Choose paver joint material for the installation system. Rigid grout and polymeric sand have different requirements and are not interchangeable.
Start with the base
A dry-set paving system and a bonded system behave differently. Specify the joints as part of the full design. Do not choose joint material only for its color.
Movement, drainage and stone dimensions affect the joint detail. Ask your installer to confirm the design before laying the first piece.
When grout can be specified
Grout can be part of a suitable bonded installation. It must match the stone, joint width and exposure. Movement joints require their specified treatment, not rigid grout.
A flexible paving bed generally needs a compatible joint system. Do not add rigid grout to dry-set work without an approved design.
When polymeric sand can be specified
Polymeric sand contains binders that activate according to the product instructions. Check approval for natural stone, the base type and expected moisture.
Minimum joint width and depth vary by product. A zero-width joint can prevent proper placement and activation. Remove surface residue before the specified water application.
Confirm these details
- Stone format and permitted joint spacing.
- Base type and drainage.
- Joint material compatibility.
- Application temperature and weather limits.
- Movement-joint locations.
- Cleaning and curing instructions.
Continue with the correct guide
Read polymeric sand application for product checks. Compare sand-set planning with bonded work on concrete.
Use the installation guide with your installer. Do not treat a general guide as a substitute for a site-specific joint design.
Questions and answers
Should travertine pavers always touch edge to edge?
No. Joint spacing must suit the stone and the specified installation system.
Can grout stop a weak base from moving?
No. Correct the support and drainage. Joint filler cannot repair an unsuitable base.
