If you were to perform a Google search for “truncated domes”, “tactile pavers”, or “detectable warnings” you’d most likely come across hundreds of thousands of results. Many of them will be for a plastic product, while others could be for granite, marble, brick, and a liquid form.
So a question begs, how easy is it to replace a section if it’s damaged by UV rays or everyday use?
The answer is pretty straightforward: unless you order and install a cast-in-place replaceable system, it’s going to be difficult and costly.
By now you know truncated domes/pavers come in a variety of sheet sizes ranging from 2×3’ to 24×24’. The main reason behind this is due to the inevitability of one or all of your paver sheets needing replacement within a two year span (depending on rate of use). Brick, marble, liquid, and granite pavers statistically will last much longer than plastic, but still are not immune to damage.
Problems start to happen soon as the contractor places the pavers into the concrete to let them set. Two or three years down the road, the only way to replace sheets of pavers is to break apart the concrete. This is not true for replaceable pavers. When installing this type of truncated dome, a base plate is set into the concrete, and another separate plate (the paver) is secured to the base plate, usually by screws. This makes replacing pavers a few years down the road much easier and cost effective.