System · No-dig tree root protection
CORE TRP
Build above existing ground while protecting retained tree roots.
CORE TRP is CORE’s branded no-dig tree root protection system for paths, drives, parking and access within root protection areas. CORE TRP Panels distribute load above the existing ground while the permeable build-up helps maintain water and oxygen movement.
CORE TRP PANELS · INSTALLATION PHOTOGRAPHWhat it is
CORE TRP is CORE’s branded no-dig tree root protection system for paths, drives, parking and access within root protection areas. CORE TRP Panels distribute load above the existing ground while the permeable build-up helps maintain water and oxygen movement.
BRANDED SYSTEM COMPONENTCORE TRP PanelsCORE TRP Panels are a named component of the branded CORE TRP system, used with the specified TRP membrane, infill, surface and edge details.View CORE TRP PanelsSuitable for
- Driveways near retained trees
- Paths and access
- Parking within RPAs
- Public realm around existing trees
Common applications
- No-dig access
- Permeable parking
- Pedestrian routes
- Temporary root protection
How it works
- 01
The specified CORE TRP membrane protects the existing ground while maintaining the required interface.
- 02
CORE TRP Panels distribute load through a stable, free-draining layer.
- 03
The surface and edging are detailed to minimise excavation.
CORE TRP: installation and application
Typical build-up
The layers vary by project. This diagram shows their relationship, not a fixed specification.
- 01Existing ground and retained roots
- 02CORE TRP 10 Membrane where specified
- 03CORE TRP Panels
- 04Clean angular infill
- 05Permeable surface and low-disturbance edge
Illustrative system only. Final build-up depends on loading, formation, levels and drainage information.
Project information
Send what you have. We will identify any important gaps.
Submit project information- 01Arboricultural report
- 02RPA plan and constraints
- 03Existing and proposed levels
- 04Surface finish
- 05Vehicle type and frequency
- 06Drainage information
Before you specify
No single product makes a proposal compliant.
Final acceptance rests with the relevant project professionals and approving authority.
Products in the build-up
These products may be used alongside CORE TRP Panels, depending on the formation, loading, drainage and finish.
Clean angular infill
Discuss this componentCORE DRIVE, CORE COMMERCIAL or another permeable finish
View productLow-disturbance edging
Discuss this component
Relevant CORE project
Tree root protection beneath new paths at Barnard Park
760 m² of CORE TRP and 110 linear metres of CORE PRO EDGE supported Blakedown Landscapes’ path improvements at Barnard Park.
Islington Council · Islington, LondonView the CORE case studyQuestions
Is CORE TRP the same as CORE GEOCELL?
No. CORE TRP is its own branded system and is supplied as CORE TRP components, including CORE TRP Panels and CORE TRP 10 Membrane. It should not be described as CORE GEOCELL.
Why is CORE TRP described as no-dig?
The build-up is intended to sit above existing ground within a root protection area, reducing excavation and disturbance. The exact approach must follow the arboricultural strategy.
Who approves a tree root protection build-up?
The project arboriculturist and relevant approving authority should review the proposal where required. A product recommendation does not replace their role.
Technical project support
Tell us about your project
Send us your brief, drawings or site information. Our technical team will help identify the right CORE product or system and the information needed to move the project forward.
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