Flat Roof Constructions

The roof – the largest source of heat loss of the building, so how well insulated roof, depends largely on energy-saving features of the building. Application of modern thermal insulation – slabs extruded polystyrene Primaplex – can effectively solve problems of thermal insulation of flat roofs. As a result, significantly reduces the cost of heating and cooling buildings. The main advantages of plates Primaplex, which are often decisive in the choice of thermal insulation in flat roof constructions: * Low thermal conductivity. The structure of the plates Primaplex, is a system of tiny isolated cell filled with Fixed gas defines a very low thermal conductivity material; * Durability. High strength plates Primaplex compression allows you to use them not only in classical applications with moderate requirements strength, but also in cases of extreme conditions * The minimum water absorption. The main factor influencing long-term thermal insulation characteristics of insulation, is its resistance to penetration water or moisture. Moisture may be in contact with insulation not only during construction but also during the entire period of the building.

Moisture absorbed by the insulation material, greatly reduces its thermal resistance. The system of closed cells and the lack of cavities makes plates Primaplex more resistant to water penetration and moisture than any other type of insulation * Low weight. Because the cells that constitute the core of plates Primaplex, filled with light gas (air), the material has a low density (30-35 kg/m3), which makes it very easy to use. Weight standard package does not exceed 10 kg, so the material can be easily moved around the construction site, raise the roof. Primaplex easily cut with a knife or a saw with fine teeth; * Durability. The ability of insulation boards Primaplex perform their functions during the lifetime of the building (30-50 years), the stability of its characteristics such as thermal conductivity, compressive strength, low water absorption, and lack of corrosion and resistance to multiple cycles of freezing and thawing makes them durable.

Ceiling

Sharpening tile is on a special machine and hydraulic. The frequency of disc rotation during grinding of stone slabs should be high enough to avoid chipping the glaze on the tile. When docking tiles and acrylic baths (abutting the side of acrylic bathtubs and walls, tiled) there is a serious problem in filling the tub with water is deformed, its edges away from the walls, respectively, when you wash, the water falling on the walls, dripping on the floor. Conventional methods of sealing this seam is not help because almost any material, glued to the acrylic does not stay on deformation. To avoid this, we devised a very efficient way. On the wall where the tub is installed, tile is laid to the floor, and to the edge bath. Further, under the last row of tiles laid T-shaped plastic profile with a fairly hard edge, the second plane of this profile, pre-lubricate with silicone, lies with the board of the bath. Then bath jack so that the board close to the edge of the tile rested.

Thus, the profile is trapped between the wall tiles and bath board. When filling it with water, even if deformation occurs, it does not affect the junction leakage and the side walls of the bath. Tiles laid on a special tile adhesive, with proper installation and smooth walls and floors of adhesive consumption is around 25 kg to 4-5 m Grout joints mezhplitochnyh by a special grout. The ceilings in the modern interior is almost an integral part. But not always in the draft is laid ceiling just for aesthetic reasons. Very often vertical drop from the ceiling about zero up to large enough quantities, and therefore mounting the ceiling is made only for practical reasons. The same applies to old houses, in which 'Native' ceiling is a poor foundation for plastering his (wooden floors, old w / w floors with a large depreciation, etc.).

Acrylic Material

Water-dispersed acrylic material – the invention sufficiently known. The first related to the development of twentieth and thirties, but then their development has prevented World War II. Triumphal procession waterborne acrylic materials began immediately after the war, and it was understandable, because many had to be restored and for limited funds. Unfortunately, the "iron curtain" was and is an insurmountable obstacle. Soviet industry has not gone further than PVA glue, bustilat and primitive water-dispersion paints based on PVA, suitable only for malootvetstvennyh works. As a result, the Soviet Union left behind in these matters, forcing its citizens paint everything banal oil paint, putty and glue the oil-filler, while in Europe all this has long been a subject of folk tales. Because of the backlog in the production of advanced materials, there serious lag in construction technology.

Builders were forced to work not with what you need and the fact that there is. When in the early nineties, the situation began to change radically, the builders were largely not willing to develop new water-dispersion acrylic materials. Most textbooks on the subject seriously out of date, many aspects were not covered at all in our literature and have been very strong stereotypes about the poor level of quality of water-dispersed materials. Water-dispersed materials are produced mainly based on three types of dispersions: polyvinyl acetate (PVA), styrene-butadiene (BS) Acrylic (AK). All three types have their advantages and disadvantages. Since the dispersion of PVA is indispensable in adhesives for wood, but the colors on the basis of their nevodostoykie and therefore have a very narrow scope, despite the low price.

True, there are different Water-resistant PVA copolymers, yet they are inferior in color acrylic dispersions and their cost is quite high. Butadiene dispersions in good adhesives that require water resistance, but have limited light resistance, which makes them undesirable for use outside of work. Paint on this type of variance inexpensive, but can only be used inside buildings. Acrylic dispersion is more expensive than listed above, but they are the most versatile. It is no accident that Europe is based on acrylic dispersions is more than 70% of all manufactured inks. It should be noted that the acrylic water-dispersion paints are not only tightly captured construction market in Europe, but also invade the more sophisticated industries such as automobile and shipbuilding. What is the advantage over oil and alkyd paints: 1) Durability. Acrylic paint on the facade is 8 – 12 years, some cases – up to 30 years, oil 1.5 – 3 years, alkyd 3 – 5 years. 2) Environmental safety. Paints do not emit harmful substances (primarily solvents) as the substrate, and in operation. 3) Good hygienic properties. Paints form a "breathable" coating, permeable to vapor, but impermeable to liquids. 4) Fire – and explosion protection, both during storage and application, and during the operation. 5) Easy and convenient to use. Paint dry 30-40 minutes at room temperature and normal humidity. 6) Affordability. Environmental, fire safety and hygienic water-dispersion paints was the reason for the prohibition by law in several North American states, solvents, paints in all areas of construction. In Europe, also published a number of laws restricting the use of materials on the basis of solvents. Russia, though with lag, but also moving in the right direction. For example, there are restrictions on the use of materials on the solvent in children's hospitals.

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