Shimming works, but if the trusses are really twisted or bowed, I’ve had better luck just sistering full-length 2x’s. It’s a pain pulling boards, but ...

That insurance bit is spot on—seen a few folks get tripped up by that after the fact. It’s wild how much more scrutiny green roofs get compared to so...

I've put zinc strips on a few shaded roofs, and honestly, they do help... but only right below the strip. You’ll still get streaks lower down if the r...