Living near the Indian Ocean has its perks, but it also brings a quiet, persistent threat to buildings: salt. In coastal structural engineering in Perth, the real work often happens out of sight, in the choices made around concrete mix, steel protection, drainage details and routine upkeep. Salt doesn’t just “sit” on surfaces Perth’s sea breezes can carry fine salt particles well inland, where they settle on balconies, fixings, lintels and exposed concrete. Over time, that sa