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Achieving Durable Waterproofing for Elevator Pits

When Tenera was tasked with providing design specifications to ensure lasting waterproofing for an elevator pit in a mid-rise residential building on Yonge St. in Richmond Hill, the client was looking to achieve durable and effective waterproofing results. We provided the specifications to the contractor to implement a specialised multi-step repair method tailored to the unique challenges of the elevator pit environment.

Cleaning and Surface Preparation

The initial step involved thoroughly cleaning the elevator pit to identify any potential leaks. The contractor then performed chipping to open up cracks sufficiently, allowing for the proper installation of crack repair materials. Once all leaks were identified and stopped, parging was applied to create an even surface, ensuring a more durable and reliable repair.

Cold Joint Waterproofing

Cold joints, which are weak areas where two concrete slabs meet (such as the wall and floor), were meticulously 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.

Learn more about our design applications for elevator pit repair and waterproofing by visiting this page:


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