Sound control in timber construction

Increasingly, detached houses and apartment buildings are being constructed from wood, as are industrial corporate buildings. This means that design engineers are faced with new challenges, particularly when it comes to sound control.

Although timber is an ecological and popular building material, it has the disadvantage that it can be excited by a small amount of energy and radiates noise. Alongside the direct passage of sound, sound transmission is also influenced by the type of joint found between partition walls, side walls, ceilings and structural components; the type of material can also be an important factor.

Working with design engineers from the various specialist departments, for many years now Getzner has been developing innovative sound control solutions made from Sylomer® and Sylodyn® for use in timber construction. This work has been highly successful: today, Getzner is the leading development partner in this field.

Sources of disturbance in timber construction

Airborne noise: people, animals, machines and installations excite air vibrations. For example, they are generated by speaking, movement or music.
Structure-borne noise and impact noise: Structure-borne noise is generated when solid objects or elements are excited to cause vibrations, for example by knocking, hammering or drilling. Impact noise, that is the direct mechanical excitation of ceilings, stairs, stair landings and similar elements, is a special form of structure-borne noise. It is not only generated when walking on an element, but also by moving furniture, objects falling down, children running around or operating domestic appliances.

The Getzner solution

The elastic bearing strips or bearing points consisting of Sylomer® and Sylodyn® are used for sound insulation in timber structures and significantly reduce sound transmission in flanking paths and walls. In this way it is possible to create a quiet living environment.

Products used

Sylodyn® bearing strips

Ceiling hanger

Sylodyn® elastic washers

GEPI angle brackets

Advantages for the customer

Getzner is the leading development partner for soundproofing solutions in timber construction
Increase in the quality of life and working conditions in timber structures by means of flank bearings
Mounting of timber construction modules with Sylodyn® strips prevents sound transmission via the flanking path
Mounted ceiling structures can attain an impact noise insulation level L_n,w of 38 dB and a noise insulation level R_w of 79 dB
Simple dimensioning of bearings and fast installation for optimal sound insulation