ENTRANCE DOORS:

An entrance door is an interior door leading to floors, stairs, attics and utility rooms, and an exterior door leading to the street or lobby.
An entrance door must fulfil a number of functions:

• Have smoke protection;

• Have fire protection features;

• Have increased thermal and acoustic insulation;

Increased resistance to moisture.
  Depending on the additional functions, doors can be soundproof, reinforced, warm and simple. Depending on the type of house and the wishes of the inhabitants, a product with reinforcement of one or the other part of the construction can be purchased or a single leaf can be chosen.  
  The main function of an entrance door is not decorative, but to ensure the safety of people's lives and property. Therefore, when choosing this product, you should first of all pay attention to its reliability, service life and protective characteristics.