Unlock the Secret to Long-Lasting Hardscapes: The Power of Interlock
Creating a hardscape that stands the test of time starts with understanding the importance of interlock. This is especially true for installations like driveways, patios, and walkways where stability is paramount. Let’s explore the three types of interlock essential for a durable hardscape and why specific techniques, tools, and materials, like ROMEX jointing systems and ISATec anchors, make all the difference.
1. Horizontal Interlock:
The Foundation of Stability
Horizontal interlock is achieved through the frictional forces that keep pavers from shifting side-to-side. This interlock serves as the bedrock of your hardscape’s stability and relies on both the installation technique and the laying pattern. Patterns like Herringbone are particularly effective as they distribute loads evenly, making them ideal for high-traffic areas such as driveways.
Pro Tip: Consider using ISATec anchors alongside Herringbone or other patterns. While Herringbone alone provides excellent stability, ISATec anchors can further reduce displacement by up to 70%, allowing you to achieve a wider variety of patterns without compromising structural integrity.
2. Vertical Interlock:
The Shield Against Displacement
Vertical interlock helps prevent pavers from sinking or rising by transferring loads across each unit. This is crucial for areas subjected to heavy loads, such as driveways. Using materials like ROMEX jointing systems enhances this interlock, helping create a cohesive, stable surface.
When it comes to porcelain, it’s essential to consider that porcelain lacks vertical interlock properties due to a shallow profile. If porcelain tiles are loose-laid without sufficient bedding, particularly in areas exposed to vehicle traffic, they may be at risk of displacement. However, when used with a stable ROMEX TRASS BED or similar support system, porcelain can become an effective and attractive choice for hardscapes.
Pro Tip: For a reliable installation with porcelain, use ROMEX TRASS BED, which enhances interlocking strength and stability, ensuring that even non-interlocking materials can handle heavy loads when properly supported, allowing for thinner/natural stone materials to be used.
3. Rotational Interlock:
Guarding Against Tilting and Shifting
Rotational inter lock prevents pavers from tilting under uneven loads. This is achieved by ensuring a tight fit between units. Patterns like Herringbone and Basket Weave increase rotational interlock, reducing the chances of individual pavers rotating or shifting over time.
For porcelain and other non-interlocking materials, it’s important to note that using wider spacers, such as those up to 10mm, does not compromise stability when paired with ROMEX TRASS BED and grout. Since these installations rely on the binding properties of the TRASS/elutriant and grout, the width of the spacer is less critical.
Pro Tip: If working with non-interlocking materials such as porcelain, using ROMEX TRASS BED allows you the flexibility of using wider spacers without compromising the stability or aesthetic of your hardscape.
Conclusion:
By addressing each of these interlock types and leveraging the right tools and techniques, you can create a hardscape that is both durable and versatile, able to withstand the elements and heavy use without sacrificing style.
