Varnish protects the surface from scratches and impact cleaning chemicals. Thorough pre-paint the door surface preparation helps to ensure a quality end result. The old surface was washed and flaking paint is removed. Irregularities shpatlyuyut, for example, alkyd putty Spakkeli, after which the surface is sanded until smooth. Ground surface napimer, Exy primer or swelling.

After priming produces a light sanding. Color produce, for example, paint empiricism. Stained conventional solid doors do not cause problems, but the paneled door is much harder to paint. Larger areas can be divided into several sections, if not the entire surface have time to paint until the paint has dried. On solid doors is recommended to apply the paint roller mohair, then straighten the surface yet with a wide brush.

When painting panel doors, first recommended to paint solid surface of the door. Excess paint spilled across the panels, remove the wet cloth. The output of the line tape makes it easy. Stained windows by changing the load of construction equipment and domestic water, and on the exterior window frames increases. Building denser than before, and, consequently, the moisture content in the air inside the building went up. Wooden box wood, used for window frames, not always from core, and the type of wood varies. In Finland, the industrial manufacturing, windows make up to full readiness, including the color at the factory. Unpainted windows deliver little. Most ready-stained windows, but only a small portion is treated with glaze. As a primer for factory use polyurethane primer and paint for a finishing – alkyd, or polyurethane paint katalitnye. Before entering to the color of windows should be check that the window frame was quite dry. At the same wood moisture should be less than 20% when measured at a depth of 5 mm. Before staining, sharp edges ukruglyayut polishing, then brush the surface clean from dust and dirt.

Evaluation Of Long-term Thermal Performance Insulation Material

In developed countries, plastic foams for over 50 years are used as heat insulation products in the form of rigid plates. Long-term thermal engineering parameters of plates made of extruded polystyrene (XPS) were improved with the evolution of blowing agents (BA). Products made of polystyrene foams without Freon (CFC, hcfc, HFC) up until the end of 1950. xps did not churn with the addition of Freon CFC-12 as "eternal", the long-term component that improves thermal performance xps. It was found that the diffusion rate of CFC-12 from the xps boards is very low. At the same time, it became known that the CFC-12 had a devastating impact on the Earth's ozone layer. At the end of 1980. when foaming xps Freon CFC-12 was replaced by HCFC-142b, which is equivalent to the cfc on thermo-technical parameters, but is less harmful to the ozone layer.

It was found that HCFC-142b has a low coefficient of diffusion through a film of polystyrene. As a consequence, plate xps, foam that gas demonstrate the same long-term thermal engineering parameters that insulation, foam CFC-12. Currently, the developing countries of the xps boards produced mainly using HCFC-142b and HCFC-22. The same foaming agents while (until 2010) are used for production of boards and xps in North America. In connection with the prohibition of the use of hcfc refrigerants were developed by various substitutes. One of the best alternatives for long-term thermo-technical parameters in the production of slabs xps was HFC-134a. Group hfc refrigerants do not contain chlorine.