EPDM roofing typically costs $43-$86 per square metre ($4-$8 per square foot) installed, with an average near $65 per square metre. Total price depends on roof size, membrane thickness, tear-off, insulation, access, and local labor rates.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| Installed EPDM | $43/m² | $65/m² | $86/m² | Standard flat or low-slope roof |
| Materials only | $16/m² | $27/m² | $38/m² | Membrane and basic adhesives |
| 100 m² roof installed | $4,300 | $6,500 | $8,600 | Before major repairs or upgrades |
Installed EPDM prices by roof size
For a straightforward roof with sound decking, standard black EPDM, and ordinary access, installation generally runs $43-$86 per square metre. A typical 100 m² project is about $4,300-$8,600, while a 200 m² roof is roughly $8,600-$17,200. Small jobs can cost more per metre because contractors may apply minimum charges.
Material-only pricing is usually $16-$38 per square metre, depending on membrane thickness and what accessories are included. The installed average of about $65 per square metre assumes professional labor and routine flashing work, not extensive insulation replacement or structural repairs. Assumptions: U.S. pricing, standard materials, sound decking, normal access, and no unusual code upgrades.
Budget around $65 per square metre for a basic installed EPDM roof, then add for removal, insulation, or repairs.
What membrane, labor, and removal add to the quote
Quotes vary in what they include. The table separates common charges; actual bids may group membrane, adhesive, and flashing together. Confirm whether listed prices include tax, disposal, edge metal, and warranty coverage.
| Quote component | Low | Average | High | Pricing basis |
|---|---|---|---|---|
| EPDM membrane | $16/m² | $27/m² | $38/m² | Material grade and thickness |
| Installation labor | $18/m² | $32/m² | $48/m² | Preparation and detailing |
| Adhesives and flashing | $5/m² | $10/m² | $18/m² | Seams, edges, penetrations |
| Tear-off and disposal | $8/m² | $16/m² | $27/m² | Existing roof layers |
These component ranges are not all additive at their maximums; contractors may price a complete system as a package. Ask for an itemized quote that identifies tear-off, insulation, flashing, and disposal separately.
How membrane thickness and roof shape change pricing
Common EPDM thicknesses include 45 mil and 60 mil. A 60-mil membrane often adds roughly $3-$10 per square metre over a comparable 45-mil product, although supplier pricing and system details affect the difference. Thicker material may be specified for durability or project requirements, but it does not correct poor drainage or damaged decking.
Roof geometry also matters. A clear, rectangular roof with few penetrations is faster to cover than one with skylights, pipes, parapets, or multiple transitions. Each curb or penetration can add about $75-$250 in detailing labor and materials. Deck repairs may run $20-$55 per square metre of affected area, depending on the substrate and access.
Thickness and detailing can shift a quote substantially even when the roof’s measured area stays the same.
How many labor hours does an EPDM roof take?
A two- or three-person crew may complete a simple 100 m² roof in one to three working days, including preparation and detailing. Tear-off, wet insulation, difficult access, or numerous penetrations can extend the schedule. Labor rates commonly fall around $50-$100 per worker-hour, with regional and contractor differences.
For a rough labor check, estimate crew hours and compare them with the labor portion of the quote. A bid that does not show hours may still be reasonable, but the contractor should explain whether labor includes tear-off, surface preparation, flashing, and cleanup. Compare labor scope, not just the hourly rate or total crew-day estimate.
Regional roofing rates across U.S. markets
Urban areas with higher wages and disposal fees may price 10%-25% above the national midpoint. Rural markets can be 5%-15% lower when contractors and materials are nearby, but remote delivery or limited crew availability can erase that saving. Severe-weather regions may also see temporary increases after storms create a backlog.
Request quotes from contractors familiar with local wind, drainage, and energy-code requirements. A lower bid may exclude code-required insulation or edge details, making its initial price difficult to compare with a complete system. Use local bids with matching specifications rather than a national average alone.
When tear-off, insulation, and drainage raise the total
Removing an existing roof commonly adds $8-$27 per square metre, including disposal, with extra charges possible for multiple layers or difficult access. New insulation may add roughly $15-$45 per square metre depending on type and thickness. Replacing wet insulation or damaged decking is usually priced after the old roof is opened.
Drainage corrections, tapered insulation, new edge metal, and roof penetrations can add hundreds or thousands of dollars to a project. A contractor may also charge a minimum service or mobilization fee for a small roof. Have the bid state how concealed water damage will be priced before work begins.
Which EPDM choices can lower the installed price?
Keeping sound insulation and decking in place can avoid substantial removal and replacement expenses, but only when the existing assembly is dry and suitable for reroofing. Combining nearby roof areas into one project may reduce repeated setup and delivery charges. Clearing access and moving rooftop items before the crew arrives can also limit paid preparation time.
Compare at least three quotes using the same membrane thickness, insulation scope, flashing details, tear-off plan, and warranty terms. Avoid selecting a thinner membrane solely for its lower initial cost, and skip upgrades that are not required by the roof design or local code. The most reliable savings come from controlling scope while keeping drainage and installation details intact.