1STARTING 3 TAB OnTRIANGLE POINT - HEL

NON STANDARD ROOF STARTING POINT, METHOD - HELP

One of my roofs starts at a point.
My question is, should I put a gap at the center of the point or the CENTER tab of 3 TAB, then work up until the roof had a standard horizontal line?
Can I add photos anywhere on this forum?
Thanks

Mark top of first single at the bottom, then measure and mark exposures from bottom up, snap horizontal lines from the top down on your marks. Square and snap a vertical off of your horizontal lines the entire length, then use your vertical as center or edge of a tab.

Thank you very much !!

Dave