Regional SuDS Contacts:

Igor Skoro – Scotland, North England, North Midlands & North Wales

07860 204893      iskoro@fpmccann.co.uk

Angad Flora – South England, South Midlands & South Wales

07849 628747      aflora@fpmccann.co.uk

Michael Hassan – NI & ROI

078 0955 3040        mhassan@fpmccann.co.uk

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SuDS DECISION TREE

SuDS Vs Vegetating System?

WHY CHOOSE PRECAST CONCRETE FOR SuDS?

Superior durability

Unlike alternative materials, precast concrete gains strength over time through ongoing hydration and carbonation. Resulting in SuDS systems becoming stronger and more durable as they age, increasing structural integrity and performance.

In contrast, plastic pipes and chambers typically deteriorate in strength as they age, with UV exposure, chemical attack, and stress fatigue gradually reducing structural capacity, increasing the risk of deformation. Making precast concrete the superior choice for long-term drainage infrastructure.

Precast concrete SuDS products provide superior structural integrity and load-bearing capacity, making them suitable for installation beneath roads, car parks, hardstanding areas, and locations subject to heavy traffic loading. Concrete attenuation tanks, chambers, and pipes maintain their structural shape and integrity under load, whereas flexible plastic systems are prone to deformation.

Particularly valuable in highway drainage applications, commercial developments, and industrial sites. Precast concrete systems provide the structural confidence essential for these demanding applications.

Whole life value

Precast concrete SuDS systems offer exceptional durability and longevity, with a proven design life exceeding 100 years in typical drainage applications. Representing more than double the design life of plastic SuDS alternatives (typically  25-40 year design lives). SuDS eliminate the need for premature replacement and delivering superior whole-life value.

Precast concrete SuDS systems offer significant environmental advantages over plastic alternatives. Concrete is a natural material manufactured from locally sourced aggregates and cement, with lower embodied carbon than many plastic products when assessed over full lifecycle including manufacturing, transport, installation, and eventual replacement.

Concrete is also fully recyclable at the end of life, with demolished concrete crushed and reused as aggregate, whereas plastic drainage products typically end up in landfill.

While initial costs of precast concrete and plastic SuDS systems may be comparable, whole-life cost analysis consistently demonstrates the superior value of concrete systems. The 100+-year design life of concrete eliminates replacement costs associated with shorter-life alternatives.

Regulatory compliance

FP McCann’s precast concrete SuDS products are manufactured in purpose-built factories under controlled conditions with rigorous quality control, ensuring consistent product quality, precise dimensions, and compliance with British Standards. Every element is manufactured to exact specifications, tested and certified, and delivered with full traceability, providing assurance that SuDS systems will perform as designed, eliminating the variability inherent in site-assembled systems.

FP McCann’s precast concrete SuDS products are manufactured to comply with relevant British Standards, including BS EN 1917 for concrete manholes and inspection chambers, BS 5911 for concrete pipes and ancillary products, and BS EN 752 for drain and sewer systems. This standards compliance ensures products are suitable for adoption by water companies and local authorities under Sewers for Adoption 7th Edition and meet the technical requirements of Building Regulations and planning conditions.

Products are supplied with comprehensive certification documenting compliance, test results, and traceability, providing the documentation essential for building control approval, water company adoption, and warranty compliance.

SUSTAINABLE DRAINAGE (SuDS) PRODUCTS