• Best method is non-woven geo-textile under the slabs,
    (prevents weed growth and soil-heave),
    with gaps filled with resin-bound gravel to ensure
    storm water can drain between the slabs into your soil.

  • Even the best of the geotextiles, Terram, which I use under compactable gravel driveways doesn't stop soil heave completely. Cracking can still occur in inflexible stone surfaces.

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