SD Consulting Engineers

Waterproofing design ensures that buildings remain protected from water leakage by identifying vulnerable areas and applying the right materials and systems. Through proper assessment, drainage planning, and durable waterproofing solutions, it prevents structural damage, mould growth, and long-term deterioration—keeping your property safe, dry, and stable.

We identify and resolve complex water penetration issues in existing buildings. Water leaks stem from various sources, including underperforming doors/windows, façade cracks, membrane failures (roofs, decks), and aggressive root systems in planter boxes.

Thorough investigation is essential, as leaks often involve a combination of factors, leading to both primary and secondary ingress points.

In Queensland, rainwater’s high chlorine content accelerates damage. For instance, penetrating water causes reinforcing steel corrosion within concrete slabs, leading to expansion—a condition known as “concrete cancer.”

As a structural builder under QBCC, prompt rectification is crucial. We provide structural repairs, often using localised deconstruction and reconstruction, to stop damage from spreading and safeguard your building’s integrity. Don’t wait—early action prevents costlier, extensive repairs.

Target Areas:

Design begins by pinpointing where water may enter, including the foundation, basements, roof, walls, joints, and utility penetrations.

Environmental Factors:

Designs must account for local climate, soil conditions, and the water table level to effectively prevent infiltration.

Above-Grade Waterproofing:

Protects exterior walls, windows, and roofs from rain and snow infiltration.

Below-Grade Waterproofing:

Shields foundations, basements, and underground structures from groundwater and hydrostatic pressure.

COMMON SYSTEMS:
  • Membrane Systems: Impermeable layers (e.g., bituminous, rubberized asphalt) applied to surfaces.

  • Cementitious Waterproofing: A mix of cement, sand, and water-resistant chemicals, often used in basements and pools.

  • Liquid-applied Waterproofing: Liquid coatings that cure to form a seamless, protective barrier.

  • Crystalline Waterproofing: Treatments that form crystals within concrete to block water pathways.

  • Drainage: Incorporating systems (e.g., pipes, gutters, French drains) to actively direct water away from vulnerable areas.

  • Vapor Barriers: Used in areas like basements to prevent moisture vapor from seeping through floors/walls, limiting mold and mildew.

  • Expansion Joints: Specialized joints that allow structural movement while maintaining a waterproof seal.

  • Bituminous Products: Tar and asphalt-based products applied in layers.

  • Polyurethane and Rubberized Coatings: Flexible materials that expand with movement for sealing joints and cracks.

  • Waterproofing Paints and Sealers: Surface coatings that provide a waterproof layer.

  • Membranes: Both self-adhesive and non-adhesive types, commonly used on foundations and basements.

  • Regular Checks: Waterproofing systems require regular inspection and maintenance.

  • Preventive Action: Periodic upkeep detects early issues like material degradation or weakened seals, preventing significant water damage.

Contact SD Consulting Engineers today for expert engineering solutions.

SD Consulting Engineers is a Queensland-based engineering consultancy specialising in structural engineering, seismic design, and waterproofing design.
We deliver solutions that are safe, practical, economical, and fully compliant with Australian Standards.

With modern tools, proven engineering methods, and a commitment to client satisfaction, we ensure every project is completed accurately, efficiently, and on time.

  • High-quality engineering solutions

  • Strong focus on client satisfaction

  • Accurate and efficient project delivery

  • Cost-effective and practical designs

  • Up-to-date engineering tools and methods

  • Commitment to safety and standards compliance

"SD Consulting Engineers provided us with clear, practical and cost-effective structural solutions. Their team was professional, responsive and extremely knowledgeable. Highly recommended!"

"We were impressed by their attention to detail and commitment to quality. The seismic design they delivered was thorough and met all required standards. Excellent service!"

"The waterproofing design we received was top-notch and perfectly suited to Queensland’s climate. The engineers explained everything clearly and guided us through every step."

"A very reliable and professional consultancy. They worked efficiently, communicated well, and delivered the project on time. We’ll definitely work with them again."

"SD Consulting Engineers truly understands both engineering and customer service. Their practical approach helped us save time and money without compromising safety or quality."