Defect Category
Services & Drainage
Technical guidance covering stormwater drainage deficiencies, downpipe defects, inadequate drainage design and pipe penetration failures in Class 2 residential buildings.
Blocked & Undersized Stormwater
Stormwater drainage system failure from blocked pipes, undersized infrastructure and inadequate maintenance.
Downpipe Defects
Leaking, cracked, blocked or incorrectly terminated downpipes causing water damage to the building envelope.
Inadequate Drainage Design
Deficiencies in the hydraulic design of stormwater systems leading to surcharging, ponding and overflow.
Pipe Penetration Failure
Water ingress at service pipe penetrations through slabs, walls and roofs from failed seals and collars.