Good afternoon! Cold climate absolutely affects screw pile installation - it's critical that your piles penetrate below the winter soil freezing level. This is part of why geological surveys are so important. If pile blades don't reach below the frost line and into dense load-bearing soil, frost heave becomes a serious problem. When water-saturated soil freezes, it expands and can push piles upward. Conversely, if piles end in heaving layers, the freeze-thaw cycle will cause them to shift, subside, or be pushed out over time. Without proper depth calculation based on your local frost depth and soil conditions, your foundation will experience seasonal movement that can damage your structure. The winter soil freezing level varies significantly by location - what's adequate in one area may be completely insufficient in another. This is exactly why specialists conduct geological surveys with groundwater level analysis and provide bearing capacity coefficients for correct pile selection. Read more at
https://how-to-build-a-foundation-c...25/05/4-reasons-not-to-drive-screw-piles.html In cold climates, the consequences of improper installation are even more severe, making professional installation especially valuable.
