Core performance features of UPVC profile doors and windows – Outstanding sound insulation and noise reduction.

The multi-chamber structure (the mainstream product has 6-7 chambers) causes the sound waves to undergo 6 refractions and attenuation, resulting in a sound insulation performance of 35-42 decibels, which is superior to that of ordinary aluminum alloy doors and windows by 10-15 decibels.

Clinical verification: After the application of this product in the street-facing residences, the indoor noise level has been reduced to below 35 decibels, meeting the international quietness standard.