If you’ve lived on the Gold Coast for more than a year, you’ve already seen it. The dark streaks creeping down the front of your neighbour’s render. The green tinge on the north-facing wall that wasn’t there six months ago. The roof that looked brand new when the owners moved in and now looks like it’s been there for thirty years. It’s not that people aren’t looking after their homes. It’s that the Gold Coast climate is genuinely one of the harshest environments for external