Our Cut-To-Size TRC Techno Rubber Company EPDM Rubber Roofing Membrane is available in custom lengths and a range of pre-determined widths and thicknesses to suit a wide range of flat roofing applications. This versatile and eco-friendly membrane will provide your extension, shed, garage or similar flat roof project with a durable, waterproof and low-maintenance protective covering.
Easy to install, our single-ply cut-to-size rubber membrane is designed for a wide range of flat roofing projects. Simply input your chosen measurements into our cut-to-size calculator to instantly receive a price based on your exact requirements. Comes with 5 roll widths to choose from, ranging from 2.1 metres to 6.1 metres. This will limit wastage while saving you time and money when installing your membrane.
Made of EPDM (ethylene propylene diene terpolymer), conveyed to the calender extruder into large sheets and vulcanized for durability. Once fitted, EPDM membrane can have a life expectancy of 50 years or more with very little maintenance required over its long lifespan.
Suitable for extensions, sheds, garages, verandas, carports, porches and general flat roofing applications.
Overhang allowance is 200mm each side (400mm lengths and 400mm width)
IMPORTANT: All items are made to order/bespoke, please ensure you order the correct product as these items are non-refundable.
TRC Frequently Asked Questions
I have never installed a rubber flat roof… is it easy?
Techno EPDM kits are specifically designed for the competent DIYer. Some roofs are very easy to weatherproof, particularly freestanding roofs etc. Some roofs require more expertise eg. roofs with multiple skylights or awkward pipes and apertures.
You can find some installation guides here:
Do I need specialist equipment to install my new rubber roof?
You should only need basic hand tools for a straightforward roof. eg. tape measure, shovel, broom, hammer, handsaw, rubbish bags etc.
How long does it take to install?
The average (20m2) rear extension should only take a morning to install. Getting the roof stripped off and any decking replaced if needed usually takes longer than installing Techno EPDM.
I am worried about stripping off my old roof and leaving it exposed to the elements.
It is advised to check both the weather forecast and that you have the correct materials on site prior to starting. The beauty of the TRC Techno EPDM system is that if you do get caught in an unexpected shower you have a pre-cut weatherproof sheet to hand, which you can use as a tarpaulin.
Do I need to strip off my old roof?
It depends if the timber substrate is sound. If there has been a long term leak, or the decking is chipboard, then the roof may need reboarding in places. If the substrate is sound and the felt cleaned of dust etc then the EPDM can probably be adhered directly to it using contact adhesive (although this is more tricky to install).
To save time and expense, some people simply overboard their roofs with new ply or OSB, screwing into the existing substrate.
Is there an up or down when installing the rubber?
Techno EPDM is identical on both sides.
Are the products safe to use?
Yes and all products are supplied with clear instructions and safety data sheets. Sensible precautions should be taken ie. do not inhale adhesive fumes, do not allow children access to the products etc.
How long will my roof last?
Your new Techno EPDM membrane is guaranteed not to fail due to weathering for 20 years. It is essential that the product is installed in accordance with the detailed instructions provided.
Is Techno EPDM environmentally friendly?
Yes, EPDM is an inert material with limited environmental impact during manufacture and installation.
Can I use Techno EPDM in really hot or really cold weather?
For the best results, use in mild conditions. The adhesives should not be used if temperatures are likely to be below 5 degrees celsius within 24 hours.
Can I use Techno EPDM on top of insulation boards to create a warm roof?
A ply faced insulation board eg Kingspan TR31 or similar is recommended. Alternatively you can insulate on top of the decking with foil faced boards, then overdeck with OSB or plywood, secured with long screws.
Can I adhere Techno EPDM directly to felt, fibreglass, asphalt or concrete?
The contact adhesive can be used for this type of application but, unlike water based glue, this is quite tricky to do on large areas. It’s recommended to overboard roofs with a minimum 10mm ply or OSB and using the water based glue.
Can I walk on my new Techno EPDM roof?
