Where should the satellite dish be installed?

For a bungalow, where should the satellite dish be installed? On the facade wall or on the roof?

Best regards

At my place, garage back wall. If something comes up, I'll reach it with a step ladder.

I have them on the back wall of the garage because:

If something happens, I can reach them with a step ladder.

It depends a bit on the orientation. But I would basically not do the facade, it just doesn't look nice. I would always do it so that the SAT antenna is as little visible as possible. And that often works best on the roof. Either next to a dormer, a chimney, or similar. Of course, it should be noted that the antenna has a "clear view" towards the satellite. The argument "if you ever have to get to it" I would treat as secondary. If the system is installed properly, you won't have to touch it for the next 15-20 years.

Either next to a dormer, a chimney, or similar.

The chimney sweep has something against the chimney.

The facade has the advantage that it can be installed there in the area not at risk of lightning protection, and thus the lightning current-capable grounding can be omitted. On the roof, it looks completely different.