For roofs that are ‘level’ , Ed’s (VA) comments are fine. Flowers comments work well for both a ‘level’ and sloped roof.
You can also experiment, especailly for a sloped roof of using a wall. Just size it to post dim and draw one out making it’s length equal to post dim. Copy it as needed and elevate it (up or down) to match post height.
If you place the ‘wall’ / post, on the same level as the roof, it will extend automatically, when set, to the roof.
Not the easist thing to do but another option.
Jack
it would be nice if people signed thier post.
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