How to Read a Roof Estimate: Every Line Explained

Knowing how to read a roof estimate is the best way to compare quotes fairly and avoid surprises halfway through the job. A roof estimate can look like a single number with a few words attached, or like a long list of items and quantities. The second kind is far more useful. Here’s what each line should cover, what it means, and the questions to ask when a line is missing.

Start with the scope

Before the numbers, check that the estimate describes the job. It should say:

• Whether the old roof is being removed or covered over
• The type and brand of the new roof covering, and its color if you’ve chosen one
• The total size of the roof, usually in “squares,” where one square is 100 square feet
• The roof slopes and any special areas, such as low-slope sections over a porch

If two quotes list different square footage for the same house, ask why. Small differences are normal; big ones mean someone measured wrong or is pricing a different job.

Tear-off and disposal

This line covers removing the old roof covering, the old underlayment and often the old flashing and vents, then hauling it all away. It should say how many layers are coming off. Older homes sometimes have two layers of shingles, which takes longer and costs more to remove. Tile tear-off is heavier work than shingle tear-off and is usually priced separately.

Decking

The deck is the wood surface the roof is fastened to. Nobody can see its condition fully until the old roof is off, so this is where many surprise costs come from. A good estimate prices decking replacement per sheet, for example “replace damaged decking as needed at a set price per 4x8 sheet,” and may include an allowance for a set number of sheets. That way you know the cost of any rot before it’s found.

Watch for estimates that leave decking out entirely. It may look like the lower price, but the extra will turn up later.

Re-nailing the deck

Florida’s building code sets requirements for how the deck is fastened. The City of Orlando requires an affidavit at final inspection confirming how the deck was nailed, alongside the secondary water barrier. Your estimate should include re-nailing the existing deck to current code where needed.

Underlayment and secondary water barrier

The underlayment goes over the deck and under the roof covering. It’s the layer that actually keeps water out of the house when wind drives rain under shingles or tiles. Estimates should name the type of underlayment and say where any self-adhered membrane goes, such as in valleys, around penetrations or over the whole deck. In the City of Orlando, the dry-in inspection happens at this stage, before the finished covering goes on.

Drip edge and flashing

Drip edge is the metal strip along the roof edges that directs water into the gutters and protects the fascia. Flashing covers the joints where the roof meets walls, chimneys, skylights and other roofs. These are some of the most common leak points on any house.

A good estimate says whether flashing is being replaced or reused. Reusing old, rusted or bent flashing is a common way to cut the price, and a common source of leaks a few years later.

Vents, pipe boots and penetrations

Every pipe, vent and fan that comes through the roof needs a properly sealed boot or flashing. The estimate should list how many and whether they’re new. Rubber pipe boots crack in the Florida sun, so replacing them during a reroof is standard practice.

The roof covering

This is the part you’ll see: shingles, tile or metal. The estimate should name the product line, not just “architectural shingles,” along with the quantity in squares. For tile, it should say whether the existing tiles are being reused or replaced. For metal, look for the panel type, gauge and finish.

Permit, inspections and paperwork

The permit should be on the estimate as its own line. A reroof in the City of Orlando needs a dry-in inspection and a final inspection, and the job isn’t complete until it passes both. If the job is over $5,000, the City of Orlando and the City of Winter Park both require a recorded Notice of Commencement, and the estimate should say who prepares and records it.

Cleanup

Debris removal, gutter cleaning and a magnetic sweep for nails should all be listed. Cleanup sounds minor until you find roofing nails in your driveway for months.

Warranty

The estimate, or the contract that follows it, should explain two warranties: the manufacturer’s warranty on the materials and the contractor’s own warranty on the workmanship. Ask how long each lasts and what it covers.

Payment terms

Look at when payments are due. A deposit before work starts is common, with the balance due on completion. Be cautious about paying most of the price upfront.

Insurance claim jobs

If the work is part of an insurance claim, Florida’s rules for contractors working on insurance-related roof jobs call for an itemized, good-faith estimate before a repair agreement is signed. A contractor also can’t offer to waive your deductible or give you gifts or rebates tied to the claim. Our insurance claim documentation page explains how we handle those jobs.

Comparing estimates side by side

Line up the estimates and go item by item. Where one quote includes something another doesn’t, ask the second contractor whether it’s included, and get the answer in writing. Once every quote covers the same scope, the totals mean something.

Our own estimates follow the same layout described here, with each part of the job priced on its own line. Read more on our roof replacement page, or book a free inspection anywhere in Orlando, Winter Park or Kissimmee.