NBS Source
LimeTreePit Natural UV System


Suitable for pedestrian and low vehicular traffic.


A natural, permeable aggregate surface surround for planted trees. The structure allows rainwater to pass through, being Sustainable Drainage System (SuDS)-compliant.

Edgings created from brick, stone, timber or steel should be installed to retain and protect the system, and prolong its lifespan.

Features and benefits:

  • Ultraviolet (UV)-resistant resin; will not discolour nor degrade.
  • Tested to slip-resistant BS 8204-6.
  • SuDS-compliant permeable paving: 850 L/m²/minute.
  • Natural and recycled aggregate available.
  • Low maintenance.
  • Installation depth of 40–50 mm.
  • All aggregates selected to reduce the chances of rust appearing.
  • Optimized ratio of resin to aggregate mix blends, in line with industry standards.
  • Foot traffic after 14–15 hours at 20°C.
  • Manufactured UKAS ISO 9001 in line with the guidance notes published by the Resin Bound Technical Committee as part of FeRFA: the Resin Flooring Association.

General information


Various. Refer to manufacturer mix bend sheets.


UV Resin and aggregate

Uniclass 2015

Ss_45_35_05_66 Pit-planted large tree systemsPrimary


Q31/505 Tree pits

Specification data - Pit-planted large tree systems Enhanced data

Tree pit surfacing


Loose fill tree pit surfacing

Compacted no-fines gravel. Minimum depth 100 mm

Bound tree pit surfacing

Minimum depth 40 mm. Graded depth up to tree and exposed roots

Tree grilles and surrounds

Not applicable.

Protective tree collar, 50 mm minimum clearance. Loose aggregate to match.

Protective tree collar, 50 mm minimum clearance. Lower ration resin/ aggregate mix.

To allow for tree growth.

Product Reference

LimeTreePit Natural UV System

LimeTreePit thickness

40 mm.

50 mm.


Dior 10 mm.

Espresso 10 mm.

Honey gold 10 mm.

Honey pebble 10 mm.

Marscape 10 mm.

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Environmental information

Country of material origin

United Kingdom

Third party certifications

  • FeRFA: UKAS ISO9001

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