If you run your hand along an exterior wall and it comes away covered in fine white powder, that’s chalking. Here’s what it means and when it signals it’s time to repaint.

Black streaks on stucco or siding are usually algae, not mold. Here’s how to tell the difference and what it means for your next paint job.

If your exterior paint is cracking or peeling, the cause can range from ordinary age to a moisture problem underneath. Here’s how to tell which one you’re dealing with.