Roofing Invoice Example: Squares, Layers, and Pitch

Short answer: A roofing invoice example bills roof surface, not the house footprint. This one sells 19.9 squares: 1,460 sq ft of plan area at 8/12 multiplied by 1.202, plus a 224 sq ft porch at 4/12 multiplied by 1.054. Tear-off is billed once per layer, decking carries the conditional unit price set before the job started, and ridge cap, drip edge, valley metal, and ice-and-water run by the linear foot.

Below is one finished replacement invoice: a hip-roofed ranch with a steep 8/12 main roof, a low-slope rear porch, two shed dormers, a masonry chimney, and a second layer of three-tab nobody knew about until the shovels went in. The general field checklist that belongs on any bill lives in what to include on an invoice. This page is the roofing half — where the squares came from, why tear-off repeats, and the seven lines homeowners call about.

What does a completed roofing invoice look like?

Every rate here is one shop’s number on one roof. Roofing dollars swing with disposal fees, insurance, labor market, and season, so copy the line structure and build the rates from your own costs the way roofing pricing guide lays out.

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INVOICE #2026-0731 · Issued August 11, 2026 · Balance due on receipt Cardin Roofing · License #RC-40218 Property: 91 Sherwood Lane · Permit #B-2026-3390, final inspection passed August 10 Proposal reference: P-2026-0611, signed July 21

Measurement: main roof 1,460 sq ft plan area (overhangs included) × 1.202 for 8/12 = 1,755 sq ft = 17.6 sq. Rear porch 224 sq ft × 1.054 for 4/12 = 236 sq ft = 2.3 sq. Total 19.9 squares. 66 bundles ordered against a 60-bundle net.

#	Description	Qty	Rate	Amount
1	Tear-off, first layer — main roof and porch, to the deck	19.9 sq	$62.00	$1,233.80
2	Tear-off, second layer — three-tab found under the laminate, main roof only, photographed 6:50 a.m. August 4	17.6 sq	$46.00	$809.60
3	Decking replacement — 7/16 in OSB, unit price per proposal line 9, sheet locations photographed	6 ea	$82.00	$492.00
4	Synthetic underlayment, full coverage	19.9 sq	$36.00	$716.40
5	Ice-and-water barrier — 132 lf at eaves, 58 lf in valleys	190 lf	$3.60	$684.00
6	Drip edge, 26 ga painted aluminum, eaves and rakes	188 lf	$2.90	$545.20
7	Valley metal, W-profile, open valleys	58 lf	$8.40	$487.20
8	Architectural shingles installed, starter course included	19.9 sq	$272.00	$5,412.80
9	Steep-slope allowance, 8/12 main roof — roof jacks, toe boards, bundles carried rather than staged	17.6 sq	$58.00	$1,020.80
10	Ridge vent — cut, install, and cap	38 lf	$13.00	$494.00
11	Hip and ridge cap shingles — four hips plus the ridge	96 lf	$7.60	$729.60
12	Chimney — cricket framed and flashed behind a 34 in chase, step flashing replaced, counterflashing cut into the mortar joint	1	$940.00	$940.00
13	Step flashing, two dormer sidewalls	44 lf	$9.20	$404.80
14	Pipe boots, replaced	3 ea	$52.00	$156.00
15	Disposal — 20 yd container, haul, magnet sweep of drive and beds	1	$655.00	$655.00
16	Permit and final inspection, at cost	1	$186.00	$186.00

Subtotal	$14,967.20
Deposit received at material delivery	−$4,500.00
Balance due	$10,467.20

Warranty — workmanship per contract; manufacturer certificate registered in the owner’s name. Not included — gutters, fascia and soffit, chimney masonry repointing, interior ceiling patching, and framing below the deck.

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Divide the total by squares before you send it: $14,967.20 over 19.9 squares is $752 per square. That is high for architectural shingles, and it should be — a second layer, an 8/12 slope, four hips of cap, and a chimney cricket are all on this roof.

Why does the invoice say 19.9 squares when the house is 1,308 sq ft?

Because the shingles go on the slope, and the slope is always longer than the ground under it. This house has 1,308 sq ft of conditioned floor area and 1,991 sq ft of roof.

