How to Read a Roofing Quote, Line by Line

Three companies come out, measure the same roof, and hand you three numbers that are thousands of dollars apart. That spread is rarely about greed or a bargain. Most of the time it is because the three quotes describe three different jobs, and nothing on the page makes that obvious.

Here is what each line means and what a complete quote should say.

Squares and roof measurements

A square is 100 square feet of roof surface. A 2,400 square foot roof is 24 squares. The quote should state the square count, and ideally the waste allowance on top of it — cut waste on hips, valleys and rakes typically runs a few percent and more on a complex roof.

Why it matters: square count is the one number you can verify against every other quote you receive. If one company says 24 squares and another says 31 for the same house, one of them measured wrong, and you want to know which before you sign anything.

Tear-off or layover

This is the single largest legitimate reason two prices differ.

• Tear-off removes the existing roof down to the deck. The crew can see the sheathing, replace what is bad, and install a full underlayment system on clean wood.
• Layover installs new shingles over the existing layer. It is cheaper and faster. It also hides the deck, adds weight, and puts the new shingles on an uneven surface. Two layers already present means tear-off is the only option.

A quote that does not say which one you are buying is not a quote. If one bid is dramatically lower than the others, this line is the first place to look.

Decking replacement, priced per sheet

Nobody can see the sheathing under an intact roof. A good quote handles that honestly: it says something like decking replacement billed at a stated rate per 4x8 sheet, as needed, documented before installation.

What you are looking for is a unit rate agreed in advance. Without it, the conversation about rot happens on day one with the roof open and your negotiating position gone.

Nail count and nail zone

This is the line most homeowners have never seen and the one that decides whether a wind warranty means anything.

Every architectural shingle has a wind rating printed on the wrapper. That rating is conditional. To earn the higher figure, most manufacturers require six nails per shingle placed in a defined nail zone on the shingle face, not four, and not wherever the gun lands. Nails driven high, driven at an angle, overdriven through the mat or underdriven so the head stands proud all void the same coverage.

A quote that specifies nails per shingle is telling you the crew has read the installation instructions. A quote that does not may still be fine — but you have no way to know, and neither will anyone assessing a claim years from now.

Ice and water shield, and how far up

Self-adhering membrane at the eaves is what protects the house when meltwater backs up behind an ice dam. The relevant question is not whether it is included but how far up the slope it goes. The requirement is measured from the interior wall line, not from the edge of the roof, so on a low-pitch roof or a house with a deep overhang, one course of membrane may not reach far enough. On many Connecticut roofs that means two courses.

Valleys, sidewalls, chimneys and skylights are the other places membrane belongs. A quote should name them.

Drip edge, flashing and what gets reused

Drip edge is metal at the eaves and rakes that carries water off the deck and into the gutter instead of behind it. It is inexpensive and it is frequently left off cheap jobs.

Flashing is where the honest quotes separate from the optimistic ones. Ask specifically:

• Is chimney flashing new, or is the existing step flashing being reused?
• Are pipe boots being replaced?
• Is valley metal included, or are the valleys woven?

Reused flashing is not automatically wrong, but it should be a stated decision rather than a silent one.

Ventilation

Intake at the soffit and exhaust at the ridge is what keeps the deck dry and the shingles at the temperature they were designed for. Connecticut's freeze-thaw cycling is unforgiving of an attic that runs warm.

The quote should say what is going on: ridge vent in linear feet, whether existing soffit vents are being confirmed as open, and whether any old box vents or turbines are being removed. Adding a ridge vent while the intake stays blocked by insulation accomplishes very little.

Permit, disposal, and protection

The permit line matters for a second reason: only a contractor registered as a Home Improvement Contractor may pull it on your behalf, so its presence tells you something about who you are hiring.

Warranty, stated in two parts

There are always two warranties, and they cover different things.

Material warranty

This comes from the manufacturer and covers the product. Enhanced coverage — the kind that also covers installation — is generally only available through certified contractors and generally requires a specified system of components from that manufacturer, not a mix of whatever was on the truck.

Workmanship warranty

This comes from the contractor and covers the installation. Its term should be written on the quote in years. A verbal assurance is not a term.

What the code numbers add

Connecticut assigns every town an ultimate design wind speed and a ground snow load in Appendix AY of the 2022 state building code. In the towns we serve, wind is 120 or 125 mph and snow is 30 or 35 psf. Those figures shape how the roof covering has to be fastened and how the structure carries load, and we walk through them in The Two Code Numbers Every Connecticut Roof Must Meet.

One thing worth stating plainly, because it gets misquoted in sales conversations: the high-wind underlayment trigger in the code is keyed to Vasd, the nominal design wind speed, which works out to roughly 93 to 97 mph in these towns. It is not keyed to the 120 or 125 mph Vult figure. If someone quotes you extra underlayment on the grounds that your town is over 110 mph, the reasoning is wrong even if the product is fine.

Comparing three quotes without guessing

Put them side by side and fill in one grid: squares, tear-off or layover, decking rate per sheet, nails per shingle, courses of ice and water shield, drip edge yes or no, flashing new or reused, ridge vent linear feet, permit, disposal, workmanship warranty term.

Any blank cell is a question, not a judgment. Ask for the missing item in writing. Two things usually happen: the low bid gains a few items and moves up, or it stays low and you now know exactly what you are giving up for the savings. Either outcome is a decision you can defend.

For context on where the totals typically land, see How Much Does a New Roof Cost in Connecticut?, and for what happens in what order once work starts, our roofing process lays out each step.

Getting a quote you can actually read

We itemize the lines above because a homeowner spending five figures should be able to check the work against the paper. If you want a written price, someone from our team comes out, measures the roof, inspects what can be seen, and gives you an itemized quote you can set next to anyone else's.

Request a free estimate, or read more about our roof replacement work.