AR Chambers
This product is available in West Virgina only!

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Drainage Cores are used in combination with filter materials to build subsurface drainage systems. This improves waterproofing designs by protecting the waterproofing membrane and reducing water pressure on below grade structures and retaining walls. Drainage Cores are manufactured from High-Impact Polystyrene (HIPS). This waterproofing board is commonly used for French Drains.