Pitch	Multiplier	1,460 sq ft of plan area becomes
4/12	1.054	1,539 sq ft
6/12	1.118	1,632 sq ft
8/12	1.202	1,755 sq ft
12/12	1.414	2,064 sq ft

Pricing off the footprint understates the roof by 5 to 40 percent, and it is the most expensive arithmetic mistake in this trade — it happens before the first bundle is ordered and it never gets caught, because the shortfall shows up as a slow crew instead of a bad price.

Plan area is also not the floor plan. It includes the overhangs, so a 16 in eave on a hip roof adds real area on all four sides. Measure every plane separately: additions and porches frequently run a different slope than the main roof, and this one does.

Why is tear-off billed twice on the same roof?

Because each layer is a separate pass with a shovel and a separate load in the container. The second layer on line 2 covers the main roof only, at 17.6 squares, and it appears at the unit price that was written into proposal line 9 in July.

That is the difference between a conditional line and a surprise. The proposal named the price per square for a second layer, per sheet for decking, and per linear foot for rotted fascia, all before anybody signed. When the shovels found three-tab under the laminate, the crew photographed it at 6:50 a.m. and the rate was already agreed. Nobody negotiated on a torn-open roof.

Weigh your own tear-off loads for a season. Shingle weight per square is wildly different between light three-tab and heavy laminates, and the transfer station bills by the ton, so line 15 is guesswork until you have your own tickets.

Which roofing lines never scale with squares?

Anything that follows an edge or a hole in the roof. These items are the most commonly donated on a roofing invoice, because they get absorbed into a per-square rate that was never built to carry them.

Line	Unit	What drives the quantity
Ridge vent, hip and ridge cap	linear foot	Number of hips and ridge length, not area
Drip edge	linear foot	Eave plus rake footage
Ice-and-water barrier	linear foot or roll	Eaves, valleys, and low-slope tie-ins
Valley metal	linear foot	Roof geometry
Step and counterflashing	linear foot and each	Dormers, sidewalls, chimneys
Pipe boots, exhaust caps	each	Penetration count
Skylights, chimney crickets	each	Present or not

A cut-up hip roof with four dormers can carry double the cap and flashing of a simple gable with the same square count. Count the penetrations and pace the ridge on the walkthrough, then price them separately.

How do I build my own rate per square?

Start from your crew, not from a published average.

Time your crew over five jobs and get to hours per square for tear-off and for install, separately, and by slope. Multiply those hours by your fully burdened labor cost, which is wage plus payroll taxes, workers’ comp, and insurance, not the hourly you pay. Staging belongs in that cost as well: OSHA’s construction fall protection rule applies at six feet, and anchors, harnesses, and jacks are part of what line 9 pays for. Add field material per square: three bundles for most laminates, underlayment, nails at roughly 300 per square at four per shingle, and your waste factor. Add overhead per square by dividing last year’s fixed costs by the squares you actually installed.

Then add profit, and use margin math rather than markup math. Cost times 1.25 is a 25 percent markup and only a 20 percent margin. To hold a 25 percent margin, divide cost by 0.75. That gap repeats on every square of every roof for the rest of the year. Regional per-square averages are only a sanity check for a tenfold error; they are somebody else’s disposal fees and somebody else’s insurance.

How does a repair invoice differ from a replacement invoice?

A repair is not sold by the square at all. There is not enough area to spread setup across, so the invoice leads with a minimum visit charge, then bills materials by the piece.

A four-line repair invoice reads: minimum service call including the first hour and access, labor beyond that hour, materials by the piece (bundle, boot, tube of sealant, three feet of step flashing), and a clearly worded exclusion. That last one matters most. Write what the repair does not cover: “This repair addresses the valley at the rear dormer only. No warranty is offered on the remaining field, which is at end of life.” Repair work turns into a callback argument without that sentence.

Which lines get disputed, and how should they be written?

Almost every call is about a number the homeowner is reading for the first time. Wording settles most of them.

