This heavy-duty polyethylene sleeve has been specially designed to surround the pier and prevent it from being affected by ground movements.
One of the major challenges a helical pile foundation must face is resisting ground movements. When the ground moves, it tends to pull or push on the shaft of the pile. Techno Metal Post designed and developed this proprietary green-coloured sleeve that reduces the grip of ground movements on the pier.
The sleeve size is adapted to that of the pile and is installed around the pier when it is screwed into the soil. Once in place, the sleeve slides up and down the pile with natural ground movements. It allows the pile to remain perfectly stable during freezing, thawing or drought periods.
As with our helical piles, Techno Metal Post has its own plastics department for the manufacturing of our exclusive sleeves in Quebec, in a variety of sizes. This gives us complete control over the quality of the product and, consequently, that of your helical pile foundations.