Are Resin Driveways Permeable?

One of the main selling points of resin bound driveways is their ability to allow water to drain through the surface. This feature, known as permeability, can reduce puddles, help manage rainwater runoff, and make planning approval easier in some situations.

The details in this guide are based on the knowledge of specialists in sustainable driveway design. For information on the installation process and surface options, see our page on resin bound driveway services.

Key Takeaways

• Resin bound driveways are permeable when laid over a suitable base.

• Permeability helps prevent puddles and manage surface water.

• The base layer plays a big role in drainage performance.

• Resin bonded driveways are not permeable.

What Permeability Means for Driveways

A permeable surface allows water to pass through instead of pooling on top. This can reduce flooding risk, improve safety in wet weather, and protect the surface from standing water damage.

Resin Bound vs. Resin Bonded Driveways

The term “resin driveway” is used for two different systems:

• Resin bound: Stones are mixed with resin and laid to create a smooth, continuous surface. Spaces between the stones allow water to drain through.

• Resin bonded: Resin is spread on the base and loose stones are scattered over the top. This creates a textured finish, but it is not permeable.

The Role of the Base Layer

Even the most permeable resin bound surface won’t drain properly if the base layer is impermeable. To achieve full permeability, resin is often laid over an open-graded tarmac or free-draining concrete base.

If the base is solid and non-porous, such as standard concrete, the driveway may still hold water unless extra drainage solutions are installed.

Benefits of a Permeable Resin Driveway

• Reduced surface water: Helps prevent puddles and icy patches in winter.

• Sustainable drainage: Can meet SuDS (Sustainable Drainage Systems) requirements, reducing the need for planning permission in some cases.

• Lower risk of flooding: Allows rainwater to soak into the ground naturally.

When Permeability Matters Most

Permeable driveways are especially valuable in areas with heavy rainfall, properties on slopes, or homes without direct street drainage. They are also a practical choice for gardens and landscapes where water runoff needs to be controlled.

Maintenance and Permeability

Keeping the surface clean is important to maintain drainage. Over time, dirt, moss, or algae can block the gaps between stones. Sweeping regularly and occasional washing will help keep the driveway draining effectively.

Summary

Resin bound driveways are permeable by design when paired with the right base. This makes them a practical and environmentally friendly choice for many homes. However, base preparation is just as important as the resin layer in ensuring effective drainage.