I personally think the ceiling roof is the final height. I think like this. If I built a building that is 1,000 feet tall = 300 meters high to the roof, then I put up a spire or antenna that is 655 feet tall = 200 meters.
Now I have a skyscraper that is 500 meters tall, thats 1640 feet tall.
But I will always see the building as 1000 feet tall.
It might be nice to have a spire or antenna as a supplement rather than an observation deck atop the skyscraper, and you can count how high the building is the spire included, but the final height will be the height of the roof of any building.
I think Kanto who is a member here calls himself "roof height crusader" and I agree with him on this.
Now I have a skyscraper that is 500 meters tall, thats 1640 feet tall.
But I will always see the building as 1000 feet tall.
It might be nice to have a spire or antenna as a supplement rather than an observation deck atop the skyscraper, and you can count how high the building is the spire included, but the final height will be the height of the roof of any building.
I think Kanto who is a member here calls himself "roof height crusader" and I agree with him on this.