Monthly Archives: January 2015

Window handles

Window handles are generally just plain ugly. However, it is increasingly possible to search for the original ones, deviating from the ugly standard.

In the aesthetic consciousness of users, window handles play a rather subordinate role. Single-family houses and apartments from …

INSULATING EXTERNAL WALLS

The type of external walls of the buildings determines whether the residents will feel comfortable in them. Thermal and humidity comfort taken together make up the so-called. indoor microclimate, which may or may not be beneficial to residents, and this, in turn, may …

BUILD ENERGO ECONOMY AND COMFORTABLE

From among all building elements, thermal insulation of external walls and flat roofs has the greatest impact on their energy efficiency.. These partitions are designed to protect the interior and occupants of buildings against the effects of weather conditions and excessive heat losses. Knowing, że przez ściany zewnętrzne wydostaje …

Plastics in construction

Plastics react differently to solvents. What could be the influence of solvents on these materials?? By acting with a solvent on the plastic, you can them:
1) dissolve;
2) loosen;
3) unfold;
4) saturate with solvent, which will be absorbed by them and kept for a long time (retention …

Various properties of wood

Various species of exotic wood are not suitable for applying water-soluble coatings, as these coatings give the wood a yellowish tint. What kinds of wood are we talking about?? The staining of the wood by water-soluble paints occurs with the following types of wood: aphromosis, …

Solid wood

Solid wood

What humidity the wood can have when coating is applied? While painting, coniferous wood in the external elements should have a humidity of max. 12%. When painting interior parts, the wood humidity may be max. 10%, and in rooms with central heating it should not …

Copper

Copper

How patina is formed on copper?
Firstly, the copper surface oxidizes in air, forming a brown layer of copper oxide. Then, under the action of carbonic acid contained in the air, a water-insoluble copper carbonate is formed, that is, a patina of green color.

Why in polluted by …