NP Drain two-ply composite sheet drainage membranes are made from high density polyethylene. They have a high compressive strength and offer drainage and waterproofing for vertical and horiztonal appilications.

NP Drain memebranes are comprised of a dimpled sheet that prevents water logging and a geotextile layer that filters out fine soil particles to prevent blockages. It is rot-proof, impact-resistant and will not warp or deform. 

Features, benefits and applications

  • Conforms to EN 13252

  • Acts as a protection layer over Type A Primary Waterproofing Systems

  • Compressive strength 150 kN/m2

  • Drainage Rate approx. 2.25l/s/m2

  • Service Temperature Range -30 to + 80 (degrees C)

  • Offers high resistance to compression thanks to its special dimple design

  • Features outstanding drainage capacity for handling unusually large quantities of water

  • Is rot-proof, impact resistant and non-deformable

Delta NP Drain is the perfect solution for waterproofing:

  • Buried roofs

  • Retaining walls

  • Tunnels

  • Civil Engineering builds

  • Podium Decks

Product details

  • Product Code: DMS 022

  • Material: High Density Polyethylene

  • Temperature Resistance: -30 °C to +80 °C

  • Stud Height: 8 mm (approx)

  • Roll Size: 2m x 20m

  • Compressive Strength: 150 kN/m2 (approx)

  • Drainage (l/s · m): 2.25 l/s · m (approx)