LORO-X Online-Calculation

Project Data

ITT2PXAM  /  3PCF

Calculation Parameters

(r5,5) l/s/ha
(r5,100) l/s/ha
Measure areas from the roof plan view (upload PDF or photo)

Upload the roof plan view, calibrate the scale on a known dimension and trace the roof areas – square metres are calculated automatically and transferred to the areas below. The marked roof plan view is included in the calculation PDF.

Drag the roof plan view (PDF or photo) here or click (multiple possible)

Area 1

m²
Main drainage – required discharge 0.0 l/s
x
Suggestions

Selected by required discharge and roof construction – please verify the waterproofing type.

Emergency drainage – required discharge 0.0 l/s
x
Suggestions

Selected by required discharge and roof construction – please verify the waterproofing type.

Combined drains (main and emergency in one)
x
Suggestions

Selected by required discharge and roof construction – please verify the waterproofing type.

This LORO-X Online-Calculation for Flat roof drainage calculates the required discharge (liters per second) corresponding to the DIN 1986-100 for Flat roofs for Main- and Emergency drainage with gravity- or siphonic flow.

*This calculation does not replace the professional consulting of the LORO-representatives! No guarantee for this Online-Calculation by LORO! The input values must be checked for completeness and compliance with the structural conditions (e.g. rainfall intensity, runoff coefficient, area allocation, whether each low point is drained). The rainfall intensity used (including the KOSTRA values suggested by postcode) is a non-binding service value without guarantee; the national or local requirements applicable at the building site are authoritative. Selection and verification of the rainfall intensity are the responsibility of the planner.

**For complex roof constructions, please contact the LORO field service for advice!

***If a roof area 2 drains onto a roof area 1, the values are added together.

****For buildings requiring special protection, the emergency drainage should be dimensioned in accordance with DIN 1986-100 section 14.2.6 so that the entire once-in-a-century rainfall can be discharged by the emergency drainage alone.