Free draining sub base layer


Roadstone Permeabase granular material is a permeable material produced by means of blasting, crushing and screening into the required sizes.

When producing this material the aim is to always have a finished product which is clean, hard and durable and capable of performing as required in an engineering environment and in accordance with design requirements and specification.

Production is managed under our ISO 9001 Quality Management scheme with all locations having either System 2+ or 4 levels of attestation of conformity as appropriate.

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