ClassicBond® 1.5mm EPDM Rubber Roof Membrane

In stock
£8.59 £7.16

Delivery From £15 for all Standard Flat Roofing Materials.
Compatible Systems:
  • The ClassicBond One Piece EPDM system is great for large or small flat roof areas and is normally bonded on to a timber deck in one piece so no joins!
    Find out more!

1.5mm ClassicBond®  EPDM Rubber Membrane

Our 1.5mm ClassicBond® One Piece EPDM Rubber Membrane is 30% thicker than standard EPDM which makes it the ideal choice for almost all roofing projects, especially commercial roofs. The added thickness helps provide better tear resistance and extra durability and it is also more forgiving on uneven surfaces.

ClassicBond is the original EPDM roofing system with a proven track record of over 50 years service life. Recognised as one of the most reliable, durable and sustainable materials for your flat roof, ClassicBond is manufactured by Carlisle-Syntec who pioneered EPDM roofing systems in the 1960s.

For most applications the membrane is cut to the size of your roof and supplied as one single piece, trimmed to size and finished off with the correct drip, kerb edge and wall up-stand trims.


The rubber roof EPDM membrane is sold by the running metre from large pre-joined sheets starting at 0.5m in width and increasing in 0.5m increments up to 30.5 metres in length, by 15.25 metres in width. This means no  on-site joining is required as long as the roof does not exceed these measurements and makes the ClassicBond EPDM the best for quick and easy installation.

ClassicBond EPDM is available in two thicknesses:

1.2mm (standard)

1.52mm (commercial)

Why Choose ClassicBond® EPDM?

The ClassicBond roof system is designed to be cost effective and easier to install than traditional roofing systems. It is also very competitively priced ensuring great value for money. 

Due to the nature of the material it will easily bend and conform to the contours of your roof and is applied using adhesives, which means no flames or hot liquids, making it a safer option for installers and homeowners.

As EPDM is not affected by extremes of temperature that range from -40ºC to +120ºC, the membrane will not crack, peel or split and is covered by our 20 year manufacturers membrane guarantee.

BBA Certified and preferred by roofing professionals, ClassicBond is tangibly more pliable, slate grey in colour and is the ideal EPDM rubber membrane for both large and small flat roofs.

Order your EPDM flat roofing system by selecting the required length and adding to the basket, or simply give us a call on 02476 667234.

Buying a roof kit?
You might also need

If you’re buying for a new roof or replacing an old one, you will need to consider the following components in your roof kit...

  • Adhesives
  • Tapes
  • Drains
  • Edge Trims
  • Tools
Why not let the Kitbuildr do the hard work for you?
An Overview



Stock Type

Warehouse Fulfilled


1.50 mm

Max Length

30.5 m

Brand Name


Questions & Answers (23)

Is it safe to walk on an EPDM rubber roof?

EPDM rubber membrane is an extremely tough material that will easily handle light foot traffic, such as when it's being installed. However, it is important to make sure no sharp objects are introduced onto the membrane from boots or tools, check our video for a proper explanation of how to make sure you don't set a foot wrong

Are there any hidden costs with ClassicBond?

When pricing up your project it's important to understand any hidden costs with your preferred system. Like any flat roofing system, there are some hidden costs when using ClassicBond, check out RoofScout's video for more information. 

What are the pros and cons of ClassicBond?

With every flat roofing system, there are pros and cons which are important to understand before deciding if this system is right for your project. ClassicBond's positives definitely outweigh the negatives. Our friends over at RoofScout have a great video explaining all of the pros and cons you'll need to know before buying.

How Long Does It Take To Install A ClassicBond Roof?

Generally, installing a ClassicBond roof can be a very quick job if you have basic knowledge about the preparation and the correct steps to take.

Some factors will affect the installation time such as the current substrate, size and type of roof; along with if there is any detail work required such as skylights.

Our friends over at RoofScout have made a great video showing you exactly how long it takes to install ClassicBond on a freestanding, timber-boarded log cabin.

For Sam, it took him just under a 1hour and 30minutes. He did install this roof alone and installed edge trims which make a difference to the installation time.

Check out RoofScout's video below.

How can I remove stubborn manufacturer's creases from my EPDM membrane before I fit it?

Creases appear as hard ridge lines in the rubber due to the weight of the huge roll that is sent to us from the manufacturer. These can easily be removed from the rubber by gently applying heat to the crease and flattening it by hand, it must then be adhered to the deck using contact adhesive rather than water based deck adhesive

How do I get a heavy roll of EPDM rubber onto my roof?

Having just had your roll of EPDM rubber delivered, you may be faced with exactly how to get it up onto the roof! Without some heavy equipment (which we certainly don't all have access to!), it can be a daunting task! Luckily, Sam has put together this short video so he can share a few genius tricks to help you get that heavy roll onto your flat roof.

Which Timber Boards Should I Use For My New Rubber Roof?

Choosing the right boards for your job can be daunting with many different options available to use for flat roof decking. However, some are much more highly recommended than others. In our video below, Sam covers the key differences between the most commonly used boards, OSB3 and S-Grade Plywood.

How Difficult is it to Install a Rubber Roof on a Garden Building?

For the most part, each section of the installation is easy. Gluing the membrane down with both adhesives is very straightforward and securing the trims and clips to the perimeter is as well. Watch our video for a detailed step by step breakdown so you can follow along!

