PermaRoof Store UK

Your Rubber Roofing Questions Answered

Rubber roofing is way ahead of the game when it comes to domestic waterproofing, soaring in popularity as it outperforms felt and other traditional materials. As one of the UKs largest suppliers of EPDM rubber roofing, we’re here to help you harness all of its benefits for your projects.

If you’re new to rubber roofing, you’ll have questions! At PermaRoof UK, we’ve got you covered… here are ten of our most commonly asked questions – answered by the experts:

1. What is EPDM rubber roofing?

EPDM (Ethylene Propylene Diene Monomer) is a synthetic rubber roofing membrane widely used for flat or low-slope roofs due to its durability and flexibility.

2. How long does an EPDM roof last?

Some types of EPDM roofing can last for more 50 years, offering excellent resistance to UV rays and weathering. This has been proven over decades of field testing all over the world.

3. Can EPDM be installed over existing roofing materials like felt?

We would always recommend that you completely remove old roofing materials before applying EPDM for the best results and longevity. However, EPDM can sometimes be installed over existing felt if the underlying structure is sound and any loose or damaged material removed.

4. Is it possible to walk on a rubber roof?

The answer to this will vary, as sharp objects stuck in shoe treads can puncture even the toughest membrane. With care taken, yes, you can walk on a rubber roof for maintenance purposes. If the roof is intended for regular foot traffic, installing pavers or promenade tiles can help to protect the membrane.

5. What thickness of EPDM membrane should I use?

For most residential applications, a standard rubber roofing membrane of 1.14mm is often sufficient. A thicker, 1.5mm membrane gives a heavier duty finish, suited to green roofing projects, roof terraces and business premises.

6. How is rubber roofing installed?

Rubber roofing membranes are adhered to the roof deck using adhesives, and seams are sealed with seam tapes and primers to ensure waterproofing. RubberCover from ELEVATE can be cut into large sheets, which are often sufficient to cover domestic buildings in one go (up to 15m x 60m).

We offer a huge range of rubber roofing installation guides in the PermaRoof Store Knowledge Base.

7. Can rubber roofing be repaired if damaged?

Yes, rubber roofing can be repaired using appropriate materials. EPDM is hard to damage, but straightforward to repair and we provide a range of repair products to make it fast and easy.

8. Is EPDM environmentally friendly?

EPDM is often made from recycled materials and is fully recyclable at the end of its life, reducing landfill waste. Some carry a service life expectancy of more than 50 years, which means it requires replacing far less than other types of materials.

9. What is the largest size of EPDM membrane available?

ELEVATE RubberCover can be cut to any size up to 15m x 60m.

10. Are special tools required to install EPDM roofing?

Basic tools like rollers for applying adhesive, seam rollers and cutting tools are needed for EPDM installation.

Do you have a question about rubber roofing?

If you have a question about rubber roofing that we haven’t covered here, we’re happy to chat your queries through, please give us a call on 01773 441 947

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.

How to Replace a Garage Roof Fast

If your garage roof has seen better days, replacing it yourself with EPDM rubber is a cost-effective and long-lasting solution. EPDM (Ethylene Propylene Diene Monomer) is a durable, weather-resistant material that’s easy to install, making it ideal for DIY enthusiasts. In this article, we’ll walk you through the steps to replace your garage roof and ensure it remains waterproof for years to come.

Why Choose EPDM for Your Garage Roof?

EPDM rubber is an excellent choice for flat or low-pitched garage roofs due to its:

Durability – Lasts up to 50 years with minimal maintenance.
Weather Resistance – Withstands extreme temperatures, UV rays, and heavy rain.
Easy Installation – Can be installed in a single sheet, reducing the risk of leaks.
Low Maintenance – Requires little upkeep once installed.

Tools and Materials You’ll Need

Before starting, gather the following:

EPDM rubber membrane (pre-measured for your roof size)
Water-based or contact adhesive
Roller and paintbrush for adhesive application
EPDM roller for smoothing out the membrane
Utility knife or EPDM scissors
Measuring tape
Roof deck boards (if replacement is needed)
EPDM-compatible edge trims and sealant

Simplify the entire project by starting with a complete garage roof kit. Our range includes standard-sized single and double-garage kits and an option to have your EPDM RubberCover cut to any size up to 15m x 60m. You enter the size of the membrane required and our team will do the rest, ensuring you have all the materials you need in the right quantities. All you'll need to do while you wait for your kit to arrive is gather the tools.

Step-by-Step Guide to Replacing Your Garage Roof

Step 1: Remove the Old Roof

Strip off the old roofing material, including any felt, asphalt, or damaged boards.
Inspect the roof deck – replace any rotten or weak sections to create a solid base for the EPDM. Ensure the surface is clean, dry, and free from debris before proceeding.

Step 2: Prepare the Roof for EPDM

Check for any protruding nails or screws and smooth out rough areas. If needed, install new plywood, OSB or recovery boards for a smooth surface. Lay out the EPDM membrane loosely over the roof to allow it to relax for at least 30 minutes.

Step 3: Apply Adhesive & Lay the EPDM

Fold back half of the EPDM membrane and apply the water-based adhesive to the roof deck. Use a roller to spread the adhesive evenly. Carefully lay the EPDM back down, smoothing it out with a roller to remove any air bubbles. Repeat the process on the other half of the roof.

Step 4: Secure the Edges

Trim any excess EPDM using a utility knife or sharp scissors. Install EPDM-compatible trims around the edges to prevent water ingress. Apply sealant at joints and seams for extra waterproofing.

Step 5: Final Checks & Maintenance Tips

Ensure all edges are securely sealed. Check for any trapped air bubbles – smooth them out with the roller or a soft household broom. Inspect the roof periodically and keep it free of debris to maintain its longevity.

Enjoy a Long-Lasting, Leak-Free Garage Roof

By following these steps, you’ll have a sturdy, waterproof garage roof that will stand the test of time. EPDM rubber is a fantastic option for DIYers looking to save money while achieving professional results.

Ready to get started on your garage roof replacement? With the right tools and a bit of patience, you’ll have a high-quality, weatherproof finish in no time! Browse our range of roofing kits or give the team a call on 01773 441 947 if you need any help with your order.