I have learned different terms for the above. For example, the "roof" block and the "umbrella' block are the same thing, that is the right hand holds the weapon and the tip of the weapon points downward to the left. When the right hand holds the weapon and the weapon tip points downward to the right it's known as a "slanting" block, a "shoulder" block, a "wing" block, or in Filipino- a "Payong" block. The reality is that there are so many different names for the same movement it's hard to keep track. I suggest that you find the term that you like best and not worry about the dozen others. Just a suggestion.
Steve