Determine the offset length
- Measure from the bottom of the gutter to the bottom of the fascia board. This is measurement A (fig 1).
- Cut a piece of downpipe to a measurement A and place it onto the dropper with an elbow, see fig 2.
- Measure from point C on the elbow to the wall of the building see fig 3. This becomes measurement B. Then deduct 120mm from measurement B to allow for the elbow and standoff from the wall. For example if measurement B is 600mm, the length of the downpipe required for the offset is 480mm long.
- When assembling the offset use a neutral silicone sealant making sure that there is a continual ring of sealant up against the stop inside the elbow and another ring 10mm from the outside edge of the elbow.
- Place the first downpipe bracket under the elbow to retain in place then continue to attach the downpipe to the wall of the building using three downpipe brackets per downpipe.
NOTE:
- Dimond does not recommend the use of downpipes in wall or ceiling cavities
- Dimond downpipes are specifically designed for use with Dimond fascia and gutter systems.
- To ensure a water tight fit we recommend using only Dimond accessories when installing metal downpipes.
