Question - about painting the garage exterior

I thought I would ask..... I figured someone here would know...

When is it best to paint the exterior of a building?

The paint I have now is somewhere around 10 - 12 years old. Its not showing any signs of peeling or anything. But I'm trying to be proactive.

The siding on the house and garage is Fiber cement. Its currently white. I might change color to a beige.

Is it better to paint before peeling starts or does it not matter?




:coffee2: