One of the notable projects we completed this month involved waterproofing five elevator pits at a mid-rise residential building on Grandview Way in North York. Among these, one pit presented a significant challenge due to an active leak that required immediate attention. The leak had already caused flooding in the pit, making the repair urgent to prevent damage to the elevator equipment, which could lead to a complete shutdown if left untreated.
Repair Method
Leak Stop and Surface Cleaning
To offer a lasting elevator pit waterproofing solution, we first stopped the active leak using hydraulic cement, a crucial step to ensure the effectiveness of the subsequent waterproofing measures. Once the leak was contained, we proceeded with surface cleaning and implemented specialised repair methods designed to provide long-lasting protection against future leakage, which included cold joint waterproofing and membrane installation.
Cold Joint Waterproofing
Cold joints, which are weak areas where two concrete slabs meet (such as the wall and floor), were thoroughly waterproofed around the entire pit. This step was crucial, as leaks often occur in these areas. To fully seal the cold joints, a continuous patch was installed at a 45-degree angle along the joints, providing a robust barrier against water ingress.
Polyaspartic Coating Application
The final step in our design was the application of a polyaspartic coating, which included a color pigment for aesthetic purposes. This coating was applied to both the floor and part of the walls (an upturn), ensuring comprehensive coverage. Polyaspartic coating fully seals any surface it is applied to, offering a long-lasting protective layer essential for maintaining the integrity of the elevator pit.
Benefits of Polyaspartic Coatings for Elevator Pit Waterproofing
Polyaspartic coatings offer several key benefits for elevator pit waterproofing. They provide exceptional resistance to abrasion, chemicals, and temperature fluctuations, ensuring the coated surfaces remain durable and effective over time. The quick curing time of polyaspartic coatings allows for faster project completion, minimizing elevator lockout time. Additionally, their superior adhesion and flexibility help accommodate structural movements and vibrations, which are common in elevator pits. Overall, polyaspartic coatings deliver a reliable and long-lasting solution for waterproofing elevator pits, protecting them from potential water damage and extending their service life.
By implementing these measures, we not only addressed the immediate issue with leakage but also provided a durable solution to prevent future leaks and protect the elevator equipment from potential damage.
Learn more about our repairs and see other examples of our work by visiting our website: https://www.jointsealwaterproofing.com/elevators.
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