Metal roof install tips and tricks -- eave dripline string guide

In this video, I talk about a trick that helps you install a straight, neat metal roof -- running a string down the eave dripline as a guide. I also talk about the proper way to drive screws and setup your panel by pre-drilling and pre-installing butyl tape.
PLEASE DO NOT LEAVE AN IDIOTIC COMMENT TELLING ME I PUT THE SCREWS IN THE WRONG PLACE. The screws on these panels were placed carefully in accordance with manufacturer's specifications and warranty requirements. I talk about why that is important in this other video: • Metal roofing screws: ... . If you leave an idiotic comment about putting screws on the ribs, it will be deleted. I will no longer try to explain this over and over to people who do not take the time to properly research the topic or watch the other video.