Roof Rain Water Down Pipe

Downspouts are drainage pipes that direct rain water from the roof to the ground.

Roof rain water down pipe.

The down pipe can terminate in a shoe and discharge directly onto the surface but using modern construction techniques would be connected through an inspection chamber to a drain that led to a surface. The first step in sizing a roof drain is to calculate the surface area of the roof that the drains will be covering as well as the average hourly rainfall rate at the building location. The building regulation s part h drainage and water disposal requires that adequate provision is made for rainwater to be carried from the roof of buildings. The next step is to determine each roof area that will be served by a separate leader drain pipe scupper or downspout.

Downpipe fittings and connectors are used to join sections of downpipe together or to connect them to other parts of the guttering system they form waterproof and durable seals ensuring that rainwater is effectively drained away. Water collected by a rain gutter is fed usually via a downpipe also called a leader or conductor from the roof edge to the base of the building where it is either discharged or collected. Downspouts are most commonly seen attached to the corners of home or building. Other roof outlets include stainless steel rainwater outlets cast iron rainwater outlets flat roof drainage outlet solutions and brand specific aco roof outlets and caro roof outlets.

Sizing a roof water drain.