ZIPS Z-4 Sandwich-panel

ZIPS – is the oldest trade mark owned by Acoustic Group. It is identified as Sound Insulating Panel System. From 1999 until now different modifications of sound insulating sandwich-panels for additional acoustic insulation have been produced under this brand. The products under trade mark ZIPS are also patented in Russia, CIS countries and European Union. More than 1 mln. m2 of sound insulating structures for additional noise insulation of walls, floor and ceiling have been produced during this period All materials are produced in Russia.

First of all, the sound insulating system ZIPS is frameless. Panels are sandwiches consisting of tongue-and-groove gypsum-fiver boards (GFB) and layers of sound absorbing material Shumanet and Shumostop. Without frame sound vibrations fail to bass by the layers indirectly and have to pass through the combination of sandwich-panel layers. It ensures high damping and noise retroreflection.

Rigidity of the sound absorbing layer facing a partition wall or a structural ceiling slab has been selected so that to ensure reliable frameless erection provided that minimum passing of vibrations through carcass of sound insulating material for face surface of the system.

In system ZIPS-POL and ZIPS-III-Ultra to increase vibration insulation degree of a panel from a noise-producing surface the special support vibration insulators made of elastomer Sylomer are provided.

The system is fastened to the protected surface (a wall or a ceiling slab) only through special vibration insulating units meant to maximize reduction of sound vibrations transfer from the noisy structure to sandwich-panels.

To minimize influence of flanking paths ZIPS system design does not have a hard contact between ends faces of panels in places of their contact with side walls or ceiling slabs. For this purpose a vibration insulating spacer Vibrostek-M consisting of two layers 4 mm each is used around the perimeter. Joints between panels and adjacent building constructions are closed with elastic vibroacoustic joint sealer Vibrosil.

Sandwich-panels have a tongue-and-groove joint to eliminate possible gaps during erection. After erection of sandwiches on the protected surface they are covered with a finished layer of acoustic GPB AKU-Line. It provides protection of vibration insulating units from damage during subsequent finishing and simultaneously acoustic insulation is improved owing to damping of the sandwich-panel surface with GPB boards at wave coincidence frequencies.

Panel sound insulating system ZIPS-Z4 consists of sandwich-panels 42.5 mm thick and special finishing gypsum plasterboards AKU-line 12.5 mm thick. A sandwich-panel of Ultra type is a combination of a GFB layer and glass-fiber board. Eight special vibration insulators made of Sylomer are used in the structure of the panel for support on a wall or a slab. In a free state these supports protrude above the sandwich-panel surface by more than 10 mm, but while installation they are being pressed and total thickness of the system together with finishing gypsum plasterboard layer equals 55 mm. Every sandwich-panel consists of eight vibration-insulating fastening units by which it is being erected on walls or ceiling slabs.

The most efficient design in terms of “thickness/result” ratio for additional acoustic insulation of walls and ceilings.

The system for additional acoustic insulation of walls and slabs. Efficiently prevents most of domestic noises: talking, crying, dogs’ barking, TV-radio medium-powered equipment, domestic impact noise. Working range of the system starts from 100 Hz.

It is used in construction and reconstruction of buildings to improve acoustic insulation of single-layer building constructions: gypsum, brick and concrete walls, partitions and armored concrete ceiling slabs. It is mostly used in living accommodations: flats and cottages.

TECHNICAL CHARACTERISTICS
System surface density: 39 kg/m2.
Improvement of weighted sound reduction index of airborne noise by panel system ZIPS-Z4: ?Rw = 13 – 15dB
Thickness of the system with finishing layer of GPB: 55 mm.
Flattering and levelling curve area of supporting and separation walls up to 55 mm.