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BluWater Solutions High Strength Integrated Filtration, Retention and Drainage Layer
BluWater Solutions High Strength Integrated Filtration, Retention and Drainage Layer - Image 2
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BluWater Solutions High Strength Integrated Filtration, Retention and Drainage Layer

A high-strength 8mm drainage layer with integrated filtration fleece for effective water management and structural protection.

£217.79£181.49

Available in pallets of 6 units

  • Integrated filtration and drainage in a single product, simplifying installation.

  • High compressive strength of 400 kN/m² makes it suitable for demanding applications and high point loads.

  • Helps manage water effectively by providing rapid drainage and preventing water build-up.

  • Protects waterproofing systems in both horizontal and vertical applications.

  • Root-resistant construction helps support long-term green roof performance.

BluWater Solutions High Strength Integrated Filtration, Retention and Drainage Layer – 8mm is a durable drainage and protection layer manufactured from recycled HDPE and bonded to a high-quality permeable geotextile. Designed to combine filtration, drainage, protection and water management within a single product, it provides a practical solution for a wide range of green infrastructure and landscaping applications.

Its enhanced load-bearing performance makes it particularly suitable for environments exposed to high point loads, including access roads, parking areas and emergency vehicle routes. The profiled drainage layer creates effective water channels, helping to remove excess water from the system while maintaining the integrity of the construction above.

The integrated filtration fleece prevents fine particles from entering drainage pathways, helping preserve long-term performance. The product is also suitable for protecting waterproofing membranes in both horizontal and vertical applications and can be used beneath green roofs, podium decks, terraces, foundation walls, basement slabs, bridge abutments and tunnel structures.

Features

  • Manufactured from recycled HDPE with integrated polypropylene geotextile.
  • Combines filtration, retention, drainage and protection functions.
  • High compressive strength for demanding applications.
  • Root-resistant construction.
  • Suitable for both horizontal and vertical installations.
  • Supports efficient water drainage.
  • Protects waterproofing systems.
  • Easy-to-handle roll format for simple installation.
  • High-strength HDPE drainage core manufactured from recycled material.
  • Factory-bonded polypropylene filtration geotextile.
  • Waterproof and resistant to a wide range of chemical compounds.
  • Root-resistant construction.

Drainage Core Performance

  • Compressive strength: 400kN/m².
  • Water drainage capacity (MD): 3.05l/s × m.
  • Water drainage capacity (CMD): 2.9l/s × m.
  • In-plane water flow capacity (20kPa): 3.4l/ms.
  • Tensile strength (longitudinal): 17.0kN/m.
  • Tensile strength (transverse): 16.8kN/m.
  • Static puncture resistance: 1.35kN.
  • Dynamic puncture resistance: 30mm.
  • Elongation at maximum load: 48%.

Integrated Filtration Fleece Performance

  • Characteristic pore size: 123μm.
  • Water permeability normal to plane: 100 × 10&supminus;3m/s.

Dimensions

  • Drainage layer height: 8mm.
  • Product weight: 920g/m².
  • Roll size: 2m × 15m.
  • Coverage per roll: 30m².
  • Pallet quantity: 6 rolls.

Durability

  • Designed service life of at least 25 years in natural soils with a pH range between 4 and 9.
  • Ageing resistance meets current performance requirements.
  • Product should be covered within two weeks of installation.
  • Suitable for long-term use in green roof, landscaping and civil engineering applications.

Installation

Install the drainage layer with the integrated filtration fleece positioned in accordance with the project design. Ensure adjacent rolls are installed to create continuous drainage pathways and filtration across the application area. Overlying layers should be installed as soon as practical following installation to protect the drainage layer and maintain performance.

Trade and Commercial Customers

Get in touch to discuss your requirements and receive a bespoke quotation for your projects:

Alternatively, you can contact our team on 01904 757372 Monday – Friday, 8.30am – 5pm (excluding Bank Holidays)

Delivery is free of charge on all orders to the majority of UK mainland addresses*; you can select your preferred delivery date for Turf, Handy Bag and Bulk Bag orders in the checkout, before payment. Saturday delivery is available for a set fee of £72 per order (including VAT).

You will receive an email following your order confirmation which will advise you of the delivery method for your delivery address, i.e. ‘Tail lift & manual pallet truck’, or ‘Hiab’.  Further details can be found in our *Delivery Policy.

Please note, in exceptional circumstances, the delivery method stated may not be possible, in which case our Customer Service Team will contact you with an alternative solution.

  • Medallion Turf & Biodiverse Turf: Free delivery is available Tuesday – Friday for most addresses (EH postcodes-only: Monday – Friday). Saturday delivery is available  for a surcharge of £72 per order.*
  • Bulk Bags, Small/Handy Bags & Green Roof Kits: Free delivery dates are available Monday – Friday. Saturday delivery can be selected for a surcharge of £72. If bags are ordered with Turf, the available dates shown in checkout will be Tuesday – Saturday.*
  • Wildflower Turf: Delivery is free of charge Tuesday – Thursday. Saturday delivery is unavailable.* Wildflower Turf will be delivered separately to any other items on the same order.
  • Wildlife Planters, Green Roof Components & Green Roof Kits: Delivery of these products will be within 5-7 working days, Monday – Friday. A free delivery date can be selected at checkout. Slightly longer lead times may be required for planters where colour options have been selected.
  • Grass Seed & Fertiliser: Where these products are ordered with Turf or Bulk Bags we will endeavour to deliver them together, however if purchased separately they will arrive within 2-3 working days via courier, Monday – Friday.

Take a look at our Ordering & Delivery Frequently Asked Questions.

Fuel Surcharge

We have worked hard to mitigate the impact, but due to the current disruption to energy supplies a fuel surcharge of 6.5% will be added to all orders. We appreciate your understanding. Full details can be found in our Delivery Policy.

Further details coming soon…

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Important update: Temporary 6.5% surcharge effective 7 April 

At Rolawn, we are committed to maintaining the high standards of quality and service our customers expect, so we want to be open with our customers about a change that will affect pricing from Tuesday 7th April. 

This decision has been taken in response to disruption to energy supplies, which has led to significant increases in wholesale prices, affecting not only fuel and fertiliser but also costs throughout our wider supply chain. As a business that relies heavily on fuel for both transport and operations, these sustained cost pressures have become increasingly difficult to absorb.  

While we have worked hard to mitigate the impact, the scale and pace of recent price increases have now exceeded what we can sustain internally, and we therefore need to recover a proportion of these externally driven increases. 

From Tuesday 7th April, a temporary 6.5% surcharge will apply to all products.  

We know that any increase in price is frustrating, particularly at a time when many businesses and households are already feeling under pressure. That is why we want to be clear that this is not a decision we have made lightly, and not one we wanted to make. It has been introduced solely to help offset unavoidable cost inflation and allow us to continue delivering the quality, reliability and service standards associated with Rolawn. 

We will continue to monitor market conditions closely and will review this surcharge as soon as circumstances allow, providing reasonable notice of any changes. We recognise that any price increase is unwelcome, but this step is necessary to ensure the continuity and reliability of our operations during a period of ongoing uncertainty. 

We remain committed to providing the quality, reliability and service standards you expect from Rolawn, and we truly appreciate your understanding and continued support. 

If you have any questions, please contact our customer support team who will be happy to help.