Rainwater drainage
Flat roofs: special structures
Quizzed article REF: TBA1910 V1
Rainwater drainage
Flat roofs: special structures

Author : Pauchet WILLIAMS

Publication date: May 10, 2018 | Lire en français

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5. Rainwater drainage

Rainwater drainage systems include :

  • collection structures: gutters, channels, valleys ;

  • drainage structures :

    • rainwater inlets (EEP),

    • downspouts (DEP),

    • overflows (TP).

5.1 General layout principles

Stormwater drainage systems must be installed in such a way that :

  • each EPP collects water from an area ≤ 700 m 2 ;

  • any point on a terrace is less than 30 m from the collection device or a PPE;

  • the distance between...

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