The chart above shows how the temperature is distributed across the bilayer wall outlets. By analyz

Starting with the construction of investors often face a choice: what material the walls rise building? Although the material is not determined in large part about the cost of the entire project, is an important element of the building carrying the load and which forms the cover of the weather bbq chicken nachos recipe conditions. Investors can choose from a number of materials available on the market, of which the most common are: concrete, ceramics porotyzowana and silicate blocks. After selecting the material, building your house have to decide whether to erect exterior walls as a one-, two- or three-layer can? In order to simplify the possible decision in these matters, will now be described several embodiments of wall partitions, as well as allowing calculations to figure out the physics of the wall, depending on its design and the cost of its implementation.
In most currently two materials are suitable for the construction of external walls monolayer. These include: ceramics porotyzowana and aerated concrete. PN-EN ISO 6946: 1999 heat transfer coefficient of the outer baffle uniform can not be larger than 0.5 [W / m * K]. Such coefficient get erecting a wall of thick ceramic porotyzowanej. 38cm - 0.41 [W / m * K], and in the case of cellular concrete thickness. 36 cm - 0,27-0,37 [W / m * K] depending on the class. The following table shows precisely U-values depending on the material used and the thickness of the material and the price of 1m wall.
As you can see in the table above the required behavior of U using homogeneous partitions requires a relatively high financial effort wall materials. Would seem that this solution has its advantages: speed and ease of erection of the wall, lower labor costs. Is that really so? For comparison, consider bbq chicken nachos recipe would be the advantages and disadvantages of both solutions and how to represent the cost of execution of the outer wall of the bilayer.
In the case of building walls we deal with two layer carrier layer the barrier and the heat insulating layer. In this case, the minimum value of heat transfer coefficient U we need to get is 0.3 [W / m * K]. The carrier layer is considerably thinner than in the case of single-and depending on the material used is from 18 to 25 cm. A layer of polystyrene insulation is the most EPS70 (formerly FS15) or mineral wool. How are as U-values depending on what materials we use are shown in Table 2.
(* The calculations shown in the table to calculate the price of 1m wall included for polystyrene insulation: bbq chicken nachos recipe EPS70 polystyrene, bbq chicken nachos recipe Styrofoam glue and concealed grid, scrim, plugs for fixing polystyrene and acrylic plaster in color, in the case of mineral wool insulation: wool façade, bbq chicken nachos recipe adhesive wool and concealed grid, scrim and painted with mineral plaster facade.)
As shown in Table Applying variant bilayer wall can be less than the total thickness of the baffle for best ciepłochłonność compared with monolayer. To have a full comparison of the cost of the walls in the variants should take into account the value of labor in both cases.
The fact that the wall layer with the same coefficient U is cheaper than the single layer results in a simple way from the analysis of the destination building materials. The task of the structural layer in the outer wall or curtain carrier is passing from the ceiling and the roof, protection from weather bbq chicken nachos recipe conditions: wind, rain and possibly dźwiękochronność. This layer, which will be shown hereinafter, of no particular importance in the analysis ciepłochłonności division. About this wall is determined mainly by the properties of the insulating material. This material is most often polystyrene or mineral wool. This is why investors are opting bbq chicken nachos recipe for the wall material bbq chicken nachos recipe should not be decided on the basis of his ciepłochłonność. In order to find a compromise between bbq chicken nachos recipe good properties ciepłochronnymi walls and its price should therefore bbq chicken nachos recipe take the minimum required thickness of the supporting wall and then apply warming bbq chicken nachos recipe insulation material bbq chicken nachos recipe in the necessary quantity. This was partly done in Table 2. However, for the other climate zones (I made the calculations for the climate zone) and for special cases values bbq chicken nachos recipe may differ from the values in the table.
The chart above shows how the temperature is distributed across the bilayer wall outlets. By analyzing the distribution can be calculated in a simple way, the impact on the building's thermal protection materials are different. It turns out that the baffle carrier layer is only depending on the material used, from 14 to 25% of ciepłochłonności septum, bbq chicken nachos recipe the rest of the insulation material. Going forward, bbq chicken nachos recipe we can calculate what the difference is the cost of security 1 watt, depending on the materials used in the construction. To