When we say a granite cobble surface lasts forty to fifty years and more, we are not describing the point at which it fails. We are describing the point at which most other surfaces have already been replaced twice.
What actually ages a paved surface
Three things: abrasion from traffic, thermal and moisture cycling in the material itself, and movement in the bedding below. Granite is close to inert on the first two. It is one of the hardest materials that will ever be walked on, and it neither absorbs enough water to matter nor expands enough to crack itself.
That leaves the bedding — which is to say, the lifespan of a granite surface is mostly a question of how well it was laid, not what it was laid with. This is why we care as much about the pattern and the pallet as the stone.
The part nobody plans for
Individual cobbles can be lifted and reset. A service trench through a granite drive is a morning's work and an invisible repair; the same trench through a poured or moulded surface is a permanent scar. Over four decades a surface will be opened up more than once, and the ability to put it back exactly is worth more than it sounds.
“Granite is not merely a paving material — it is an investment in permanence, prestige, and architectural excellence.”— Yorviaa Global Granitos
Fifty years from now the granite will be the oldest thing on the site that still looks the way it was meant to. That is the whole proposition.
