A felt roof has been a familiar sight on UK homes for decades. From garden buildings to flat roofs on houses, it remains one of the most widely used roofing options. Homeowners often ask us one simple question: how long does a felt roof last?
The short answer is that a well-installed one can last many years. The longer answer depends on the type of felt, how it is fitted, and the conditions it faces. Below, we explain what to expect, how modern systems have improved, and what makes the biggest difference to lifespan.
What Is Felt Roofing?
Felt roofing is a layered material made from bitumen and reinforced fibres. It is laid in sheets and sealed to create a waterproof surface. Most roof systems are designed for flat or low-pitched roofs.
There are two main types you will come across:
- Traditional shed felt, often used on small buildings
- Modern torch-on felt systems, which are thicker and far more durable
Today’s products are very different from older versions. Materials are stronger, seams are tighter, and weather resistance is much better than it once was.
Why Many UK Property Owners Choose A Felt Roof
A felt roof remains popular for good reason. It offers a solid balance of cost, reliability, and ease of repair.
Common reasons people choose felt roofing include:
- Affordable installation compared to many alternatives
- Strong waterproof performance when fitted correctly
- Suitable for garages, extensions, dormers, and porches
- Straightforward repairs if damage occurs
For many properties, especially in towns like Exeter where flat roofs are common, felt roofing is a practical and sensible choice.
Benefits Of A Modern Felt Roof
Modern systems have raised expectations around how long a structure can last. When installed using current methods, the benefits are clear.
A modern installation offers:
- Better resistance to cracking and splitting
- Improved performance in heavy rain and wind
- Longer life compared to older felt products
- A neat, low-profile finish
Torch-on felt, in particular, has become the standard for domestic flat roofs due to its strength and consistency.
How Long Does A Felt Roof Last On Average?
In most cases, a felt roof will last between 10 and 20 years. Some last longer. Others fail sooner. The difference usually comes down to quality.
As a general guide:
- Basic felt roofs: around 10–12 years
- High-quality torch-on felt roofs: 15–20 years or more
With proper care and professional installation, it is not unusual to see one perform well beyond the lower end of this range.
What Affects The Lifespan Of A Felt Roof?
Several factors influence how long a felt roof will last. These are the points we pay closest attention to when installing or inspecting a roof.
Installation Quality
Poor fitting is one of the main causes of early failure. Weak joints, trapped moisture, or thin layers can shorten the life of a structure by years.
Materials Used
Thicker, reinforced felt lasts far longer than older or budget-grade materials. Modern systems are designed to cope with changing temperatures and movement.
Weather & Location
In Exeter and the Southwest, roofs face frequent rainfall, strong winds, and occasional coastal air. A structure must be installed with these conditions in mind.
Maintenance
Clearing debris, checking edges, and spotting small issues early can add years to a felt roof’s life.
Felt Roofing Updates For 2026
By 2026, felt roofing systems have continued to improve. Manufacturers now focus on durability, cleaner installation, and longer guarantees.
Current updates include:
- Multi-layer torch-on systems as standard
- Stronger reinforcement to reduce tearing
- Improved resistance to standing water
- Better performance in colder winters and warmer summers
Installation standards have also improved. We follow recognised UK trade guidance and work to best practice methods to ensure every structure performs as expected.
Felt Roof vs EPDM vs GRP
Below is a simple comparison to help property owners understand how a felt roof compares with other popular flat roofing options.
| Roofing Type | Average Lifespan | Cost Level | Maintenance | UK Weather Suitability |
| Felt Roof | 10–20 Years | Medium | Low | Very Good |
| EPDM Rubber | 20–30 Years | Higher | Very Low | Excellent |
| GRP Fibreglass | 20–25 Years | Higher | Low | Very Good |
When comparing flat roofing options, a felt roof typically lasts 10–20 years, offers a medium-cost solution, requires low maintenance, and performs very well in UK weather. EPDM rubber roofs can last 20–30 years, are slightly more expensive, need very little upkeep, and handle the UK climate excellently. GRP fibreglass roofs generally last 20–25 years, come at a higher cost, require low maintenance, and are also well suited for UK weather conditions. Each option has its strengths, but felt roofs remain a practical and cost-effective choice for many properties.
Each system has its place. A felt roof remains a strong option where budget, access, or shape make other systems less suitable.
How To Help A Felt Roof Last Longer
Simple steps can make a real difference over time.
We often advise:
- Annual visual checks, especially after storms
- Clearing leaves and debris from outlets
- Avoiding foot traffic unless necessary
- Booking professional inspections if signs of wear appear
Small repairs carried out early can prevent larger problems later.
Why Professional Installation Matters
A felt roof is only as good as the way it is installed. We have seen many roofs fail early due to rushed work or poor materials.
As professional roofers, we work to recognised trade standards and are members of industry bodies listed on our website. This ensures our installations meet current UK expectations and perform well in local conditions around Exeter.
Frequently Asked Questions About Felt Roofing
Signs include cracking, bubbling, loose edges, or persistent leaks. If repairs become frequent, replacement may be the better option.
Yes. Minor damage can often be repaired, especially if the rest of the structure is in good condition.
Yes. When fitted correctly, they handle heavy rain very well, making it suitable for the Southwest climate.
We recommend at least once a year, and after severe weather.
Yes. Modern felt systems remain reliable, widely used, and cost-effective for many UK properties.
Choose Salter Roofing For Your Felt Roof In Exeter
A felt roof remains a trusted and practical roofing option. With modern materials, skilled installation, and basic care, it can provide reliable protection for many years. If you are unsure about the condition of your roof, a professional inspection is always a sensible first step. Contact us today to learn more.