timmmay: My roofer said because my roof slopes so much no need for the thicker gauge.
How much would cover tech 407 add to what's quoted as "heavy duty paper"?
Do I need to have put in the contract that any scratched or dented sheets of iron must be replaced?
Not sure I could check every screw, that's why you hire someone decent, so you don't have to.
What is swarf? Why do you have to blow it off each day?
Thanks for all the info Rick :)