NCC & Standards

Class 2 Waterproofing — Apartments and Multi-Residential

Why Class 2 buildings concentrate waterproofing risk, and how staged balcony, podium and wet area works are typically delivered.

Repetition multiplies defects

A detail repeated across a hundred balconies repeats its consequences too. Prototyping and inspecting the first areas of each type is far cheaper than rectifying the whole building later.

Occupied buildings

Remedial work on Class 2 buildings runs around residents. Access, staging, noise, odour and reinstatement have to be planned with the strata manager or builder before the first tile is lifted.

Remedial WaterproofingInvestigation and rectification of failed membranes, leaking balconies, planter boxes and decks.
Balcony WaterproofingNew and remedial balcony membranes with correct falls, upturns and tile interfaces.
Balcony Rectification ProgrammeStaged rectification of leaking balconies across an occupied residential building, including thresholds and drainage.
Multi-Level Balcony MembranesBalcony membranes installed across multiple levels with consistent falls to drainage on every slab.
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