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Lab-based study to analyse the influence of parameters on the water retention capacity of green roofs
Citation Link: https://doi.org/10.15480/882.3439
Publikationstyp
Research Report
Date Issued
2015
Sprache
English
Institut
TORE-DOI
TORE-URI
Contribution to Conference
This paper presents a laboratory-based analysis of green roofs water retention capacity. The testing facility includes the rainfall simulator “RS-TUHH”, two green roof models and the measuring equipment. The first series of tests was carried out with three rain events and three roof slopes. Test results show that the thicker the substrate the higher the retention. However, the longer the duration of the rainfall the smaller the influence of this parameter. This is confirmed by the value of the discharge coefficient “C” calculated with the FLL-procedure. The green roof can retain the rainwater until its saturation, then no further retention takes place. The variation of the roof slope between 2 % and 6 % does not show significant effects.
Subjects
Green roofs modelling
rainfall simulation
laboratory tests
DDC Class
600: Technik
620: Ingenieurwissenschaften
710: Landschaftsgestaltung, Raumplanung
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Palmaricciotti, Patzke et al 2015 - Lab-based study to analyse.pdf
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