4m x 25m x 250mu BBA Black DPM
Instant price, 12% off. Full price £49.03 ex VAT with Trade Rewards.
Unit price per- Moisture Protection
- Construction Grade
Typical lead time 2-3 working days. Next-day delivery on request: call before 11am (not guaranteed).
Product Description
This 250 micron BBA-certified black polyethylene damp-proof membrane (DPM) provides reliable protection against rising damp in ground-floor constructions. Compliant with BS 8102 and BBA approved, it is suitable for use beneath concrete slabs, screeds and insulation in both new-build and refurbishment projects. Supplied in a 4 m × 25 m roll (100 m²).
Key Benefits
Application
Lay the membrane over the prepared sub-base or blinding layer with a minimum 300 mm overlap at all joints. Seal overlaps with DPM jointing tape. Turn up at perimeters to lap with the wall DPC. Take care to avoid puncturing: protect with a sand blinding layer if laid directly on hardcore. Can also be used as a slip membrane over insulation before screeding with a 150 mm overlap.
Coverage
Each roll covers 100 m² (4 m × 25 m). Allow approximately 10–15% extra for overlaps and wastage depending on floor plan complexity.
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Restore & Protect
Our contracting clients can round up their final invoice to the nearest £5, £10 or £20. We match the amount pledged and donate the total to Tree Sisters.
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