How to Read a Roofing Estimate (and Compare Three of Them Fairly)

The cheapest bid is usually cheapest because it is missing something, and the most expensive one is not automatically the most thorough. You cannot tell which is which until the estimates are described in the same units. Here is the vocabulary.

Squares, pitch, and why the math differs

Roofers price in squares — one square is 100 square feet of roof surface. A 2,000 square foot house does not have 20 squares, because roof area is bigger than floor area and grows with pitch. If three bids show different square counts for the same house, somebody measured badly, and that is worth asking about before anything else.

Pitch is the steepness, written as rise over 12 — 4/12 is walkable, 10/12 needs staging and takes longer. Steeper roofs cost more in labor, and any bid that does not seem to know your pitch was priced from an aerial photo rather than a visit.

Line items that should be there

• Tear-off and layer count. How many layers are coming off. Two layers is roughly double the disposal and labor of one, and it is a common source of a mid-job change order when nobody checked.
• Decking allowance. A per-sheet price for replacing rotten sheathing, with a stated number included. Vague decking language is the single most common way a bid grows after the roof is open.
• Underlayment and ice barrier. Where the membrane runs. “Ice and water at eaves and valleys” should be spelled out, not implied.
• New flashing and accessories. Drip edge, pipe boots, valley metal, ridge vent. Reusing twenty-year-old boots under a new roof is how a brand new roof leaks in year two.
• Permit and disposal. Both should be in the number, not a line you discover later.
• Cleanup. Magnet sweep of the lawn and street. It should be written down, because that is what makes it enforceable.
• Warranty terms. The labor term in years, in writing, plus the manufacturer coverage on the material.

What manufacturer warranties actually cover

There are two separate warranties and people conflate them constantly. The manufacturer warranty covers the shingles being defective — a rare event. The workmanship warranty covers the installation, which is where nearly every real problem comes from. A fifty-year shingle installed badly by a company that is gone in three years is a three-year roof.

Manufacturer coverage also generally assumes a complete system from one product line — starter, field, hip and ridge, and accessories. Mixing brands to save forty dollars is how coverage quietly stops applying.

Comparing bids that look nothing alike

1. Write down the square count from each. If they disagree by more than a square or two, ask each bidder how they measured.
2. Normalize to price per square, then note what each one includes at that price.
3. List what the cheap bid does not mention. That gap is usually the entire price difference.
4. Check the decking allowance side by side. This is where a low bid becomes the high bid on day two.
5. Ask each for a physical address, a certificate of insurance, and the written labor warranty term. Nebraska does not issue a statewide roofing license, so those three things are your real verification.

The insurance wrinkle

If this is a hail claim, the comparison changes. The adjuster's scope sets the dollars, so you are not really shopping price — you are choosing who does the work for the carrier's number and who will fight for a supplement when the first scope missed a slope, an extra layer, or the accessories.

One thing stays constant either way: anybody who offers to cover your deductible is committing insurance fraud in Nebraska, and they are doing it with your name on the claim.