(UNI EN ISO 140/3 - UNI EN ISO 717-1 - EN 14351-1 - UNI EN 20140 part 10)
The ability of an element in a building (window, rolling shutter box, door, etc.) to provide passive protection against noise and to insulate domestic interiors. The soundproofing power of a product is expressed in decibels (dB) and is denoted by Rw (C; Ctr). This value can be determined through a direct test method, set out in international regulation UNI EN ISO 140/3, designed to verify the sound-insulating power of a window installed on a partition wall of a double reverberant room. Alternatively, this value can be determined by using the tables contained in regulation EN 14351-1: this requires the knowledge of a product’s air permeability class, number of seals, and sound insulation of the double glazing to be used.
Doc Legno window (item 68/68) has a sound insulation of Rw = 43 dB
Sound insulation (UNI EN ISO 140-3 - UNI EN ISO 717-1)
Top 68/68 with 4 + 4 glass. 1 Stratophone / 15 argon / 3 + 3 top
Sound insulation index: Rw 40 (-3, -7) dB.
68/68 top with 4 + 4 glass. 2 Stratophone / 15 argon / 4 + 4. 2 Stratophone top.
Sound insulation index: Rw 43 (-3, -7) dB
According to regulation UNI EN ISO 717-1, the evaluation index for maximum sound-insulating power is equal to R'max = 65 dB
Elite 92 with 6+6 glass. 1 stratophone / 15 argon / 4+4. 1 stratophone top.
Sound insulation index: Rw 45 (-2;-5) dB
According to regulation UNI EN ISO 717-1, the evaluation index for maximum sound-insulating power is equal to R'max = 67 dB