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Don’t calculate the membrane. Calculate the project.

Single-ply EPDM membranes reduces your material and labor costs. Put the numbers to test and calculate savings for your next build.

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Don’t calculate the membrane. Calculate the project.

Three questions about your costing

How economical a system is isn’t shown by the price list, but by your costing.

Do you calculate just the material – or the finished job?

The price per square metre of membrane is quickly compared – but it’s only one item among many. Add labour, tools, transport and mark-ups, and only the total shows what the finished job costs and what you actually earn on it.

How much wastage is in your roof area?

Wastage is material you’ve paid for that never gets installed on the roof. How much of it you generate depends on the system and the roof geometry – and it has a direct impact on your material usage.

What does working with a naked flame cost you?

Wherever a naked flame is used, securing the site is part of the job. That’s diligence well invested – but it’s also time and organisation that need a place in your costing.

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12 minutes that make the difference

20 minutes per square metre: that’s how long it takes on average to install a two-layer bitumen system. With a single-ply EPDM system, it’s around 8 minutes. Those 12 minutes hold real economic potential for your business – not through a calculation trick, but through a different system approach. The result: more roof area with the same team in the same time.

Thinking about EPDM? We’ll support you as you get started – from your first project to a long-term partnership.
EPDM waterproofing: special solutions from CARLISLE® CM Europe

EVERYTHING FOR FLAT ROOFERS

From the Academy to the installation guide: we make EPDM waterproofing simple, safe and successful. Our wide range of practical support services makes sure that you – as a contractor, architect or planner – get the most out of your daily work.

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Learn from hands-on trade and technical experts how to make the most of flat roof design – while meeting every technical requirement with confidence.
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CARLISLE® Roofing System Info Pack
Thank you for your interest in CARLISLE® Roofing Systems. Request your free info pack.
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CARLISLE® Construction Materials Ltd.

Unit 1, Park Lane Business Park, Park Lane, Kirkby-in-Ashfield, Nottingham NG17 9GU
T +44 1623 627 285
E info.uk@ccm-europe.com

ARBO® Customer Service:

T +44 1773 826 661

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Time to rethink. Time to recalculate.

When it comes to choosing a material for a flat roof, price per square metre is often the deciding factor. It's not about what's left for you at the end of the job. Now that bitumen prices have risen sharply due to external factors, it’s important to consider the full picture: what are your actual costs, and what margin are you really making?

That’s precisely why it’s worth reconsidering how you price your projects. A single-ply EPDM system alters the equation in several areas: installation time, wastage, and on-site effort. So, what will this mean for your next project? Let's find out together.

Single-ply installation

The EPDM membranes RESITRIX® and HERTALAN® EASY WELD PRO are installed in a single layer. That removes an entire work step, and laying the main roof area is significantly faster.

Less wastage, less effort

With EPDM, wastage is only around 1.5%. With a two-layer bitumen build-up, it’s around 12%. That means: less material to move, cut, dispose of and reorder.

Flame-free installation

EPDM is installed without a naked flame. That eliminates the fire watch and additional organisational effort on site.

Request advice now

Don't calculate the membrane. Calculate the project.

Currently pricing up a bitumen project? Then let's take a look at it together. With the parameters of your specific building, realistic installation times and the system that fits your project. That gives you a solid basis for reassessing how profitable the job is.

Request advice now
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RESITRIX®: EPDM membranes for flat roofs and ground-contact applications

In a unique combination of materials, RESITRIX® unites the properties of EPDM with the advantages of high-quality polymer-modified bitumen in a highly flexible, single-ply waterproofing membrane.

Find out more about RESITRIX®
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HERTALAN® EASY COVER: prefabricated sheet system

HERTALAN® sheets consist of a homogeneous EPDM layer. They are prefabricated in the factory in sizes of up to 1,000 m². This minimises the number of seams to be made on site – and with them the risk of leaks as well as the workload.

Find out more about HERTALAN® EASY COVER
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