External and internal entrance doors

Entrance doors to residential premises closing the entrance from a staircase shall, in terms of their functionality, meet three basic criteria: acoustic insulation, thermal insulation and resistance to burglary. Doors properly selected according to these criteria provide comfort of use, silence and safety.

Thermal insulation is a quite important parameter for entrance doors separating residential premises from a staircase. Opening windows in a staircase and quite a large number of opening cycles of building external doors results in draughts and differences in temperatures between flats and the building staircase. Acoustic insulation is a feature especially important in multi-family residential buildings, where proper sealing of entrance doors ensures noise suppression and prevents odours and dust from entering into residential premises. Resistance of entrance doors to burglary describes a level of room closure protection, from class RC1 to RC4, depending on the level of burglary risk. A proper class of protection against burglary is ensured by solid design of door leafs and proven, high-quality locks and fittings. Entrance doors are manufactured in various technologies with the use of various structural materials, the most common on offer being:

• entrance steel doors
• entrance wooden doors

The materials and modern technologies applied in manufacturing entrance doors allow us to achieve a superbly interesting and varied look emphasising aesthetic advantages of buildings in which the entrance doors are mounted. Entrance doors as a showpiece of a flat and an element of the arrangement of an entire residential building while maintaining burglarproof properties, thermal and acoustic insulation, should be attractive and visually appealing, hence all doors offered by us are manufactured in many interesting designs and a very rich colour patterns. They ideally match modern designs of multi-family residential buildings.

Exterior entrance doors are a vital component of a residential building. External doors with their appearance and colour pattern should, most of all, be consistent with the façade and body of a building, but equally important are their durability and comfort of use. Our product offer of entrance doors comprises structures made of wood, aluminium, steel and composite doors. Regardless of the manufacturing material, all types of the doors are characterised by a rich colour palette and interesting design and these make it possible to use them both in classical single-family buildings and modern avant-garde house designs. Apart from a proper look of entrance doors, their performance characteristics are very important, and most of all thermal and acoustic insulation and embedded burglarproof components.
External doors are made of various materials: primary structural materials include wood, fibreglass, PCV, aluminium and steel, therefore the range of external doors covers:

• steel doors,
• wooden doors,
• profile aluminium and PCV doors,
• composite doors

The energy-saving feature has for some time now been a basic standard in construction industry, therefore modern external doors, apart from an interesting design adjusted to a building façade, should have the best thermal insulation possible. A low U value of entrance doors is important mostly in the winter season due to reduction of thermal energy use, but also in summer on hot days it prevents a building interior from heating up thus ensuring comfort for its users.
Another critical parameter of external doors is acoustic insulation assuring silence and peace for building inhabitants.

External doors should effectively protect a building against adverse weather conditions, therefore in respect of entrance doors directly exposed to external factors a proper class of watertightness and windproofness is of vital importance. Doors properly selected in terms of technical parameters ensure a long-term comfort of their everyday use.