The process of transferring energy from the heated partbody to less heated is called thermal conductivity. The numerical value of this process reflects the thermal conductivity of the material. This concept is very important in the construction and repair of buildings. Correctly selected materials allow creating a favorable microclimate in the room and saving a significant amount of heating.
Thermal conductivity is the process of heat exchangeenergy, which occurs due to the collision of the smallest particles of the body. And this process will not stop until the moment of equilibrium of temperatures comes. This takes a certain amount of time. The more time spent on heat exchange, the lower the thermal conductivity index.
This indicator is expressed as the coefficientthermal conductivity of materials. The table contains already measured values for most materials. The calculation is based on the amount of thermal energy that has passed through a given surface area of the material. The larger the calculated value, the faster the object will give all its heat.
The coefficient of thermal conductivity of a material depends on several factors:
Thermal conductivity is taken into account at the stagedesigning a building. This takes into account the ability of materials to retain heat. Due to their correct selection of residents inside the premises will always be comfortable. During operation, money will be saved for heating.
Warming at the design stage isoptimal, but not the only solution. It is not difficult to insulate an already finished building by carrying out internal or external works. The thickness of the insulation layer will depend on the materials selected. Some of them (for example, wood, foam concrete) can in some cases be used without an additional layer of thermal insulation. The main thing is that their thickness exceeds 50 centimeters.
Particular attention should be given to the insulation of the roof, window and door openings, floor. Through these elements, the most heat is lost. Visually, you can see this in the photo at the beginning of the article.
For the construction of buildings use materials with a low coefficient of thermal conductivity. The most popular are:
Another popular building material is brick. Depending on the composition, he has the following indicators:
The coefficient of thermal conductivity of the material makes it possible to use the latter for the construction of garages, sheds, summer houses, baths and other structures. This group includes:
The coefficient of thermal conductivity of heat-insulating materials, the most popular in our time:
For convenience of operation the thermal conductivity coefficientIt is customary to add a material to the table. In it, in addition to the coefficient itself, such indicators as the degree of humidity, density, and others can be reflected. Materials with a high coefficient of thermal conductivity are combined in the table with the indices of low thermal conductivity. A sample of this table is shown below:
Using the coefficient of thermal conductivitymaterial will allow to build the desired construction. The main thing is to choose a product that meets all the necessary requirements. Then the building will be comfortable for living; it will retain a favorable microclimate.
Правильно подобранный изоляционный материал will reduce heat losses, for which reason it will no longer be necessary to "heat the street". Due to this, the financial costs for heating will be significantly reduced. Such savings will soon return all the money that will be expended to purchase a heat insulator.