Green Roof Sound Behavior in Dry and Humid Conditions

By Ede Coromoto Martínez de Adrianza, Lesvia Pérez Laurens, Celso E. Llimpe Quintanilla and Manuel Recuero López.

Published by The International Journal of the Constructed Environment

Format Price
Article: Print $US10.00
Published online: September 29, 2014 $US5.00

Airborne sound insulation in situ tests were done for a roof prototype made with light and green material such as a coconut fiber substrate of 17 cm thickness in dry and humid conditions. Levels of background noise, sound pressure levels, and reverberation time in bands of 1/3 octave were measured in order to calculate the difference of the apparent level and apparent sound reduction index, as well as the prototype’s global values that characterize insulation of materials. It was observed that sound insulation in dry conditions is higher than in humid conditions, yielding 44 dB and 41 dB respectively.

Keywords: Sound Insulation, Green Materials

The International Journal of the Constructed Environment, Volume 4, Issue 4, October 2014, pp.35-45. Article: Print (Spiral Bound). Published online: September 29, 2014 (Article: Electronic (PDF File; 778.727KB)).

Ede Coromoto Martínez de Adrianza

Professor, Researcher, Facultad de Arquitectura y Diseño, Universidad del Zulia, Maracaibo, Zulia, Venezuela

Dr. Lesvia Pérez Laurens

Professor, Researcher, Facultad de Arquitectura y Diseño, Universidad del Zulia, Maracaibo, Zulia, Venezuela

Dr. Celso E. Llimpe Quintanilla

Professor, Researcher, Acoustics Laboratory of Science Department, Pontificia Universidad Católica del Perú, Lima, Peru

Dr. Manuel Recuero López

Director of the Mechanical and Fabrication Engeneering Department, Higher Technical School of Industrial Engineering, Universidad Politécnica de Madrid, Madrid, Spain