Delta Root Block - Root Barrier Membrane

In stock
£235.00 Ex VAT
£282.00 Inc VAT

Delta Root Block provides a robust root barrier, protecting the primary waterproofing layer from damage in green roofs, hybrid roofs and blue roofs or where intrusive roots are present.

Root barrier for green roofs

Delta Root Block has been specially designed to offer protection to primary waterproofing membranes against a wide range of tree roots, shrubs and planters.

This high  performance, puncture resistant root barrier membrane, provides reliable and long lasting protection to the primary waterproofing within a green roof system. 

Benefits of Delta Root Block:

  • Act as a protection layer to primary waterproofing membrane
  • Extremely durable and tough
  • Suitable for use with newly planted or existing trees and plants
  • Reliable and permanent protection 
  • Flexible and easy to install

Installing Delta Root Block

Once a primary waterproofing membrane has been applied, you can roll out the Delta Root Block membrane over the primary waterproofing membrane. Cut the root barrier membrane to size with suitable cutting equipment. 

Subsequent lengths of membrane should be placed next to each other, overlapping by at least 150mm. These joints can be sealed with Delta tape or heat welded.

Any service penetrations should firstly be sealed using a combination of Delta Corner Stip and Delta Tape, with sections of Delta Root Block cut neatly and placed over protruding pipework. 

Waterproof & Dry - Trusted independent suppliers of Delta products.

If you have any technical questions about Delta Root Block, call our expert team on 0203 947 2972. Browse our full range of Delta External Waterproofing Systems.


  • Compatible with bitumen
  • Puncture resistant
  • Heat welded or tape joined
  • Prevents the spread of invasive roots


More Information
Model DMS119
Manufacturer Delta Membranes
Packaging Individual roll
Size 100m² , 25m x 4m, (0.4mm thickness)
Dillution Ready to use
Coverage 25m x 4m (100m²)
Colour Black
Country of Manufacture United Kingdom

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