What to Use Instead of Roof Felt This Year

If you’re thinking about re-roofing your shed, garage, or outbuilding, you might be wondering if there’s a better option than traditional roof felt. While felt has been a go-to material for decades, modern roofing solutions offer improved durability, weather resistance - and longevity. So, what should you use instead of roof felt this year? Let’s explore the best alternatives.

Why Move Away from Traditional Roof Felt?

Roof felt has been widely used because it’s cheap and easy to install. However, it comes with some downsides:

• Short Lifespan – Standard felt typically lasts 10–15 years, often deteriorating in harsh weather.
• Prone to Tearing – Felt can be fragile, especially in strong winds or under heavy foot traffic.
• Water Vulnerability – Over time, felt can absorb moisture, leading to leaks and rot.

With so many durable alternatives available, there’s little reason to stick with outdated felt. Here are two of the best options for replacing it.

Option 1: EPDM Rubber Roofing

EPDM (Ethylene Propylene Diene Monomer) rubber roofing has grown in popularity as a superior alternative to felt. It’s a flexible, synthetic rubber membrane that offers excellent protection against the elements.

Why Choose EPDM?

Incredibly Durable – With a lifespan of up to 50 years, EPDM outperforms felt by a long shot.
Weather Resistant – It won’t crack or become brittle under extreme temperatures, UV exposure, or heavy rain.

• Low Maintenance – Unlike felt, EPDM doesn’t require frequent repairs or patching.
• Fewer Seams, Fewer Leaks – Available in large sheets, EPDM minimises the risk of leaks compared to felt’s overlapping layers.

If you’re looking for a long-term solution for your flat or low-pitched roof, EPDM is one of the best choices on the market.

Option 2: Liquid Roofing

Another modern alternative to roof felt is liquid roofing. This involves applying a seamless, waterproof coating that bonds directly to the roof surface, forming a durable protective layer.

Why Choose Liquid Roofing?

• Seamless Protection – No joints or overlaps, reducing the risk of water ingress.
• Highly Flexible – Expands and contracts with temperature changes without cracking or splitting.
• Great for Complex Roofs – Ideal for roofs with multiple angles, protrusions, or hard-to-cover areas.
• Long-Lasting – Can provide 25+ years of durability with proper maintenance.

Liquid roofing is particularly useful for those who want a fast, effective, and versatile approach to a complex project without dealing with sheets or seams.

Which Option Is Right for You?

Choosing between EPDM and liquid roofing depends on your specific needs:

• For the longest lifespan and all-around durability – an EPDM roof kit is the best option.
• For an easy-to-apply, seamless solution for complex designs – a liquid roofing kit is a great choice.
• For shed roofs – an EPDM shed kit, the perfect alternative to roof felt, for a seamless, fast application. 

Whichever alternative you choose, you’ll be getting a more reliable and longer-lasting solution than traditional felt. So, if your old felt roof is looking worse for wear, now’s the perfect time to upgrade to a modern, weatherproof roofing material that will stand the test of time.

Frequently asked questions about roofing felt

Why is felt roofing considered unreliable?

• Felt roofing is often considered unreliable due to its relatively short lifespan compared to other materials. It is susceptible to damage from UV rays, extreme weather conditions, and general wear and tear, leading to cracks, splits, or bubbling. Over time, felt roofs can deteriorate faster, especially if not maintained properly.

Does roof felt have a high risk of leaking?

• Yes, felt roofing is prone to leaking if not installed correctly or if it ages. The seams and joints in felt roofing can weaken over time, making it easier for water to seep through. Even minor damage, like a tear or puncture, can lead to leaks that are costly to repair.

How long does a felt roof last?

• Felt roofing typically lasts between 10 to 15 years, depending on the quality of installation and maintenance. This is shorter than many other roofing materials like EPDM or metal roofs, which can last 20-50 years or more.

Is felt roofing difficult to repair?

• Felt roofing can be difficult to repair due to its layered construction. Patching leaks often requires careful attention to detail, and improper repairs can lead to further damage. The process can also be time-consuming and costly.

Why is roof felt not environmentally friendly?

• Felt roofing is often made from bitumen or asphalt, both of which are petroleum-based products. These materials are not biodegradable and can contribute to environmental pollution. Additionally, felt roofs need to be replaced more frequently than more sustainable options, leading to more waste.

Can roofing felt handle extreme weather conditions?

• Felt roofing is not ideal for extreme weather conditions. High winds, heavy rain, or intense heat can cause the felt to warp, crack, or degrade. The material may struggle to maintain its integrity under such stress, leading to potential leaks or roofing failure.

Does felt roofing require regular maintenance?

• Yes, felt roofing requires consistent maintenance to ensure it remains waterproof and in good condition. Regular inspections are necessary to identify and repair any damage, such as cracks or punctures, which can worsen if left unattended.

Is roof felt a fire hazard?

• While modern felt roofing products are often treated with fire retardants, they can still pose a fire risk if exposed to extremely high temperatures or direct flames. The material itself is flammable and can ignite under certain conditions.