Our house has hail damage to the roof. The insurance company has provided their estimate. We now have three estimates from contractors. The three estimates are from a list of contractors the adjuster identified - not endorsed.
The three estimates are wildly different in price but it does not appear in scope. The insurance company has identified a need for 52 sq of roofing removal and 57 sq necessary to cover the roof. All three bids are using 30 year dimensional shingles by different companies - GAF, Tamko and Owens Corning. (Reading through earlier posts, there is not a consensus on which is better.) Two have 15# felt and one has 30#. Only one has identified the number of nails per shingle - 4 - the others have not. The bids came in at $11,600, $9,860 and $7,400. The lower two are within the insurance estimate. Choosing the lower does not gain me money but I see no reason to cheat the insurance company if I can get the same quality of work for lower money. All are members of the BBB and I plan to check their records. Two have worked extensively in our neighborhood repairing roofs after this storm.
1) What can be making such a difference? Two have provided 3 tab estimates - which is what we have now. The difference in pricing between dimensional and 3 tab is very different. One has a $2,000 difference and the other a $700 difference. I am planning to ask about squares estimated to see if that is driving this.2) Is the felt difference important?
3) I have read of 4 and 6 nails recommended. I understand 6 would be better. How much better?4) What other questions should I focus on?