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Specifications for Waterproofing Wall Expansion Joints in Parking Garages

At Tenera, we understand the critical importance of waterproofing in maintaining the integrity of structures like parking garages. One particular area that demands careful attention is the waterproofing of wall expansion joints. These joints are essential components, allowing for the expansion and contraction of concrete elements due to temperature fluctuations and structural movement. Without proper waterproofing, these joints can become vulnerable points for water ingress, leading to corrosion, deterioration, and potential structural issues over time.

Repair Method

The waterproofing process for wall expansion joints typically involves several precise steps to ensure effective protection against water infiltration. Firstly, the joint must be thoroughly cleaned to remove any debris, dust, or existing waterproofing materials. This step is crucial as it ensures optimal adhesion of the subsequent waterproofing application. Once the joint is clean and dry, two backer rods are inserted to maintain the injected material in place – they act as a barrier, preventing the injected material from flowing out of the joint, and ensuring complete coverage.

Next comes the polyurea injection, a key step in the waterproofing process. Polyurea is a fast-curing, flexible material that adheres well to concrete surfaces and provides excellent waterproofing properties. It is injected into the joint, filling any voids and gaps and creating a seamless, watertight barrier. The fast-curing nature of polyurea ensures quick turnaround times, minimising disruptions to garage operations.

Following the polyurea injection, a waterproofing membrane coating is applied over the joint. This additional layer of protection further enhances the waterproofing system's durability and resistance to water infiltration. The waterproofing membrane forms a seamless, flexible barrier that effectively seals the joint, preventing water from seeping through and reaching the underlying structure.

Wall Joint Injection Benefits

By effectively sealing wall expansion joints, the waterproofing system prevents water ingress, thereby reducing the risk of corrosion, deterioration, and structural damage. This proactive approach to maintenance helps extend the service life of the parking garage, minimising the need for costly repairs and ensuring long-term structural integrity. Additionally, the seamless waterproofing membrane and polyurea injection provide a robust barrier against moisture, preventing issues such as mold growth and concrete spalling, which can compromise indoor air quality and aesthetics.

The waterproofing of wall expansion joints in parking garages is a critical aspect of structural maintenance and preservation. By employing a meticulous process that includes joint cleaning, backer rod insertion, polyurea injection, and waterproofing membrane coating, professional application installers can effectively safeguard the structure against water infiltration and its detrimental effects. This proactive approach not only enhances the durability and longevity of the parking garage but also promotes safety, sustainability, and cost-effectiveness in the long run.

Learn more about our solutions for parking garages – repair and waterproofing – by visiting this page:



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