WATER INGRESS SOLUTIONS – CURTAIN INJECTION
Confirma™ is a market leader in stopping water leaking through concrete structures using injection technology. Our practical experience coupled with the materials and systems we use has shown we have a proven track record of providing permanent treatments to these issues.
Advantages of Waterstop Injection include:
Flexible sealing of dynamic cracking
Permanent water seal providing durability for both cracks and construction joints
Substrate conditions range from dry to pressurised water, adjustable setting times to suit individual applications
Very low viscosity polyurethane-based elastomer resin
What is Water Ingress?
Water ingress is the term used to describe penetrating damp or water seepage in a property or structure. It occurs when water finds its way into a building, infrastructure, or any enclosed space, typically leading to moisture-related problems and damage.
Causes of water ingress can occur through various pathways, such as cracks, gaps, joints, porous materials, defective drainage systems, faulty internal plumbing or an inadequate waterproofing system. It can affect both the exterior and interior of a structure, impacting different elements, including walls, roofs, foundations, floors, and underground spaces. It’s important to get on top of this issue as soon as possible, as prolonged water exposure can weaken building materials through cracks and deterioration. Water ingress issues lead to corrosion of steel within a concrete substrate causing spalling.
Confirma™ specialises in rising damp and water ingress solutions relating to concrete and masonry structures (i.e. not roof leaks etc). We employ industry-leading technologies to seal cracks, fill voids, and strengthen concrete surfaces which ensures long-lasting repeated water ingress prevention. Our concrete repair experts assess the extent of damage, identify the root cause of water infiltration, and provide tailored strategies to repair concrete foundation cracks and treat water ingress.
We want to ensure complete client satisfaction, so our full range of water ingress solutions includes meticulous surface preparation, high-quality repair materials, and advanced waterproofing techniques. Our skilled team can also install or repair a damp-proof course to prevent moisture ingress from the ground and protect your concrete.
Evidence of Water Ingress in Commercial Structures
Water ingress occurs when water penetrates a building or structure where it shouldn’t, causing damage to the materials and structural integrity. Our proven solutions restore structures to their full protective capacity, safeguarding them against rain, hydrostatic pressure and future structural damage. Here’s how it manifests in commercial environments, like apartment buildings, office towers, tunnels or infrastructure projects:
Visible Signs
Staining or Discolouration:
Brown, yellow, or dark stains on ceilings, walls, or floors. Common in concrete surfaces or finishes near water pathways. Evidence of mould growth.
Efflorescence:
White, powdery deposits on concrete or brickwork caused by water dissolving salts and leaving residues as it evaporates.
Dripping Water or Puddles:
Active leaks, especially during or after heavy rain or near water sources.
Structural Deterioration
Cracking or Spalling:
Water intrusion weakens concrete, leading to cracking or chunks of material breaking away (spalling).
Rusting Reinforcement:
Exposure to water of the steel reinforcements within concrete causes rust, which expands and compromises structural integrity.
Warped or Rotting Materials:
Wood, plasterboard, or other non-concrete materials may warp, sag or rot from prolonged exposure.
Experts in Curtain Injection Systems
Confirma™ is an expert in waterproofing leaking concrete structures by using hydro-structure gel technology for curtain injection.
Curtain injection waterproofing systems work by using pressure injection to place a gel curtain behind the structure which then creates a physical barrier, preventing water getting to the structure. Holes are drilled through the structure in a grid pattern which are then used to inject a flexible hydro-structure gel into the soil on the other side. This gel curtain provides a durable solution to stop moisture or water from penetrating the structure and prevent any further damage to the concrete or brick/masonry wall.
Using curtain injection allows you to stop multiple leaks at once and protects the structure from long-term damage. It is the preferred method to repair leaking basement walls, underground car parks, concrete slabs, tunnels and other structures affected by various elements that can’t be sealed from the outside. Curtain injection may also be required when previous attempts at polyurethane crack seal injection have failed or when not all the cracks can be found in a leaking wall.
Waterproofing leaking structures using our hydro-gel technology
These structures include:
Historic brick foundations
Basement concrete walls and slabs
Masonry basement walls
Polystyrene basement walls
Basement and tunnel construction joints
Confirma™ are experts in Concrete Remediation
Confirma™ have the know-how to move forward on your concrete remediation repairs. For concrete repairs in Brisbane, Sunshine Coast or Gold Coast, consider the experienced Confirma™ team.
Concrete Cancer
Basement Leak
Concrete Beam
Concrete Foundation
Structural Strengthening
Structural Injection
Industrial Concrete Repairs
Concrete Spalling
FRP Composite Strengthening
Frequently Asked Questions
How does curtain injection work, and is it a permanent solution?
Curtain injection involves drilling holes in a grid pattern and injecting a hydro-structure gel behind the concrete structure. The gel forms a watertight barrier that prevents water from reaching the structure. When installed properly, it provides a durable, long-lasting solution designed to withstand environmental conditions and accommodate structural movement.
How long does the process take, and can it be done without disrupting operations?
The duration depends on the size and complexity of the project but is typically completed within a few days. Curtain injection is minimally invasive and can often be performed without requiring the structure to be vacated or interrupting operations, making it ideal for commercial and industrial settings.
What types of structures are suitable for curtain injection?
Curtain injection is effective for various structures, including:
- Basement walls and slabs
- Tunnels and underground spaces
- Foundations
- Masonry or concrete walls
- Historic brick structures
How does this method compare to traditional waterproofing, and can it handle high-pressure leaks?
Curtain injection is faster, less invasive, and more cost-effective than traditional methods like excavation. It can also effectively seal high-pressure leaks, as the hydro-structure gel forms a watertight barrier even under challenging conditions such as pressurised water flow.
How do I know if my structure needs curtain injection, and what are the risks of ignoring water ingress?
Signs of water ingress include visible leaks, stains, efflorescence, mould growth, cracked or spalling concrete, and rusting reinforcements. Ignoring these issues can lead to structural deterioration, increased maintenance costs, and potential safety hazards. If you notice any of these signs, consult a professional for assessment and treatment.
Is curtain injection environmentally friendly, and does Confirma™ offer warranties?
Yes, the process minimises environmental disruption by avoiding excavation and using safe, long-lasting materials. Confirma™ provides warranties on all water ingress solutions to ensure the quality and durability of the work, giving you peace of mind.