Correctly Installed Gutters

Gutters must be installed with adequate fall to ensure water is transported to appropriately located downpipes. Fall and joints should be constructed so that water does not pond to a depth of more than 5 mm. Regular gutter cleaning and maintenance is required to remove leaves and other debris that may restrict water flow to downpipes. Vertical downpipes are parrallel to wall and adjacent vertical references such as window jambs.

A gutter protection system (or any other product) that entraps debris or water between itself and any steel product surfaces, restricting coated steel’s ability to dry, is not recommended and is an exclusion in the product warranty.



Clause Number: 
Revision Category: 
3 - Substantial change to recommendation
Revision Detail: 

Changed recommendation for gutter drainage to be more consistent with MBIE tolerances.