Flat Roofing
Loading...
Loading...
The typical cost for flat roofing ranges from $3 to $6 per square foot in the United States. This price can vary significantly depending on the material chosen and the overall size of the roof.
Contractor? Create instant estimates with AI and win more jobs.
Try Now for free!What most Marietta customers get at each price point.
Basic flat roofing using more affordable materials.
Mid-grade flat roofing materials with better durability.
High-quality, long-lasting flat roofing materials or complex installations.
Click any value to edit, All fields are fully customisable
$2,063.68
Total Estimate Amount
MAX can make mistakes.
This is a Preliminary Estimate
This estimator provides a starting point based on typical jobs. Actual costs may vary based on site conditions, material availability, permit requirements, and other factors discovered during work. We recommend a site visit before providing final pricing to customers.
This estimate is based on typical job parameters. Review and adjust for your specific situation. Standard market rates for your region, mid-grade materials unless specified, standard business hours labor rates, typical job complexity without major complications, basic cleanup included in labor time.
Job complexity
Simple repairs cost less than full installations or replacements. Multi-step jobs requiring permits or inspections add to the total.
Material quality
Budget, mid-grade, and premium materials can swing the price significantly. Discuss options with your contractor to find the right balance.
Local labor rates
Labor costs vary by region, season, and demand. Urban areas and peak seasons typically have higher rates than rural or off-peak times.
Site conditions
Difficult access, older structures, code upgrades, or unexpected issues discovered during work can increase the final cost.
Every contractor prices differently. Create a free account to set custom labor rates, material markups, and default margins that match your business.
Compare local pros and get free quotes
Common questions about costs and estimates for this service.
The 25% Rule in roofing serves as a guideline for both homeowners and contractors. It suggests that if more than 25% of a roof's surface requires repair, it's often more cost-effective and a better long-term solution to consider a full roof replacement rather than attempting patchwork repairs.
To calculate the square footage of a flat roof, you measure the length and width of the roof surface and multiply these two dimensions together. For irregularly shaped roofs, you may need to divide the roof into several square or rectangular sections, calculate the area of each section, and then sum them up for the total square footage.
Common flat roofing materials include EPDM (Ethylene Propylene Diene Monomer), TPO (Thermoplastic Polyolefin), Modified Bitumen, and PVC (Polyvinyl Chloride). EPDM is often one of the more affordable options, potentially falling into the basic tier ($2.50-$6 per sq ft), while TPO and PVC typically range in the mid-range to premium tiers ($6-$15 per sq ft) due to their durability and performance characteristics.
Installing a new flat roof over an existing one (a 'layover' or 're-cover') can save money by eliminating the cost of tear-off and disposal of the old roof. However, this is only feasible if the existing roof deck is sound, structurally capable of supporting the added weight, and if local building codes permit the practice. If the existing roof is severely damaged or has drainage issues, a full tear-off is necessary.
For a 1,500-square-foot flat roof, the cost for a typical replacement, at $3 to $6 per square foot, would range from $4,500 to $9,000. However, if considering the full envelope of costs from basic to premium materials and installations ($2.50 to $15 per square foot), a 1,500-square-foot flat roof replacement could cost anywhere from $3,750 to $22,500.