in vain.
Recommendations
If the warmer cable is mounted on the roof having a soft coating, then its maximum power is more often limited to 20 W / m. For high-quality fixation of the material during the styling process, an installation tape should be used in the mounting step 3 cm. It is also possible to fix the lines on the grid using the clamps.
Self-regulating heating video cable: