EXAMPLE AT A GLANCE
A flat roof membrane replacement example for one low-slope extension roof contains 7 itemized lines totaling $16,940.00 before tax or markup. The actual app PDF, measurement basis, project boundaries and a matching how-to guide are available here; every rate is fictional.
What this example covers
Replace the waterproof membrane on one accessible low-slope extension roof with defined edge and outlet details.
Use this example to see a complete document for one low-slope extension roof. The brief is tied to Nashville, Tennessee for a plausible project setting; the amounts are fictional input values and do not represent local market prices. The estimating guide explains the decisions behind these lines.
- Prepared by
- Cedar & Beam Builders · fictional business
- Prepared for
- Jordan Taylor · fictional customer
- Example project
- One low-slope extension roof
- Issued / valid through
- September 25, 2026 / October 25, 2026
Itemized flat roof membrane replacement example
These are the same quantities and unit prices used by the downloadable app PDF. A cost line can represent measured work, a selected product allowance or a distinct site task. Check which interpretation applies before replacing any amount.
| Work item | Quantity | Unit price | Amount |
|---|---|---|---|
| Access and temporary weathering | 1 job | $650.00 | $650.00 |
| Old membrane removal | 420 sq. ft. | $6.00 | $2,520.00 |
| Deck preparation | 420 sq. ft. | $4.00 | $1,680.00 |
| Membrane system allowance | 460 sq. ft. | $11.00 | $5,060.00 |
| Membrane installation | 420 sq. ft. | $13.00 | $5,460.00 |
| Upstands and outlet details | 1 job | $1,150.00 | $1,150.00 |
| Waste and final check | 1 job | $420.00 | $420.00 |
| Subtotal / example total | $16,940.00 | ||
How the subtotal is calculated
The example line for old membrane removal is 420 sq. ft. × $6.00 = $2,520.00. This line is one part of the complete 7-item estimate and uses a fictional unit rate.
The document sums the rounded line amounts to $16,940.00. Tax and markup are not included; a zero tax field in a sample document does not mean a real project is tax-exempt. Confirm the actual treatment for the job you are quoting.
Measurement to verify: Measure net roof area, upstands, penetrations, drainage falls and perimeter edge length. Selection to verify: Identify membrane system, insulation if selected and outlet components separately.
Assumptions and exclusions
Inspect deck condition after stripping and maintain temporary weather protection.
Outside the stated scope: No roof deck reconstruction, structural falls correction or interior repairs.
A wet or unsound deck changes replacement quantity and system specification. If the scope changes after a client reviews the estimate, update the relevant quantities, allowances and written exclusions before sharing a revised PDF.
Download the actual app PDF
The downloadable document was exported from Estimates using the fictional business, client, scope and cost lines shown above. The preview is its first page. Review the full PDF before using its layout or wording as a reference for your own estimate.
Build your own version
- Write the actual job boundary and measured quantities. Measurement basis to check: Measure net roof area, upstands, penetrations, drainage falls and perimeter edge length.
- Confirm products, access and handoff responsibilities. Selection decision to record: Identify membrane system, insulation if selected and outlet components separately.
- Replace every fictional rate with your own supplier, labor and subcontractor inputs.
- Add business and client details, set the appropriate tax and markup, then preview all PDF pages.
- Share the estimate with its exclusions and a clear validity date.
- Measure net roof area, upstands, penetrations, drainage falls and perimeter edge length.
- Identify membrane system, insulation if selected and outlet components separately.
- Inspect deck condition after stripping and maintain temporary weather protection.
- A wet or unsound deck changes replacement quantity and system specification.
Questions about this estimate
Which quantity controls this flat roof membrane replacement estimate?
Measure net roof area, upstands, penetrations, drainage falls and perimeter edge length.
When should this flat roof membrane replacement quote be revised?
A wet or unsound deck changes replacement quantity and system specification. No roof deck reconstruction, structural falls correction or interior repairs.
TURN THIS EXAMPLE INTO YOUR OWN ESTIMATE
Build a flat roof membrane replacement estimate for your project
Use Estimates on iPhone or Android to draft a scope with AI assistance or enter each line yourself. Review quantities, rates, exclusions, and client details before exporting a PDF. The example is free to inspect; some app features may require an in-app purchase.