What Products Will I Receive In My Rubber Roof Kit?

We sell a wide variety of EPDM rubber flat roofing kits to our customers and try to provide the widest possible selection, with options for many different types of flat roofs available from Orangery Roofs to Garden Rooms. Check our video below for a full breakdown of what to expect in your kit! (The information about the contents of your kit can be found on the product page on our website.)

How should I store my rubber roof kit?

Which Thickness of rubber roofing membrane should I buy? (1.2mm or 1.5mm)

Both the 1.2mm and 1.5mm EPDM rubber membranes are perfect for residential and commercial projects alike. 1.2mm membrane is a trusted product by our roofing customers and our most popular item for a good reason. 1.5mm membrane tends to lay a little easier due to the thickness and can also provide a smoother looking finished flat roof. We would recommend 1.5mm if there is going to be anything overlayed on top of the rubber like decking, screed and tiles or even a green roof.

How can I tell which way up the membrane is supposed to be?

Whilst EPDM rubber membrane has no right side up, you will notice only one side has writing on it, this is from the manufacturer and has some information about the rubber. You can lay this side down to the decking for a cleaner looking finish, this can be useful if the roof can be seen from a window for example.

Are The EPDM Membranes Guaranteed?

ClassicBond®, ClassicBond Pro™ and RESITRIX® all have a life expectancy of 50 years. However, if you have attended our training course we are able to offer a 20-year EPDM guarantee. 

Applying for an EPDM guarantee is quick and easy, simply email us a photo of your completed roof along with your order number and the guarantee will be issued directly to you or your customer. 

If you would like us a find a certified installer near you, please call or email us.

Why Have Bubbles Appeared On The Edge Of My Newly Laid EPDM Rubber Roof?

Occasionally, bubbles and blisters can appear around the perimeter of the EPDM rubber roof just after it's been fitted. There are a few reasons why this can happen, the Contact Adhesive could have been applied too thick, or if it has not been allowed enough time to properly tack-off. Luckily, we can share a few tips to help avoid this potential problem, check our video for an in-depth explanation.

Can EPDM Withstand Hard Impacts From Outside Conditions? Such As Branches Falling On It Or A Bird Pecking On It?

Along with a life expectancy of 50 years and beyond, EPDM rubber can stand up to quite some force from outside elements, in our video below we explore what different objects falling on the rubber will do to it and how much damage it takes to actually penetrate the membrane! Prepare to be surprised!

My roof has a small hole which is causing a leak, how easy is it to repair this?

One of the most evident benefits of EPDM rubber roofing is that it can be repaired very quickly and easily, allowing you to catch a problem before it turns into something much bigger! Supplied as a 6 inch strip, any small hole or rip can be sealed effectively with our repair patch kits. This easy-to-use patch, primer and brush combination will ensure you can safely patch any minor damage to the roof.

Link to the kit here!

Does It Have To Be Dry For EPDM Roofing To Be Laid?

EPDM membranes require the substrate to be dry prior to installation so that the adhesive & primers can effectively bond the rubber to the roof deck. EPDM products will not adhere to wet or damp surfaces. It is important to bear in mind that trapped moisture within the deck may vaporise and negatively affect the performance of the membrane. 

If you would like more tips on when to install your EPDM roofing, check out the video below.

Is there a right side up when installing ClassicBond EPDM membranes?

Classicbond EPDM membranes are identical on both sides so there is no right or wrong side when installing this product. It is important to bear in mind that sometimes there may be a small amount of manufacturer writing printed on one side of the rubber membrane; if this is the case we recommend installing this side down onto the deck so that the clear side is only visible. 

What is the Life Expectancy of EPDM Rubber Roofs?

EPDM Rubber roofs have a 50 year life expectancy.

EPDM has been in commercial use since the 1960s. And many of those roofs are still around today. 

How Thick are ClassicBond Roofing Membranes?

ClassicBond Roof membranes are available in two thicknesses. The Standard membrane is 1.2mm thick and the Premium membrane is 1.5mm 

Can a ClassicBond EPDM Rubber Membrane be laid over an existing roof covering?

EPDM membranes can be installed onto a variety of surfaces. For best results, we recommend that the membrane be laid onto new Timber sheets (OSB3). This fresh new deck can, however, be laid straight over your existing roof covering without the need to strip the old roof. 

Is Classicbond EPDM BBA Certified?

Yes. ClassicBond EPDM holds the British Board of Agrément certificate, No. 11/4853, issued to Flex-R Ltd. The BBA carries out assessment, testing, approval and certification of products and systems for the construction industry against national requirements, internationally recognised standards or other relevant technical specifications, reviewed and reissued every 3 years.

Fire Ratings

The ClassicBond system is also fire rated, the 1.2mm EPDM has a fire rating of EXT.F.AB and the 1.5mm EPDM membrane is fire rated to EXT.F.AA. Fire rating is carried out on a variety of deck surfaces and it is important to seek the certificate that relates most accurately to your roof structure.

What Temperatures Can A Rubber Roof Be Installed In?

We recommend a minimum temperature of 5°C for EPDM installation. This is due to the WBA adhesive being water-based and lower temperatures may cause the adhesive to freeze over and fail. 

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