Skip to content
Need a Renovation Cost Estimate?

How Much Does A Modified Bitumen Roof Cost?

Get your renovation costs using Renotag's renovation cost calculator:
Key Takeaways
Cost Per Square Foot Installed: $4.00 – $7.50
Average Total Cost To Replace: $4,900 – $14,600
Typical Lifespan: 20 to 30 years
Pros: Durable, Flexible, Affordable, Water-resistant, Long Lifespan, Multiple Install Methods
Cons: Suitable Only For Flat Roofs, Potentially Dangerous Installation, Dark Absorbs Heat

Modified Bitumen Roof Cost

The cost of installing a modified bitumen roof can vary widely based on several factors, such as the size of the roof and the complexity of the installation process. Understanding these costs can help homeowners budget appropriately.

Modified Bitumen Roof Cost

Roof Size (Square Feet)Total Replacement Cost
1,000$4,100 – $6,600
1,200$4,950 – $7,900
1,500$5,900 – $9,800
1,700$7,000 – $11,100
2,000$8,300 – $12,700
2,500$10,400 – $15,900
3,000$12,500 – $19,100
3,500$14,500 – $21,800

Average Cost To Install A Modified Bitumen Roof

Average Cost DescriptionCost
National Average Cost$9,750
Minimum Cost$3,100
Maximum Cost$22,700
Average Range$4,900 to $14,600

Modified Bitumen Roofing Cost Per Square Foot

Understanding the cost per square foot helps in making better decisions regarding material and labor costs. Here is a breakdown.

FactorCost Per Square Foot
Old Roof Removal$1.00 – $1.30
Materials and Supplies$0.70 – $2.20
Installation Labor$2.30 – $4.00
Total Cost$4.00 – $7.50

Modified Bitumen Roofing Prices

Modified Bitumen Prices Per Roll

When purchasing modified bitumen by the roll, costs can vary based on the type of polymer and other factors.

Types Of Modified Bitumen Roofs By Polymer

Different types of polymers are used in modified bitumen roofing, influencing the overall cost and performance of the roof.

  • APP (Atactic Polypropylene): Known for strength and flexibility.
  • SBS (Styrene-Butadiene-Styrene): Provides rubber-like quality for better expansion and contraction.

Pros And Cons Of Modified Bitumen Roofing

Understanding the advantages and disadvantages of modified bitumen roofing can help in making a more informed decision.

DurableSuitable Only For Flat Roofs
FlexibleTorch-Down Method Can Be Dangerous
AffordableDark Rolls Absorb Heat In Summer
Water-ResistantVulnerable To Standing Water
Long LifespanExpensive If Using 2 To 3 Layers
Multiple Ways To Install

What Is Modified Bitumen Roofing?

Modified bitumen roofing is a type of asphalt product that uses polymer modifiers, offering enhanced durability and flexibility. It is widely used for flat or low-slope roofs and is known for its resistance to weather and impact.

How Long Does A Modified Bitumen Roof Last?

A modified bitumen roof typically lasts between 20 to 30 years, depending on the quality of installation and the type of maintenance performed.

Finding And Hiring A Roofing Contractor

Hiring a qualified roofing contractor is crucial for ensuring that your roof is installed correctly and performs well over its lifespan. Consider these steps:

  1. Research Potential Contractors: Look at reviews, ask for recommendations, and verify credentials.
  2. Get Multiple Quotes: Ensure that you receive a detailed estimate from each potential contractor.
  3. Check for Licensing and Insurance: Verify that your contractor has the proper licensing and insurance for your area.

Questions To Ask

When interviewing potential roofing contractors, consider asking the following questions:

  • Are you licensed and insured?
  • Can you provide references from past clients?
  • What is the timeline for the project?
  • What warranty do you offer on the materials and installation?
  • How do you handle unexpected issues during the project?

Understanding these facets of modified bitumen roofing can help you make an informed decision about whether this roofing material is right for your home. By factoring in costs, types, pros and cons, and knowing how to hire a contractor, you can ensure a successful roofing project.

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.