Render & Wall Coatings | Building Supplies

Render and wall coatings provide long-lasting protection against weather, moisture and surface damage while transforming the appearance of any property. From traditional finishes to modern silicone systems, these products offer excellent durability, breathability and colour retention. Ideal for new builds, refurbishments and commercial projects, our range delivers reliable performance with a clean, professional finish.

K Rend for High-Performance, Silicone-Based External Finishes

K Rend is one of the UK’s leading silicone render systems, offering outstanding breathability, flexibility and water repellence. Suitable for modern housing developments and refurbishment projects, K Rend provides a smooth, durable finish with excellent colour stability and minimal maintenance required.

Render Board for Strong, Stable Substrates on External Walls

Render board is designed to create a solid, stable base for external render applications. Lightweight yet strong, render board is moisture-resistant, easy to install and suitable for timber-frame and steel-frame buildings. It ensures a reliable substrate that prevents cracking and supports long-lasting render finishes.

Silicone Render for Flexible, Crack-Resistant Wall Finishes

Silicone render offers superior flexibility and water resistance compared to traditional render. It provides a smooth, self-cleaning finish that repels dirt and water while allowing walls to breathe. Silicone render is perfect for properties exposed to harsh weather or requiring long-term colour stability.

Render Products for Smooth, Protective External Coatings

Render materials provide strong adhesion, weather resistance and clean finishing for exterior walls. Available in monocouche, basecoat, thin coat, and traditional sand and cement options, render helps create durable surfaces that protect against rain, frost and everyday wear.

Long-Lasting Colour, Weather Protection and Low Maintenance

All render and wall coating options in our range are designed to withstand the UK climate, resist cracking, reduce algae growth and maintain their appearance for years with minimal upkeep.

FAQs

What is the benefit of using K Rend?

K Rend offers excellent water repellence, breathability and long-lasting colour, making it ideal for modern and traditional homes.

Do I always need a render board?

A render board is recommended when rendering over timber or steel frames to create a stable, crack-resistant surface.

Is silicone render better than standard render?

Yes — silicone render provides greater flexibility, water resistance and colour longevity compared to traditional render mixes.

Check out our other Building Supplies and Aggregates and Cement range at JJ Building Materials.