EXAMPLE AT A GLANCE
This fictional Hobart, Tasmania low-slope roof membrane replacement example contains 7 itemised costs totalling A$20,921.86. Its app-exported PDF uses the exact metric quantities and AUD rates in the table, with scope assumptions and exclusions explained below.
Project scope: One low-slope extension roof
Replace the waterproof membrane on one accessible low-slope extension roof with defined edge and outlet details.
This original fictional example is set in Hobart, Tasmania. Harbour & Gum Projects and Alex Morgan are made-up parties. The matching Australian guide explains which measurements, product decisions and site conditions turn this brief into a client-ready quote.
- Example location
- Hobart, Tasmania
- Prepared by
- Harbour & Gum Projects · fictional business
- Prepared for
- Alex Morgan · fictional customer
- Issued / valid through
- 25 September 2026 / 25 October 2026
Itemised low-slope roof membrane replacement costs
These 7 AUD lines reproduce the native app export. Old membrane removal is measured as 39.02 m²; Deck preparation uses 39.02 m². Some lines are measured work while others are a product or site-task allowance. Read the unit before reusing the structure for a different job.
| Work item | Quantity | Unit rate | Amount |
|---|---|---|---|
| Access and temporary weathering | 1 job | A$802.75 | A$802.75 |
| Old membrane removal | 39.02 m² | A$80.00 | A$3,121.60 |
| Deck preparation | 39.02 m² | A$53.00 | A$2,068.06 |
| Membrane system allowance | 42.74 m² | A$146.00 | A$6,240.04 |
| Membrane installation | 39.02 m² | A$173.00 | A$6,750.46 |
| Upstands and outlet details | 1 job | A$1,420.25 | A$1,420.25 |
| Waste and final check | 1 job | A$518.70 | A$518.70 |
| Illustrative total | A$20,921.86 | ||
Product selection and installation should be clear from the descriptions. Confirm delivery, fixings, preparation, waste and any specialist trade responsibility for the actual job rather than assuming each allowance covers them.
Check the arithmetic
Old membrane removal: 39.02 m² × A$80.00 = A$3,121.60. Deck preparation: 39.02 m² × A$53.00 = A$2,068.06. All other lines use the same quantity-by-rate calculation and sum to A$20,921.86. Every fixture line lands on an exact cent, so the native PDF subtotal equals the displayed table total.
Measurement to check: Measure net roof area, upstands, penetrations, drainage falls and perimeter edge length. Selection to check: Identify membrane system, insulation if selected and outlet components separately. The PDF uses a 0% tax input only to make its fictional arithmetic visible. Confirm the GST treatment that applies to the actual job and set your own markup before sharing a client quote.
Assumptions and exclusions
Inspect deck condition after stripping and maintain temporary weather protection.
Outside this stated scope: No roof deck reconstruction, structural falls correction or interior repairs.
A wet or unsound deck changes replacement quantity and system specification. A changed condition should lead to a newly measured quantity, revised allowance or separately agreed task. Keep the client informed of the changed figure before producing another PDF.
Open the app-exported PDF
The document was exported from Estimates using the fictional business, client, dates, short PDF scope, notes and cost lines shown here. The image is the first-page preview. Open the complete PDF to check all entries; no rate is a current Hobart, Tasmania market claim.
Adapt this example to a real job
- Write the actual work boundary and site address; use this measurement basis: Measure net roof area, upstands, penetrations, drainage falls and perimeter edge length.
- Confirm products, access and handoff responsibilities; record this selection decision: Identify membrane system, insulation if selected and outlet components separately.
- Replace all fictional product, labour and subcontractor rates with your own evidence.
- Review quantities, extensions, total, GST and markup settings, client details and validity date.
- Preview every PDF page and share the quote with the agreed exclusions.
- 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.
Read the paired estimating guide for the project-specific scope and work sequence.
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 THE SCOPE INTO AN ITEMISED PDF
Make your own low-slope roof membrane replacement estimate.
Describe the actual job in Estimates on iPhone or Android or use AI assistance to start a draft. Check every measurement, quantity, rate, allowance, client detail and note before exporting your PDF. Some app features may require an in-app purchase.
