Resin bound surfaces provide an attractive and seamless finish which is a fantastic way to add appeal to any property. Resin bound aggregate systems create excellent and durable surfaces such as driveways, paths, patios and more.
The finished surface is low maintenance, easy to clean and are also weed resistant. Resin bound surfaces are a SUDS Compliant Surface. They are permeable and allow water to drain through to the sub-base (which must also be permeable and SUDS compliant).
Despite having similar names, resin bound surfaces and resin bonded surfaces are completely different. Both systems use resin and aggregates to form fixed surfaces, but the differences are numerous.
Resin bound is the fastest growing surfacing solution in the UK, and it is being embraced by landscapers, developers and contractors nationwide. It is a system of laying a hardwearing course of mixed resin onto a new or existing bitmac or concrete base.
• The aggregate is mixed with the resin. The resulting material is trowelled onto the base for a smooth, flat finish with no loose gravel.
• The resin bound system is incredibly strong and durable and will remain so for many years thanks to its low maintenance needs.
• The finish you get is smooth and flat, with no loose gravel or aggregates.
• The porous surface of a resin bound system allows water to pass through to the ground beneath.
• Providing it is laid onto a permeable base, a resin bound system is a SUDS compliant solution.
• We offer a wide range of aggregate colours giving you near limitless design possibilities.
• A resin bound system is precise and flexible, allowing you to create stunning designs and shapes.
Resin bonded is a system in which the resin is spread across the base and the aggregate is scattered into it. Most of the aggregate will adhere to the resin, while some will remain loose. This gives the appearance of loose gravel. Because the aggregates are scattered onto a complete layer of resin, water cannot pass through, this means a resin bonded system is not porous. A resin bonded system is not a SUDS compliant solution.
What is SUDS?
SUDS is the Sustainable Urban Drainage System.
Most natural ground surfaces, such as grass and soil, are permeable. Built up areas are very different, featuring predominantly tarmac, asphalt and other kinds of paving. These are not permeable and surface water is unable to infiltrate the ground. The resulting surface runoff can cause a number of issues, including water pollution and flooding.
Why is SUDS important?
To tackle the above problems, new driveways and other surfaces have to comply with SUDS regulations. The Environment Agency strongly encourages the application of resin bound driveways and surfaces to help. This is why resin bound is ideal for parks, large drives, paths and playgrounds. SUDS regulations are one of the reasons resin bound systems have become increasingly popular, they are designed to be permeable and can be used in accordance with SUDS building regulations. Even if you do not live in an urban or built up area, a resin bound driveway is highly encouraged to prevent flooding.
Is a Resin Bound system SUDS compliant?
Yes, your Resin Bound surface will be SUDS compliant providing it is laid onto a porous base. This can be a special concrete or open textured Bitmac on top of a type 3 stone. Laying a resin bound system onto an impermeable base will not be SUDS compliant.
Resin bound aggregates include small gaps between each aggregate where water is able to infiltrate the ground beneath. A resin bound surface can handle 850 litres of water per square metre per minute.
The system can also be laid directly on top of old Bitmac or concrete, but it will require a suitable soak away or drainage flow. The existing surface must also be sound and free of cracks.
Is a Resin Bonded system SUDS compliant?
No, resin bonded systems are not SUDS compliant. This is because resin is applied directly onto a surface, usually Bitmac or concrete. This forms a complete layer of hardened resin, which water cannot pass through.
What does the UK Government say?
You will not need planning permission if a new or replacement driveway or any size uses permeable surfacing which allows water to drain through, such as gravel, permeable concrete block paving or porous asphalt, or if the rainwater is directed to a lawn or border to drain naturally.
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