If these don't answer your questions - definitely ask us directly whatever is on your mind
What Roofing Material Should I Choose?
First step: how long do you plan to be in your home? If you know for sure it'll be less than 7 years, metal is not recommended as it is less likely you'll get the full value out of it.
There are many different levels of shingles from builder grade at the low end - designer at the high end. What do you want to get out of your next roof?
How does the warranty help me?
Frankly, whatever the warranty from the manufacturer, that warranty is best backed up by your contractor. You don't want to have to track down the manufacturer do you? Unless you love to be on hold? Ha we do too ;)
How Long Does a Roofing Project Take?
For shingle projects you can expect to see 1-3 days depending on the size of your roof