Windows of special design, produced to achieve a high soundproofing of 45 dB. Most commonly used in buildings located in the city center (especially hotels), suppressing noise coming from outside.
This unique design and window manufacturing process is our own 2015 project, whose quality has been tested with a variety of tests, as evidenced by the following certification and by a growing number of satisfied customers.
The heat transfer coefficient for individual profiles is:
DJ 92 U=1,0
Family run business on the market for over 112 years
Profil 1