In the years 1835-1838 the French chemist Henri Victor Regnault invented polyvinyl chloride (PVC), from which the metal-plastic doors and windows are made. Since then, the formula has undergone numerous changes, and in its current form has almost ideal properties that make the product durable, practical and, most importantly, environmentally friendly.

The undeniable advantages of PVC windows and doors are their heat and sound insulation, safety, durability, comfort and aesthetic qualities. Doors made of PVC are widely used in shops, offices, private houses and apartments. Internal (interior) doors are lighter, can be partially made of glass, replenished with semi-automatic rotating locks, and in some cases with locking keys. They provide sufficient isolation of noise.

 

 

Aluminum was discovered in 1827. The presence of magnesium in the composition increases the strength and durability of the metal. Thanks to the functionality of the profile, reliability, flexibility and durability, aluminum windows and doors are widely used in the construction of industrial and residential buildings.

Aluminum doors and windows are durable, fire-resistant and environmentally friendly, they are able to withstand the impact of the environment, large temperature fluctuations (from -50°C to + 50°C). Installation of aluminum windows in residential buildings can significantly reduce noise, as well as protect living quarters from dust and cold. And the method of coating aluminum with powder paints makes it possible to produce aluminum doors and windows of any color, even to obtain the effect of wooden texture.

The duration of use of all types of doors and windows depends primarily on the quality of raw materials, and on proper professional assembly and installation.