What are the best jointing materials for modular stone outdoor seating systems?

When designing modular stone outdoor seating systems, selecting the right jointing materials is crucial for durability, stability, and aesthetics. The best jointing materials for such systems include:

1. Polymeric Sand: Ideal for filling gaps between stone pavers, polymeric sand hardens when wet, preventing weed growth and insect infiltration while offering a clean finish.

2. Mortar Mix: A traditional choice for permanent installations, mortar provides strong adhesion and weather resistance, though it requires skilled application.

3. Flexible Jointing Compounds: These allow slight movement between stones, reducing cracking due to temperature changes or ground shifts.

4. Resin-Based Jointing Materials: Highly durable and resistant to erosion, resin-based options are perfect for high-traffic areas and harsh weather conditions.

5. Gravel or Decomposed Granite: A permeable and rustic option, suitable for informal seating arrangements, though it may require occasional maintenance.

For long-lasting results, consider climate, usage, and maintenance requirements when choosing jointing materials for your modular stone seating system.