Why Waterproofing Details Are Often Overlooked - And How Early Planning Saves Projects
Waterproofing is one of the most critical parts of construction, yet it’s often left until late in the design or procurement stage. This leads to rushed decisions, incomplete scopes, and costly variations on site. In New Zealand’s fast-paced construction market, getting waterproofing right from the start can prevent project delays, rework, and budget blowouts.
EDUCATIONAL
Sumit Kumar
8/27/2025
The Hidden Impact of Waterproofing Errors:
Waterproofing issues are rarely obvious during design. But on site, a missed detail or incorrect system choice can mean:
Expensive repairs that eat into margins
Delays due to product availability
Health & safety concerns
Reduced building lifespan and client trust
By the time issues show up, they’re often too late - or too costly - to fix easily.
The Role of Early Detailing and Collaboration:
Waterproofing requires coordination between designers, suppliers, QS teams, and installers. Projects that succeed tend to:
Finalise detailing early with input from all parties
Use clear, system-based drawings that minimise guesswork
Budget accurately for complex junctions, penetrations, and transitions
Involve QS and procurement teams early to identify risks and costs
When collaboration happens early, projects are more predictable and profitable.
Why This Matters to Everyone (Not Just Waterproofers):
Waterproofing is not just a subcontractor’s concern. Architects, main contractors, and even clients benefit from a proactive waterproofing strategy:
Architects avoid redesigns and site revisions
Main contractors save on programme delays
Developers and owners get a higher-quality, low-maintenance asset
Need clarification for your waterproofing job?
Waterproofing may only be a fraction of a project’s budget, but its impact is far greater. A small oversight today could cost thousands tomorrow. At AQUOSYNC, we believe in bringing clarity to waterproofing design, documentation, and cost planning early - so your projects stay on track, on time, and watertight.
