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AQUA Q
3300 Highway 7 West Suite 500
L4K 4M3 CONCORD, ON / Canada
+1 647 7959272
dominic.turner@aquaq.ca

design rainfall

The design rainfall is a variable used for calculating the rainwater quantities to be expected. Canals and other wastewater or infiltration systems must not indicate an overload for the design rainfall. A common method for design in accordance with DIN 1986-100:2007-04 is that the design rainfall for roof drainage is a rain event lasting 5 minutes with a statistical frequency of 5 years. The notation for this is r(D;T). The unit of measure for design rainfall is litres per second and hectare.

                                         
 
 
 

AQUA Q
3300 Highway 7 West Suite 500
L4K 4M3 CONCORD, ON / Canada
+1 647 7959272
dominic.turner@aquaq.ca

 

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