Dimond 150 Half Round South Island Gutter

Dimond 150 Half Round Gutter

Suitable for residential

Suitable for light commercial

150 Half Round Gutter is manufactured in Christchurch.

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Dimond 150 Half Round Gutter Profile

The 150 Half Round is an excellent finishing touch for any home. Manufactured in Christchurch for the South Island, the 150 Half Round is perfect for the classic kiwi home through to a unique architectural design.

Dimond 150 Half Round Gutter Profile

Dimond 150 Half Round Gutter Profile Dimensions

all dimensions given are nominal

Effective cross sectional area (with 10mm free board)


Flow capacity

100 litres/min

Minimum recommended fall

1:500 (2mm in 1m)

Minimum downpipe - circular


Catchment area per downpipe based on the above flow capacity is given in the following table.

Rainfall intensity (mm/hr) 40 50 60 70 80 90 100 120 140 160 180 200
Catchment area per downpipe (m²) 150 120 100 85 75 66 60 50 43 37 33 30

Material options including thickness and grade


0.55mm G300


0.55mm 1/2 hard

Roll-forming facility


*Only available in the South Island

Bracket Material Thickness
External Aluminium 4mm x 30mm

Recommended maximum spacings

900mm spacing (refer snow fall instructions for spacings where snow fall is possible)

Recommended fixings

Screw or nail fastenings to be compatible with substrate and bracket material avoiding dissimilar metal contact.

Sales Centres
Tech Support

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