Subgrade Preparation Before Geomembrane Installation

Proper subgrade preparation protects the geomembrane and ensures a long-lasting liner system.

Key Steps

Clear the area of rocks, roots, and sharp debris. Compact the soil to the required density. Fill depressions. Cover with a geotextile cushion if the subgrade is angular. Then unroll and weld the liner.

• A smooth, well-prepared base reduces puncture risk. Sand bags hold sheets until welding.

We supply geomembrane and geotextile. Contact us for technical support.