Continuous Group Form Series Downpipes are intended to collect and channel water that runs off a roof.  It is intended that the metal downpipes be placed at the perimeter of the building (positioned outside the building envelope).

• Available throughout New Zealand.
• Inside Diameter = 67.3mm
• Outside Diameter = 68.5mm
• Capacity = 3550mm²

This product can be used for water collection, but can not be used where water tank head height is higher than top of drain. Customers can use Ezi-Flo Series downpipe where a charged/sealed system is required.

Downpipe capacity, both in size and number, determine the effectiveness of any rainwater system. Downpipes should be distributed evenly around the rainwater system and their design and specification should allow for maximum rainfall situations.

• Test information available from Pacific Coilcoaters, New Zealand Steel and Ambro Metals, combined with past history of rainwater products indicate, that provide the product use and maintenance is in line with the guidelines contained in the current literature, Continuous Group rainwater systems can be expected to meet the performance criteria in clause E2 of the New Zealand Building Code.
• All copper, brass and aluminium products listed above are fit for purpose in environment Zone B, C, D and E*. 
• Pre-painted steel products are fit for purpose in environment Zone B and C*.  They may be used in environment Zone D subject top pre-approval warranty application based on site address*.
• *In all cases, areas with high wind and/or salt and/or thermal/industrial atmospheric conditions may require specific engineering design (S.E.D.)  Reference: Section D, Durability from NZS3604:2011.