When using roof rainwater outlets adding leaf and gravel guards is a great way to prevent blockages building up over time.
Roof rain water down pipe.
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.
Downspouts are drainage pipes that direct rain water from the roof to the ground.
This is where the rainwater is lead away from the building s foundation so that no rainwater is able to pool around the building.
Downspouts are most commonly seen attached to the corners of home or building.
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 next step is to determine each roof area that will be served by a separate leader drain pipe scupper or downspout.
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.
Sizing a roof water drain.
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.