Using sandstone paver for a path or a patio is a cheap alternative to using natural stone. Generally it will last for many years, but sometimes there will be problems. Knowing how to troubleshoot problems with sandstone paver can save you a great deal of trouble and money.
When sandstone paver was first used it would sometimes crack after heavy frosts or ice. This was due to the companies quarrying soft stone. Over the years the quality has improved, although it’s not always perfect. If the paver cracks, it will need to be replaced because this cannot be fixed properly and will be liable to further cracking in bitter weather.,
If weeds grow between the sandstone pavers, they have been laid in a bed of sand. This is a bad choice for several different reasons. Not only does it allow things like weeds to grow, it also makes the pavers uneven. It doesn't look good and can also be dangerous. The solution is to take up the pavers, remove the sand, and re-lay the sandstone pavers. Use the proper wet cement mix and fix them into place.
The corners of a sandstone paver can be the weak point. They can chip quite easily and that affects the look of the path or patio. Point the corners carefully before grouting to ensure the grout is level with the pavers and butted completely up against it.
The sealer is supposed to be watertight, but you might find that it doesn’t take in some spots. It can flake off, depending on the density of the sandstone paver. If you find sealer flaking or peeling off sandstone paver, don’t try to replace it. Sealer doesn’t work well. When laying the pavers, consider skipping the sealing step. The flaking will generally occur when epoxy or urethane sealer has been used.
If you have a stain, such as red wine, on the sandstone paver, the easiest way to eliminate the problem is to let Mother Nature do its work. Over time, rain and snow will take the stain out of the sandstone. There is no simple way to remove it because sandstone is porous. Begin by putting water on the stain to dilute it. If you scrub the sandstone, do it gently.
If the distances between the pavers seem to be uneven, check the taper on each stone. The narrow part of the taper should always be at the top, with the wider part at the bottom. This will give a better look and also keep the sandstone paver stable.