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  5. ZINCALUME® Downpipe 100 x 50

ZINCALUME® steel downpipe 100 x 50 for metal roofing, durable rectangular rainwater downpipe

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Complete your roof drainage system with a ZINCALUME® steel downpipe 100 × 50, designed for durability, clean lines, and reliable rainwater control. Suitable for metal and tiled roofs, these downpipes are lightweight, easy to install, and built for long-term performance.

Key Details 

  • Size: 100 × 50 rectangular downpipe

  • Material: Genuine ZINCALUME® steel by BlueScope

  • Thickness: 0.40 BMT

  • Lengths available: 1.8m or 2.4m

  • Application: Metal and tile roofing systems

Compatible Accessories

 

Manufactured from high-tensile Australian steel, these downpipes offer excellent corrosion resistance, long service life, and a neat, professional finish on residential and commercial roofing projects.

Backed by the strength of BlueScope’s industry-leading ZINCALUME® steel, all products are performance tested and supported by the BlueScope warranty for total peace of mind.

Finish off your roof in style with Downpipes 100 X 50 in ZINCALUME® steel. 

Select from 1.8 metre or 2.4 metre lengths.

Designed for greater durability, longer life and compatibility with steel and tile roofs

Manufactured from light, strong, high tensile steel, fast, easy to install and compatible on both tiled and metal roofs.

Also known as a downspout, waterspout, and drainspout. Downpipe positions must be located at low points in eaves gutter or box gutter sections (between high points) or must be evenly spaced in the gutter when gradients are flatter than 1:500.

Downpipes must be connected vertically to the base of the gutter.

Downpipes should be kept to a maximum of 10 metres apart for residential installations. Larger industrial/commercial projects which use larger downpipes can space to a maximum of 18 metres.