Grading, downpipes and joints: closing the water paths at handover
The handover items that decide where rain goes around a Mambourin home.
In short: On reactive clay, where water goes after handover matters as much as the slab design. These items control it.
Ground that falls the wrong way
Grading towards the slab instead of away has been recorded at Mambourin handovers. It puts water against the slab edge every time it rains.
Downpipes off the stormwater
A downpipe disconnected from its pipe dumps the whole roof catchment beside the house.
Driveway joins
The isolation strip between slab and driveway needs sealing, or debris and water get underneath.
Condensate and outlets
Air conditioner condensate draining on the ground and damaged sewer caps are small items with the same theme.
Windows and sills
Rubber flashings out of place and missing sill flashings let water into the wall.
Written by our local inspection team from work carried out in Mambourin. Licensed building practitioners, Building & Plumbing Commission registration CDB-U 53425.
