Anyone who builds with bricks (clay blocks), provides comfort and reduces heating costs for life. Ninety percent of our life takes place indoors. Earth, water, air and fire are the four elements which are involved in the natural process of creating bricks.

They are characterized by good insolation properties. For lower heating costs and a healthy living environment, your home needs these good insolation properties. This is determined by the insolation and heat the accumulating capacity of the building. For thermal insolation properties of ceramic blocks the porosity plays a big role. That capacity is achieved by built in raw combustible materials which are included in the process of firing. This method creates micro pores that act as a natural isolator.Керамичните блокове се характеризират с нисък коефициент на топлопроводимост, голяма способност за акумулиране на топлина и висока топлоустойчивост.

Construction ceramics belongs to the group of non-combustible materials. The bricks do not burn and do not produce harmful vapors. This reduces the likelihood of damage to the product or the structure in which they are embedded. The fire resistance is a feature of the construction elements and is characterized by the time that the item continues to perform good while it’s exposed to fire and gases. The building parts which are constructed from ceramic elements can be high fire resistant. The bricks can be used to build ceramic sleeve of steel structures to improve their fire resistance as well as for the construction of a fire barrier.

The sound insolation is needed to protect you from outdoor and indoor noises. Ceramic materials and products are excellent in noise insulation and have a decisive influence. The walls which have built from ceramic materials are superior to those which are made ​​from other materials.

The properties of waterproof material are interest in terms of protecting the structural elements because of the damage caused by moisture: damage to plaster and coatings, deterioration in the characteristics of thermal insulation and more. The diffusion of water vapor in the hollow bricks and blocks is very small, so even a large brick wall shall not prevent the free passage of steam. The studies showed that ceramic blocks have practically lowest moisture equilibrium  in building materials. Furthermore, the capillary structure of ceramics provides quick access to the moisture equilibrium.

The ceramics bricks are characterized by a constancy of  content, since all processes are structurally completed after the firing process. Therefore after temperature or humidity changes the bricks practically do not change their size and shape.

The ceramic bricks are characterized by extremely high durability. A testament of this are the many preserved ancient buildings in the world and in our country. Durability of ceramics is determined by the fact that it does not rot, does not oxidize, it doesn’t get old and does not decompose, it is not likely to be attacked by microorganisms and has high chemical resistance.

The difference between ceramic bricks with horizontal cavities and those with vertical are expressed in many properties of the masonry. We will focus mainly on two – carrying capacity and thermal conductivity of the wall.

Blocks with vertical cavities have a much higher compressive strength and in some cases they may be used for load-bearing walls, as opposed to the blocks containing horizontal chambers, to which it is not permitted according current regulations.

When building walls with ceramic blocks which have horizontal cavities the placement of solution in the vertical cavity is very difficult.

This violates the density of the wall and its thermal insolation capacity, and allows air circulation as well as the entire length of the wall (in practice the wall is composed of horizontal tubes) and in the worst case – from the vertical cavity of the plaster to the mortar or from the plaster to the thermal insulation. In blocks with vertical cavity system “tongue and groove” these drawbacks are avoided”Tongue and groove” is a system linking the blocks without having the need to pour  solution into the vertical cavity. This relationship is similar to the traditional connection “socket and spigot joint” used in flooring. It allows to increase the speed and accuracy in the execution of the masonry and reduces the amount of used solution. When pouring the solution across the width of the horizontal cavity the air closes itself in the block and increases the thermal insulation capacity. Ceramic blocks with thick outer walls (10 mm or more) provide sufficient strength for the sustainable fixing of dowels. Furthermore, the multi-chamber ceramic blocks give the opportunity for the dowel to pass through minimum two chambers, making more secure fit.

When you build building you must choose those ceramic blocks which have the best quality this is due to the fact that buildings are built for generations. Another major factor is the final price of square meter of built area. Buildings with large format bricks ( 250x380x238 ; 375x250x238 etc.) you saved at almost every stage of the construction. At the first (designing the building) stage you save from the lower weight, so that the supporting frame is lighter and therefore less reinforcement is needed. At the second stage (building) you save on one hand from the materials on another hand you save from the labor costs.

You save from the material, because you need less solution and less labor because these ceramic blocks are really easy and fast for building. The bigger ceramic blocks (250х380х238) is equal to three normal bricks (250x250x120).

Ordinance № 7 on heat and energy savings in buildings regulate the requirements for the design of new buildings (and reconstruction of existing). To reduce energy costs and change the criteria that must comply with the building structures. As well as thermal insulation capacity of external walls. External walls must have a coefficient of heat transfer (U) is 0,35 W / (m2K) (after the recent amendments to Ordinance № 7 from February 2010).

Our new block (250x380x238) covers these new higher requirements and there is no need to use extra insulation on the wall. The advantages of our external brick wall (38 cm) are: intact permeability of the wall, high heat storage capacity that provides a pleasant micro climate in the rooms, hard wall and the possibility of hanging heavier finishes or equipment with low maintenance costs, the decision gives high investment value over the time.

For all other blocks (25 cm thick as 250x250x120) you need additional thermal insulation system. In the structure with additional thermal insulation the brick system shall perform the duties associated with building static , sound insulation and heat accumulation . Additional insulation improves the thermal insulation of the external wall . When choosing insulation system the thickness necessary requirements for vapor permeability and the thermal conductivity must be considered .

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