Insulation options between 29 dB and 42 dB depending on sheet thickness between 35 and 56mm. In addition to the demand for minimal acoustic insulation, in innumerable situations the door must have a fire resistance according to CTE depending on its location in project.
Puertas Castalla designs and manufactures blocks with 31, 35, 40 and 42 dB insulation resistant to fire for 30, 60 or 90 min. The higher the fire resistance, the greater the thickness of the sheet between 45 and 56mm.
These types of technical blocks will be equipped with an adjustable guillotine at the base of the sheet, a fence composed of a strip with a weatherstrip and a core with sound absorbing materials for 40 or 42 dB insulation, as well as hardware with fire resistance according to regulations.