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I ask myself the question of why it is forbidden the installation of vinyl wallpaper on sound absorbent sold in roll (polyurethane foam, 6mm thick and covered with paper). And to know if it concerns all types of vinyl paper (heavy, expanded, intssé). I intended to cover it with non-woven vinyl. This may pose a problem in terms of performance. And finally, I would have liked to know if this type of sound insulation is really effective.

The micro-alveolar structure of these sound insulators should not be obscured by a waterproof layer, especially in the air, as the various vinyl papers (heavy, expanded, etc.). I do not, however, that the non-woven should be used. This type of product ensures a limited "correction" phonic and not a true sound insulation.

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