Future is an insulation layer, followed by drain board using an integral air gap. The drain board shields the waterproofing layer when relieving hydrostatic tension. Perimeter drains of 4-inch Routine 40 PVC covered with coarse gravel or septic rock in filter cloth completes the set up. To determine more https://www.blackpooldampproofing.co.uk/services1/plastering
Damp proofing Options
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