PRE-BID CHALLENGE — 10 minutes, one person pokes holes

  [ ] Tear-off:  how many layers, and did we count them — or hope?
  [ ] Deck:      what if it's rotten under there? Any decking priced, or zero?
  [ ] Access:    did we walk it? Steep lot? Tight yard? Nowhere for the dumpster?
  [ ] Pitch:     steep-slope work priced, or bid like a walkable roof?
  [ ] The extras: chimney, skylights, valleys, ventilation — all in?
  [ ] Material:  is the price we bid this at still good on the day we roll?
  [ ] Haul-off:  dump fees at today's rate, and how many loads — counted or guessed?
  [ ] Paper:     permit and inspection fees in the number?
  [ ] Callback:  is this a customer or a detail that'll drag us back for free?
  [ ] Margin:    what are we actually bidding to on this one?

  Every risk we find → re-price it, or carry it on purpose.   Never meet it first on the roof.