[quote=urbanrealtor]I think the termites even eat concrete here.[/quote]
When I was removing tile in the entry of our newly purchased home (built in 1980), I found live subter. termites using the grout lines for tunnels. The house had a planter under the stairs with no concrete below the dirt level. The tiles lined planter below the dirt level. Of course this was found after escrow. Our termite company gave us a deal on re-treatment due they missed some other termite-made tunnels in the garage.