The membrane is incredibly tough and perfect for maintenance access. For balconies etc then additional protection is recommended e.g. paving slabs, walkway pads or timber decking.
My Techno EPDM appears to be quite chalky, is that OK?
Chalk is used in the manufacturing process to prevent the membrane sticking together. It will gradually weather off and does not affect its lifespan.
I have some wrinkles in my Techno EPDM, is this a problem?
There may be wrinkles or creases in the membrane. These may be caused in manufacturing or shipping. Open out and allow the membrane to "relax" for as long as possible prior to adhering. For stubborn creases a gentle heat source (eg a heat gun or hairdryer) should be applied prior to adhering.
There are joins in the rubber, why is this?
Techno EPDM is manufactured in Saudi Arabia and the large panels are created using vulcanised seams. The material of these seams are homogeneous and 100% cured.
Can I install Techno EPDM in the rain?
The water based adhesive will work on damp timber but is not designed to be used in the rain. Contact adhesives will only work on dry substrates.
Can I install a cement screed on top of EPDM to create a walkway or balcony?
Techno EPDM is perfectly compatible with sand and cement.
My EPDM roof has been damaged, can it be repaired?
EPDM roofs can be easily repaired using the 9" flashing tape and Techno primer, cut the flashing tape to the desired shape and size, prime the area, allow to go touch dry. Peel the backing paper off and mate the surfaces together. Roller using a silicone roller.
Delivery charges
Delivery Access
Date and time of delivery
Failed deliveries are chargeable
Damages & missing items
Do not install purchased items if you have a query with the product (e.g., If you need to query damage that occurred during transit).
Delivery
How much does delivery cost?
Delivery charges will vary and will depend on the manufacturer, weight, size and delivery location. The cost is automatically calculated when you add items to the shopping basket.
How long will I wait for my delivery?
The estimated delivery times are shown on each product page, we will email you each step of the way to keep you informed. The majority of products can be delivered within 3-5 working days.We will advise you if the delivery period is different from than stated on our website.
Do you offer next day delivery?
We currently offer next day delivery on certain brands. If you have a particular item that you require quicker than the guide on our website, please contact our sales team on 01858 455055 during office hours, they will be able to confirm whether a quicker delivery is possible.
What if my delivery doesn't turn up on time?
Please contact our sales office on 01858 455055 or email sales@roofgiant.com and we will advise on the status of your order.
Do you offer free delivery if I spend a substantial amount?
Not as standard, we show the delivery charges separate once you go to the checkout so it is clear what you are paying for the products and delivery costs. If you are ordering larger quantities please contact out sales team who will be able to confirm if this is possible.
Do you deliver on weekends?
Not as standard, our deliveries are made Monday to Friday. If you do need an urgent Saturday delivery please contact out sales team on 01858 455055 during office hours who will be able to confirm. This will incur a premium charge if possible.
Do you deliver to Northern Ireland/Guernsey/The Scottish Highlands/Isle of Wight?
Some suppliers/couriers will deliver to these areas but not all, please contact our sales team on 01858 455055 or email sales@roofgiant.com during office hours for confirmation. If we are able to deliver the product you require, additional transport costs will apply, we will be able to confirm this to you. These additional costs are based on the manufacturer, distributor or courier providing the shipping on our behalf.
Do you deliver to Republic of Ireland, Europe and Rest of World?
No, unfortunately we nor our suppliers can deliver outside of Great Britain (and Northern Ireland in some instances).
What if my delivery doesn't turn up on time?
Please contact our sales office on 01858 455055 or email sales@roofgiant.com and we will advise on the status of your order.
Returns Policy
Important: Please do not send goods back before speaking to our sales office.
📞 01858 455055 | ✉️ sales@roofgiant.com | 💬 Live chat
We recommend you take photos of the goods and packaging before returning, as this may be required for courier claims.
Your Right to Cancel
Returns After 14 Days
Refunds & Costs
Exclusions & Brand Policies
👉 For full details, including supplier-specific terms, please see our Returns & Refund Policy.
