Porphyry is a paving stone that is growing in popularity in the U.S.. Used for centuries in Europe and othe parts of the world, it makes an indelible impression on visitors from this country – unlike any other paving stone in the world. Porphyry is so desirable that post war concrete paver manufacturers haved tried for decades to duplicate its appearance.
Rapid post war growth is also to blame for the deterioration of the knowledge of how to set variable thickness paving stones like porphyry. Durable solutions like porphyry were sacrificed for speed and unskilled labor. These materials lack the beauty and durability of porphyry.
Guidelines for Choosing a Porphyry Installer:
- The installer must provide references for installations that have been in place for 5 or more years.
- The installer must have worked with variable thickness porphyry and not the templated mesh-mounted variety. Mesh mounts are not true porphyry in the traditional sense.
- The references provided should be reviewable. It is preferrable to be able to visit the sites in person, to see first hand how the workmanship is holding up.
- The installer should be able to set traditional porphyry designs like fans, arcs, and circles – as well as dimensional pavers in a running bond.
- Porphyry setting requires the use of string lines, particularly when setting pattens.
- An installer who claims that porphyry cannot be level or meet modern ADA standards
- An installer who wants to sort the stone or treat it like a gauged concrete paver
- An installer who tries switch the porphyry to another material
- An installer who does not use string lines.