How Much Does It Cost To Replace A Flat Roof?

Posted on July 25, 2024

Estimated Reading Time : 5 Min.

Share Now :
flat roof replacement cost

To keep a building in good condition there will come a point when you have to replace its roof. Whether it’s weather damage, wear and tear, or the roof has reached the end of its lifespan, a replacement may be necessary in order to get the best protection and performance from your roofing system.

Knowing the costs involved when it comes to a roof replacement helps property owners plan and make informed choices to protect their investment and keep the property safe and functional.

To help you out, this blog post offers information you need to know in regards to flat roof replacement costs.

*Please note that price ranges listed in this article may not reflect the final cost of your project. Prices are subject to change based on various factors such as local labor rates, material quality, and more. All costs established in this article are rough estimates based on average industry rates. 

What Is The Average Cost Of A Flat Roof Replacement In Buffalo?

Replacing a flat roof usually costs between $10,000 and $12,000, but it can change depending on how big the roof is, the condition it’s in, and where you live. 

Larger roofs require more materials and labor, which makes the replacement more expensive. If the roof is in terrible shape, it will also make the replacement more complex, increasing the total bill. 

The Average Price Range For A Roof Replacement 

The flat roof replacement cost generally ranges from $3 to $13 per square foot, covering materials and labor. However, high-end materials or intricate installations can increase costs to $15 per square foot or higher.

  • Low end: Approximately $4,500 (basic materials)
  • Average: Around $9,750 (mid-range materials)
  • High end: Up to $22,500 (premium materials or complex installations)

These figures are approximate, and actual costs vary based on specific project factors.

Also Read: Why Do Commercial Buildings Have Flat Roofs

The Factors Affecting The Cost Of A Flat Roof Replacement

#1. Roof Size and Square Footage

As noted before, the size of a flat roof has a significant impact on its cost. Larger roofs need more materials and labor, driving up the overall price. Roofs with complex designs or special features such as chimneys and skylights will also increase replacement costs.

#2. Permits and Inspections

In Buffalo, the permit cost for replacing a flat roof varies. There’s a $25 application fee and a fee for plan review, which is 20% of the permit fee, with a minimum of $25. The permit fee is $5 per $1,000 worth of construction, with a minimum amount of $50. 

#3. Condition of the Existing Roof

The condition of your current flat roof also affects the cost of replacement. A roof in poor condition needing extensive repairs or a complete tear-off will cost more than one in good shape needing only a simple overlay or partial replacement.

#4. Labor and Installation

Different roofing companies have different hourly rates for their contractors. This, paired with the length of the installation, will have a large effect on how much your roof replacement costs. The installation can span from a few days to a few weeks depending on the weather events and the type of roof you want replaced. 

#5. Tear-Off and Disposal

Removing and disposing of the old flat roof adds to the final cost of replacement. Roofers charge $3 to $7 per square foot in labor for tear-off, but some roofers do not include this as part of their replacement process. 

#6. Location and Accessibility

The cost of replacing your flat roof fluctuates by where you’re located due to regional differences in labor and material costs. 

Challenging locations, such as multi-story buildings or urban areas, frequently require specialized equipment and additional labor, raising costs. 

#7. Insulation

The cost of adding insulation for a flat roof replacement varies depending on the type and quality used. Fancy options like rigid foam or spray foam can cost up to $2 per square foot, whereas basic fiberglass batting costs between $0.30 and $1.50 per square foot. Since products like tapered insulation can influence and help with drainage on a flat roofing system, it’s a necessary cost that must be considered. 

Different Flat Roof Materials And Their Cost

Flat roofs require the use of different materials compared to their sloped counterparts. Since flat roofing materials have a role in the final cost of your replacement, here is a breakdown of how much different products cost: 

1. EPDM (Ethylene Propylene Diene Monomer):

Cost: $3.50 to $10 per square foot

EPDM (Ethylene Propylene Diene Monomer)

The most common option for flat roofing systems is EPDM, a synthetic rubber membrane known for its durability and flexibility. It resists UV rays and extreme temperatures, and provides a seamless finish and lasts up to 50 years with minimal maintenance.

2. TPO (Thermoplastic Olefin):

Cost: $4 to $10 per square foot

TPO (Thermoplastic Olefin)

TPO is a single-ply roofing membrane made of thermoplastic polyolefin. It’s energy-efficient, UV-resistant, and highly durable, with good puncture resistance, making it suitable for hot climates.

3. PVC (Polyvinyl Chloride):

Cost: $6 to $10 per square foot

PVC (Polyvinyl Chloride)

The next option is PVC, a durable thermoplastic material that resists chemicals, fire, and extreme temperatures. It’s also energy-efficient, UV-resistant, and capable of withstanding ponding water.

4. Built-Up Roofs (BUR):

Cost: $4 to $7 per square foot

Built-Up Roofs

Built-up roofs use layers of felt or fiberglass bonded with tar or asphalt for waterproofing. It’s durable and cost-effective, but also heavy to install and it can be challenging to locate leaks.

5. Modified Bitumen:

Cost: $4 to $7 per square foot

Modified Bitumen roof

Modified bitumen is asphalt-based and reinforced with polyester or fiberglass. It’s durable against punctures, tear-resistant, easy to install, and cost-effective. However, it does require regular maintenance.

Will Insurance Cover The Cost Of A Flat Roof Replacement?

Homeowner’s insurance can cover the cost of flat roof replacement, but the type of coverage they offer varies by policy. Generally, a replacement is covered if the roof sustains severe damage due to storms or other emergency scenarios. 

To qualify, homeowners must demonstrate that the type of damage qualifies for coverage, often through the use of professional roof inspections and photographic evidence. The insurance company then reviews the claim and estimates to determine whether the replacement is covered under their policy, sending an adjuster out to your property to confer. 

Also Read: How Long Does A Flat Roof Last

Replace Your Flat Roof With The Experts at OConnor Contracting 

Replacing a flat roof is a major investment that’s essential for preserving your home’s integrity and value. To plan, it’s crucial to understand the general costs associated with them, factors influencing pricing, and how to select the best roofing material. Obtain multiple quotes from reliable contractors, check the materials and installation methods, and prioritize quality and durability over cost. This approach ensures a successful replacement, securing enduring protection for your home.

For quality flat roof replacement services, trust OConnor Contracting. With years of experience and a dedication to quality, we deliver exceptional service with results that last for years. Whether it’s addressing structural repairs or material selection, our team ensures your needs are met with expertise. Choose us for a seamless flat roof replacement that safeguards your home with durability. Call us today at (716) 600-7663 to learn more.

flat roof replacement cost
Skip to content