Facade Thermal Insulation Composite Systems (SFTK) - this is how the “wet facade” systems are called in the professional language of builders, which have long gained popularity both in the construction of industrial and social facilities, and in private housing construction. Thanks to the heat-insulating layer of stone wool, SFTK TN-FASAD Profi has a number of tangible advantages over other facade insulation systems. This is fire safety, high thermal insulation capacity, vapor permeability, long-term maintenance-free operation, as well as the ability to embody bold design ideas that emphasize the uniqueness of each mounted facade.
Single window technology
We are all accustomed to the services provided by “one window” technology for a long time, when a number of interrelated issues can be solved in one place, it is convenient and saves a lot of time. TECHNONICOL is also introducing this technology in the field of facade thermal insulation systems. "TN-FASAD Profi is a solution in which all the facade components are assembled into a single complex, the entrance control of each element is made, tests for their compatibility and the operation of the system as a whole are carried out, which allows us to speak with confidence about the reliability of the proposed solution," explains Konstantin Kozetov.
The durability of plaster facade systems, according to him, depends on a combination of several successive factors: the quality of raw materials, literacy of installation and the correctness of further operation and repair.
“In our case, the“one window”technology means that all elements of the facade system are supplied by one company, which is responsible for their work as a whole, and not separately. Those. there are no risks that some of the elements are selected incorrectly and this may affect the operation of the system as a whole, in the case of the SFTK TN-FASAD Profi, in contrast to the situation when a consumer who does not have special education tries to independently "blind" the facade system “From what is”, and often from “what is cheaper”. Incorrectly selected system components can lead to defects in the form of delamination and cracking, as well as to extremely serious problems in the form of partial or complete façade collapses,”the expert warns.
"Small spool, but expensive", or The use of primers when insulating facades from porous elements (foam and aerated concrete blocks)
TN-FASAD Profi is a system consisting of a certain set of components that are mounted sequentially, in compliance with technological terms and installation rules.
As an example - facade work in an individual house with walls made of foam or aerated concrete blocks, which are the most common material for private development in Russia.
In most cases, the material of the walls is porous and has a high absorbency, which means that part of the water from the solution of the adhesive layer, which it needs for curing, is simply absorbed by the base and the remaining water in the solution may not be enough to set the required strength, i.e. the thermal insulation layer can have insufficient adhesion to the wall, which in turn can lead to fatal consequences. To prevent this from happening, it is necessary to limit the absorbency of the substrate and to remove dust from it. For this, special compounds are used - primers, which are applied to the entire surface of the facade before gluing the heat-insulating layer and before installing the decorative layer. TECHNONICOL 010 primer is one of the key elements of the system and cannot be ignored.
Advantages of stone wool for a private house
The next stage of installation
TN-FASAD Profi - installation of a heat-insulating layer of mineral wool TECHNOFAS COTTAGE. It is a key element of the system that guarantees fire safety and a comfortable indoor climate.
In a private courtyard, fires or barbecues are often kindled, and if the facade is made of combustible material, the risk of a fire in such conditions increases. Mineral wool slabs TECHNOFAS COTTAGE do not burn and can withstand temperatures up to 1000 degrees, they completely eliminate the risk of fire in the facade.
The advantages of TECHNOFAS COTTAGE also include high heat-insulating properties, which allow you to save on heating in winter and air conditioning in summer in the long term. Mineral wool is safe for human and domestic animal health, which is confirmed by the sanitary and epidemiological conclusions of Rospotrebnadzor.
Mineral wool slabs are vapor-permeable, which is of great importance for maintaining a comfortable indoor microclimate.
High humidity in the structure of walls can lead to the formation of cracks and their subsequent destruction, and high humidity inside the room contributes to the formation of mold and the development of respiratory diseases.
Part of the excess moisture is removed from the premises during ventilation. But along with this, part of the moisture is removed through the walls due to the vapor permeability of the structure with mineral wool. This is due to the difference in partial pressures inside and outside the room.
Breakout efforts
Fastening of thermal insulation must be carried out using telescopic facade dowels with a spacer element, which must have a pullout force from the wall of at least 2000N. Telescopic fasteners consist of two main parts - a plastic dowel with a spacer zone and a metal nail, one side of which has a plastic thermal head, which must be strong enough to withstand shock loads during the installation of the dowel, and also be of sufficient size to ensure minimal heat loss that arise due to metal elements in its structure. As in the case of a primer, one should not neglect the importance of this element and use dubious analogs that do not provide reliable fastening, since the consequences can be the most unpleasant - up to the collapse of the facade.
Base strength
When the mineral wool slabs are installed and secured with dowels, the base reinforcement layer is installed. In this process, cement-based mixtures with high plasticity are used -
TECHNONICOL 210. They contain special modifiers that allow you to apply the mixture in a thin layer and prevent it from hardening quickly, because, as you already understood from the name of this layer, after it is applied to the surface of the mineral wool, it is reinforced, they do it with the help of alkali-resistant facade fiberglass mesh. The need to use alkali-resistant grids is determined by the alkaline environment of any cement mortars, and, having no resistance to this environment, other grids will simply dissolve. Facade fiberglass meshes have another important feature - they are strong when stretched in all directions: both along the warp and along the weft. The strength of the facade meshes is regulated by GOST and must be at least 2000N for ordinary facade meshes and 3600N for reinforced, anti-vandal. Why are there so many, you ask? The fact is that during operation, the facade is constantly exposed to wind load, temperature, etc., and the directions of these loads can change within one day from tensile to compressive. If weaker mesh is used, it can lead to cracking, partial or complete collapse of the base and decorative layers of the facade. Therefore, in SFTC TN-FASAD Profi only TECHNONICOL 2000 and TECHNONICOL 3600 grids are used, which meet all the requirements of GOST.
Le final '
After the base reinforcing layer gains the necessary strength, and this happens on the fourth day, the entire surface of the facade is ground again and then the decorative layer is applied. The decorative layer is the "face" of your facade. It can be mineral based on cement or polymer, the main thing is that it is durable and aesthetically attractive.
And this can be achieved either by using decorative mineral plasters
TECHNONICOL 301 and 302, with their subsequent staining with TECHNONICOL 920 silicone facade paints, or using silicone polymer plaster compositions, painted in the mass in the desired shade - TECHNONICOL 401 and 402. I would especially like to note the need to use silicone paints or silicone polymer plasters, since they provide vapor permeability of the decorative layer. The use of other compounds can create a barrier to the escape of steam from the wall structure and lead to unpleasant consequences associated with an excess of moisture in the structure. The facade system TN-FASAD Profi from TECHNONICOL quickly gained popularity and has positively proved itself at many facilities. The consumer does not spend a lot of time on the selection of components. He can contact the technical specialists of the Corporation, and they will consult him and make all the necessary calculations. If you need recommendations for the installation of a system, the Quality Service will solve this problem as well. And also there is no need to wait until each of the components of the system is delivered separately - now a complete set of materials will be delivered to the site in one machine from one supplier, and downtime due to the lack of something will be completely eliminated. “It is these principles of work that allow us to make reliable construction systems available to everyone,” sums up Konstantin Kozetov.
Material provided by TECHNONICOL
