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Article

ACOUSTIC EVALUATION OF A NEW MODULAR SYSTEM FOR GREEN ROOFS AND GREEN WALLS

, variety and height of plants, affect the sound absorption of a modular system for green surfaces in simulated conditions. The results show that introduction substrate (S2) can improve the weighted sound absorption coefficient in 15% and the addition of plants (S3) improves it 20% more. However, if a variety of smaller and higher plants is used (S4) the weighted sound absorption coefficient (αw) can reach to 0.80 and an absorption class B can be obtained.

Maria MANSO, João Paulo CASTRO-GOMES, Michal MARCHACZ, Marcin GÓRSKI, Leszek DULAK, Rafał ZUCHOWSKI

Architecture, Civil Engineering, Environment , ISSUE 2, 99–108

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