Waterproofing Foundations: Stopping Leaks Before They Start

Why Waterproofing Matters

Water is the most relentless cause of degradation in buildings: it corrodes steel, rots timber, washes fines from concrete, and fuels mould growth. Effective waterproofing prevents damage, improves health outcomes and reduces lifecycle costs.

Problem Zones

Roofs/terraces, balconies/podiums, planters, bathrooms and laundries, and below‑grade basements. Each area faces unique thermal and movement stresses that must be addressed by system design.

System Selection

Choose membranes to suit movement and exposure: liquid‑applied polyurethane or hybrid systems for complex details; sheet membranes for predictable thickness; cementitious systems for negative‑side basement pressure. Always verify compatibility with toppings and adhesives.

Surface Preparation

Long‑term performance depends on prep: rectify falls, chase and seal cracks, prime correctly, and honour movement joints. Moisture testing and bond pull‑offs reduce the risk of early failure.

Maintenance & Recoating

Membranes age. Program inspections, outlet cleaning and re‑coating cycles before leaks return. Keep records for warranty and compliance.

Integration with Design

Coordination between architects, builders and remedial specialists ensures terminations, upturns, thresholds and penetrations are detailed to standard, resisting ponding and wind‑driven rain.

Result

The right system, properly prepared and maintained, delivers dry, durable spaces and a healthier building.