Thermal and acoustic protection screen for e.g. tunnel of motor vehicle, has porous layer, sealed film and elastic layer that are superimposed one on another, and protection layer placed with respect to structural and/or elastic layer

摘要

The screen (1) has a structural porous layer (2), acoustic sealed film (3) and elastic layer (4) that are superimposed one on another. The porous and elastic layers are formed of compressed felt e.g. glass fibers, joined by resin. The film is made of plastic material. A protection layer (5) is placed with respect to the structural layer and/or elastic layer. A complementary sealed film is placed against an external surface of the porous layer. The thickness of the porous layer ranges is 3 mm, and the density of the porous layer is 0.20. An independent claim is also included for a method for forming a thermal and acoustic protection screen.