Skip to content
Need a Renovation Cost Estimate?

How Much Does Spray Foam Roofing Cost (SPF)?

$3.50 – $7.00
Spray Foam Roofing Cost (SF)
$6,500 – $11,600
Average Total Spray Foam Roofing Cost
Get your renovation costs using Renotag's renovation cost calculator:

Key Takeaways

Cost per Square Foot$3.50 – $7.00 installed
Average Total Cost$6,500 – $11,600 to install
SPF AdvantagesQuick installation, seamless, energy-efficient, eco-friendly
SPF DisadvantagesRequires recoating, toxic fumes during installation, professional installation required
Spray foam roofing being applied to industrial building roof | How Much Does Spray Foam Roofing Cost?
Spray foam roofing being applied to industrial building roof | How Much Does Spray Foam Roofing Cost?

Spray Foam Roofing Cost

Spray Polyurethane Foam (SPF) roofing is gaining popularity due to its durability and energy efficiency. However, understanding the costs involved is crucial for budgeting and planning.

Cost Per Square Foot

The cost to install SPF roofing typically ranges from $3.50 to $7.00 per square foot. These costs include both materials and labor.

Average Total Cost to Install

For an average-sized roof, the total cost to install SPF roofing can vary widely. Here is a breakdown:

Roof Square FootageAverage Cost Installed
1,000$3,500 – $7,000
1,500$5,300 – $10,500
2,000$7,000 – $14,000
2,500$8,800 – $17,500
3,000$10,500 – $21,000
5,000$17,500 – $35,000

Average Cost of Foam Roof Replacement

The national average cost for installing spray foam roofing is around $9,100. However, the prices can range substantially based on the size and complexity of the roof:

National average cost$9,100
Minimum cost$3,500
Maximum cost$35,000
Average range$6,500 – $11,600

Spray Foam Roofing Cost Calculator

Calculating the exact cost of an SPF roof installation involves several factors, primarily the costs of materials and labor.

FactorCost per Square Foot
Foam Materials$1.50 – $3.00
Installation Labor$2.00 – $4.00
Total Cost to Replace$3.50 – $7.00
White roof top after a fresh coating | How Much does Spray Foam Roofing Cost?
White roof top after a fresh coating | How Much does Spray Foam Roofing Cost?

By breaking down these costs, homeowners can get a clearer picture of potential expenses.

Polyurea Roof Coating Cost

Polyurea coatings are sometimes used in conjunction with SPF roofing to provide additional protection against UV rays and moisture. The cost of polyurea roof coatings can range from $2.00 to $3.00 per square foot, adding to the overall expense but also extending the roof’s lifespan.

Foam Roof Maintenance Cost

Maintenance is a crucial aspect of ensuring the longevity and effectiveness of your SPF roof. Over time, recoating will be necessary, and this can be expected every 5 to 15 years. The cost for recoating can range from $1.00 to $3.00 per square foot, ensuring the roof remains sealed and efficient.

SPF Foam Cost Vs. TPO Vs. Shingles

When comparing SPF roofing to other roofing types like TPO (Thermoplastic Olefin) or traditional shingles, several points of consideration emerge:

  • SPF Roofing: $3.50 – $7.00 per square foot
  • TPO Roofing: $3.50 – $6.00 per square foot
  • Shingles: $1.50 – $5.50 per square foot

While shingles may appear less expensive initially, SPF and TPO offer better energy efficiency and longevity, potentially providing greater value over time.

SPF Roofing Pros and Cons

As with any roofing material, spray foam roofing comes with its share of advantages and disadvantages.


  • Quick Installation
  • Seamless; Conforms to All Roof Shapes
  • May Be Applied Directly Onto an Existing Roof
  • Provides a Thermal, Air, and Moisture Barrier
  • Energy-Efficient; 6.25 per Inch R-Value
  • Low Maintenance
  • Eco-Friendly
  • Long-Lasting
  • Lighter Than Other Roofs; Puts Less Stress on the Frame
  • Prevents Water Pooling When Installed Correctly
  • Reduces Thermal Shorts (No Metal Fastening Required)


  • Requires Recoating Every 5 to 15+ Years
  • Off-Gasses Toxic Fumes During Installation
  • Requires Skin, Eye, and Respiratory Protection to Install
  • May Require Vacating the Building During Installation
  • Future Renovations May Generate Harmful Dust
  • Small Installation Window Due to Temperature and Humidity Requirements
  • Must Be Installed on a Clean, Dry Surface
  • Installation and Repairs Require a Professional
  • Incorrect Installation May Cause Drainage Problems

SPF Foam Roof FAQs

What Is a Foam SPF Roof?

A foam SPF roof involves spraying a polyurethane foam directly onto the roof surface, which then expands to form a hard, seamless layer. This layer acts as an effective insulation and barrier against weather elements.

How Long Do Foam Roofs Last?

With proper maintenance, foam roofs can last 20 to 30 years or longer. Periodic recoating helps to maintain the roof’s integrity and extend its lifespan.

Is Foam Roofing Worth It?

Foam roofing offers a robust, long-lasting option for flat or low-slope roofs. Its excellent insulation properties can lead to significant energy savings, making it a cost-effective investment over time.

How Long Does Foam Roofing Take to Install?

Installation time can vary but typically takes 1 to 3 days, depending on the size and complexity of the roofing project.

Does a Spray Foam Roof Need to Be Vented?

Unlike traditional roofing methods, spray foam roofs do not require venting. The foam creates an airtight seal, eliminating the need for additional ventilation.

Getting Estimates from SPF Roofing Contractors

When planning for an SPF roofing project, getting detailed estimates from multiple contractors is vital. This helps ensure you get a fair price and understand the scope of the work involved.

Questions to Ask

  • What Are Your Qualifications and Experience with SPF Roofing?
  • Can You Provide a Detailed Estimate Break-Down?
  • Do You Offer Any Warranties or Guarantees on Your Work?
  • How Long Will the Installation Process Take?
  • What Precautions Do You Take to Ensure Safety During Installation?
  • How Often Will Recoating Be Required, and What Are the Costs?

Inquiring about these factors can help you make a more informed decision.

By keeping these points in mind, you can better manage the costs and expectations associated with SPF roofing, ensuring a successful and long-lasting installation.

Renotag's renovation cost calculator being used by a person to price their home renovation costs.
social proofs renotag
5K+ homeowners trust Renotag

Your renovation cost is waiting

The world's first renovation cost calculator.

Table of Contents

Calculate your reno price

Add your project details, choose your finishes, and get a price for your project – no contractor needed until construction time.