Track entry

In building physics, track entry is understood as the sound generated when the urine stream hits the urinal , the pee channel or the toilet bowl . Typical noises occur that can be heard in other rooms in the building , particularly through structure-borne sound transmission (transmission through walls and ceilings). If possible, these noises should be kept low by constructive measures in order to avoid disturbing other residents, especially in hotels or residential complexes. Noise protection measures are specified in DIN 4109-89 (noise protection in building construction).

Installation noises in general are calculated using the sound pressure level formula :

${\displaystyle L_{\mathrm {p} {IN}}=30-20\cdot \log {\frac {m^{\prime }}{220\cdot {\textrm {kg}}/{\textrm {m}}^{2}}}}$

In this formula, L _{p IN is} the installation noise level, which depends on the mass per unit area of ​​the wall m ′ . This means that the lane entry noises are lower, the heavier the wall per square meter on which the sanitary objects or their pipes are attached. When the mass is doubled, the level is reduced by a factor of 20⋅log 2 ≙ 6.02 dB.

Web links

Wiktionary: track entry  - explanations of meanings, word origins , synonyms, translations

• irbnet.de Fraunhofer Institute for Building Physics (IBP) Communication 21 (1994) Structure -borne sound decoupling sound insulation sets
• Articles about sanitary engineering