The line they call about	What they mean	Write it like this
19.9 squares	”My house is 1,308 square feet."	"1,460 sq ft plan × 1.202 (8/12) = 1,755, plus 224 × 1.054 (4/12) = 236. Total 1,991 sq ft = 19.9 sq.”
Second tear-off layer	”You should have known."	"Second layer found at tear-off, main roof only, photographed 6:50 a.m. Aug 4. Unit price set in proposal line 9.”
6 sheets of decking	”You are inventing rot.”	Number the photos by location and repeat the per-sheet price from the proposal
Steep-slope allowance	”It is the same shingle."	"8/12 requires roof jacks and toe boards. Bundles are carried up one at a time instead of staged on the deck.”
Hip and ridge cap, 96 lf	”That is just more shingles."	"Cap is installed one piece at a time across four hips and the ridge, over 96 feet.”
Disposal, $655	”You had a truck here anyway.”	Name the weight: two layers over 19.9 squares, transfer station bills by the ton
66 bundles for 60	”You bought too many."	"Hip roofs waste more. Every hip and valley cut leaves an offcut; this roof ran 10 percent.”

How do I explain the gap between the estimate and this invoice?

One sentence: the estimate priced work not yet done, and the invoice records what was done. Then make the paper prove it.

Keep the estimate’s line order and its exact wording, so nothing looks moved. Show both numbers wherever a measured quantity changed — “190 lf (quoted 175 lf)” — instead of quietly replacing one. Put the proposal number in the header, as this one does, so both documents tie together in October when somebody asks. Discovery items get their conditional unit price repeated, never a new price invented on the day. Collecting the agreed number is a separate skill, covered in how to get clients to pay.

What do I keep after the roofing invoice goes out?

Paper behind every line: the supplier ticket for 66 bundles and 190 feet of membrane, the OSB receipt, the container invoice, the scale ticket, the permit receipt, the 6:50 a.m. tear-off photos, and the deck photos numbered by location. Those same tickets are what your roofing business expenses deduction rests on at filing time.

Keel handles that end of it from the truck. The invoice goes out the afternoon the container is hauled, in about a minute, with your own numbering, your logo, your brand color, and the payment link printed as a QR code the homeowner scans off your screen. Supplier and transfer-station tickets get photographed at the counter and read on the device by Apple Intelligence — no account, no bank connection, no cloud, no login, and an App Store privacy label that reads Data Not Collected. Runs to the supply house log as mileage. The $4,500 that landed at material delivery was never spendable cash, which is what the Freeboard view exists to show: cash minus tax reserve, minus committed work, minus a buffer. At year end the Accountant Pack exports a CSV and a one-page summary, and the whole year leaves as one file. Free covers unlimited invoices, receipts, and mileage; Keel Pro is a one-time $249.99 Lifetime purchase, not a subscription.

Frequently asked questions

How do you calculate squares for a roofing invoice?

Measure the plan area of each roof plane including overhangs, multiply each by its own pitch factor, add the planes together, and divide by 100. This roof was 1,460 sq ft at 8/12 (×1.202) plus 224 sq ft at 4/12 (×1.054), giving 1,991 sq ft, or 19.9 squares. Add waste to the ordered material, not to the squares sold.

Should tear-off be a separate line on a roofing invoice?

Yes, and separately for each layer. Each layer is another pass with a shovel and another load in the container, and a second layer routinely appears only after the first one comes off. Set the per-square price for an additional layer in the proposal before the job starts, so the price is agreed and only the quantity is discovered.

How do I bill decking the homeowner never saw?

With a per-sheet unit price agreed in the proposal, a photograph of every location, and the sheet count on its own line. This invoice shows 6 sheets of 7/16 in OSB at the price named in proposal line 9. Pricing decking after the deck is exposed is the fastest route to a payment dispute in roofing.

What is a fair price per roofing square?

There is no single number worth quoting. This job ran $752 per square with two layers of tear-off, an 8/12 slope, four hips of cap, and a chimney cricket; a single-layer 4/12 gable in the same town would land far lower. Build your own rate from crew hours, material per square, overhead, and margin, then use per-square figures only to sanity-check your own history.

Do I charge extra for a steep roof?

Yes, on its own line, because the cost is real and the shingle is identical. Above roughly 7/12 the crew works off roof jacks and toe boards, bundles are carried up rather than staged, and production per square drops sharply. Line 9 on this invoice covers the main roof only at 17.6 squares; the 4/12 porch does not carry it.

How is a roof repair invoice different from a replacement?

A repair is billed from a minimum visit charge plus materials by the piece, not by the square, because there is no area to absorb setup, access, and travel. It also needs an explicit exclusion naming what was and was not repaired, and stating that no warranty extends to the rest of a roof at end of life. Replacements carry warranty and permit lines instead.

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This article is general information, not professional or tax advice.