Use one downpipe clip per 1m run to secure downpipes to a wall. These downpipe clips should be installed at the top of the downpipe and then in 1m runs to ensure a sturdy install.Cascade Cast Iron Style GutteringCascade Cast Iron Style guttering offers all the authentic, traditional looks of genuine cast iron with the benefits and price tag of plastic guttering. The high capacity 170mm deepstyle guttering means that Cascade is perfect for large residential project, commercial projects, churches and schools. Roofs that have large areas can benefit from Cascade Cast Iron Style guttering as the 170mm gutters can handle the large volumes of water coming off the roof.The traditional looks offered by Cascade Cast Iron Style guttering are aided by lovely period detailing across a range of hoppers available. Ogee, bath, gothic and motiffed designs will help you to capture the authentic look you desire with the advantages of plastic guttering. These advantages include that Cascade Cast Iron Style guttering is resistant to corrosion, its affordable, and its lightweight so installation is easier and quicker.When installing Cascade Cast Iron Style guttering the gutters must have a gentle 12mm downward slope at 3m intervals toward an outlet. This is to encourage and aid the flow of high volumes of water. Gutters should be fixed with a gutter support bracket at 1m intervals at least, aided by robust outlets, union brackets and angle brackets with double seals. There are 105mm round downpipes and 100mm x 75mm rectangular downpipes available for this range.Coming in seven colours, you can use Cascade Cast Iron Style guttering as a direct replacement for genuine cast iron guttering. For more information on this high capacity guttering system please contact our helpline on 01752 692 760.