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A double vapor barrier system protects your cover in two layers from excessive water absorbtion:
Each foam core is tightly wrapped in a heat-sealed plastic liner to block steam and moisture.
A second, heavier-duty protective layer is added around the core, creating redundant protection against leaks, punctures, and long-term wear.
👉 Think of it as double insulation for moisture protection — if one layer ever weakens, the second layer still protects your core.
A double vapor barrier system protects your cover in two layers from excessive water absorbtion:
Each foam core is tightly wrapped in a heat-sealed plastic liner to block steam and moisture.
A second, heavier-duty protective layer is added around the core, creating redundant protection against leaks, punctures, and long-term wear.
👉 Think of it as double insulation for moisture protection — if one layer ever weakens, the second layer still protects your core.
