I am looking to connect my second floor downspout to the first floor gutter. In any sort of wind, the water misses the gutter completely and makes a big mess. I found the thread here very helpful for what I want to do but being new I cannot comment on it. What I cannot determine is if there is anything special I need to do to attach the downspout to the roof? Will 2 gutter screws at the top A style elbow be enough? I'm trying to avoid putting holes in the roof!
I ended up using 2 A style 45 degree elbows, since the standard 70 degree elbows were too much. I then connected the downspout and gutter with the appropriate tiny screws. It's pretty sturdy and tonight's expected wind storm+rain should be a good test.
I wish I could get the colors to match better -- I bought Linen, but I think I needed Almond. Oh well...