top of page
Big Ban.jpeg

Blog Post

Specialist in all aspects of Concrete Waterproofing,  Basement Tanking and Roofing Repairs. 

Search

Mastic Asphalt vs Felt Roofing: A Roofing Material Comparison

Choosing the right roofing material is crucial for any flat roof project. It affects durability, maintenance, and overall cost. Two popular options are mastic asphalt and felt roofing. Both have their strengths and weaknesses. I want to help you understand these better so you can make an informed decision. Let’s dive into the details and compare these two roofing materials.


Understanding the Roofing Material Comparison


When comparing roofing materials, it’s important to look at several factors. These include durability, installation process, cost, maintenance, and environmental impact. Both mastic asphalt and felt roofing are widely used in London, Kent, and the South East. They suit different needs and budgets.


Mastic asphalt is a hard, durable material made from bitumen, sand, and limestone. It’s heated and applied hot, creating a seamless, waterproof surface. Felt roofing, on the other hand, consists of layers of bitumen-saturated felt sheets. These are laid in overlapping layers and sealed with hot bitumen or adhesives.


Both materials provide waterproofing, but their application and lifespan differ. Mastic asphalt tends to be more robust and long-lasting. Felt roofing is more flexible and easier to install but may require more frequent maintenance.


Close-up view of mastic asphalt roofing surface showing texture and finish
Close-up view of mastic asphalt roofing surface showing texture and finish

Key Differences Between Mastic Asphalt and Felt Roofing


Let’s break down the main differences to help you see which might suit your project better.


Durability and Lifespan


Mastic asphalt is known for its exceptional durability. It can last 30 to 50 years with proper care. It resists weathering, UV rays, and foot traffic well. This makes it ideal for roofs that see regular use or harsh conditions.


Felt roofing typically lasts 10 to 20 years. It is more prone to damage from sharp objects and extreme weather. However, modern felt systems with multiple layers and protective coatings have improved longevity.


Installation Process


Mastic asphalt requires skilled professionals for installation. The material is heated to a high temperature and applied in layers. This process takes longer and can be more disruptive. However, the result is a seamless, tough surface.


Felt roofing is quicker and easier to install. Sheets are rolled out and sealed with bitumen or adhesives. This makes it a popular choice for projects with tight timelines or budgets.


Cost Considerations


Mastic asphalt is generally more expensive upfront. The material cost and specialist labour add to the price. However, its long lifespan can make it more cost-effective over time.


Felt roofing is more affordable initially. It suits projects with limited budgets or where replacement is planned within 10-15 years.


Maintenance Needs


Mastic asphalt requires minimal maintenance. Occasional inspections and minor repairs keep it in good shape. Its seamless nature reduces leak risks.


Felt roofing needs more regular checks. Overlapping sheets can lift or crack, allowing water ingress. Prompt repairs are essential to avoid bigger problems.


Environmental Impact


Both materials use bitumen, a petroleum product. However, mastic asphalt’s long lifespan means fewer replacements and less waste. Felt roofing’s shorter life means more frequent disposal and replacement.


Recycling options for both materials are limited but improving. Choosing a reputable installer who follows environmental guidelines helps reduce impact.


What is the best material for a flat roof in the UK?


In the UK, weather conditions are a major factor in roofing choices. Rain, wind, and temperature changes demand robust waterproofing. Both mastic asphalt and felt roofing are suitable for flat roofs here, but the choice depends on specific needs.


If you want a long-lasting, low-maintenance roof, mastic asphalt is often the best option. It handles the UK climate well and offers excellent protection. It’s especially good for roofs with heavy foot traffic or complex shapes.


Felt roofing is a good choice for smaller budgets or temporary solutions. It’s easier to install and repair. For many residential properties, high-quality felt roofing provides reliable protection for years.


Consider the building’s use, budget, and expected lifespan when choosing. Consulting with experienced roofing professionals can help you decide the best fit.


Eye-level view of flat roof with felt roofing installation in progress
Eye-level view of flat roof with felt roofing installation in progress

Practical Tips for Choosing and Maintaining Your Roof


Here are some practical tips to help you get the most from your roofing material:


  • Get professional advice: Always consult with experienced roofing contractors. They can assess your building and recommend the best material.

  • Consider long-term costs: Don’t just look at upfront price. Factor in maintenance, repairs, and lifespan.

  • Schedule regular inspections: Whether you choose mastic asphalt or felt, regular checks catch problems early.

  • Keep the roof clean: Remove debris and ensure drainage is clear to prevent water pooling.

  • Act quickly on repairs: Small issues can become costly if ignored.

  • Choose quality materials: Don’t compromise on material quality to save money. It pays off in durability.


Why Choose Expert Asphalt Services for Your Roofing Needs?


Selecting the right roofing material is just the first step. Proper installation and ongoing care are equally important. That’s why working with a trusted specialist matters.


Elite Asphalt Services has a strong reputation across London, Kent, and the South East. Their expertise in asphalt waterproofing and roofing ensures your roof performs well for years. They understand local weather challenges and building regulations.


Whether you opt for mastic asphalt or felt roofing, professional installation guarantees the best results. Plus, they offer maintenance and repair services to keep your roof in top condition.


If you want to learn more about the differences and benefits, check out this detailed mastic asphalt vs felt roofing comparison.


Choosing the right roofing material is a big decision. But with the right information and expert help, you can protect your property effectively and confidently.

 
 
 

Comments

Rated 0 out of 5 stars.
No ratings yet

Add a rating

Specialist in Asphalt Step, Balcony and Roofing

Open Hours:

Mon-Fri: 7.30am - 5.30pm

Sat: 8.00am - 12.30pm

Sunday: Closed 

Location

115 Felstead Road, Orpington, Kent. BR6 9AD

Instagram

©2026 by Elite Asphalt Services.

bottom of page