TRC EPDM roofing membrane is a single ply synthetic rubber membrane made of ethylene propylene diene terpolymer (EPDM). It is conveyed to the calender extruder into large sheets and vulcanized.
EPDM is a fully cured membrane that mainly contains EPDM polymer and carbon black, offering unmatched resistance to ozone and UV radiation. This membrane has no plasticizer resulting in a stable and inert membrane. It offers an extremely durable roofing solution. TRC EPDM remains flexible even at very low temperature (-45°C) and can elongate over 300% to accommodate building movements and temperature fluctuations.
All EPDM rolls have a pre-applied factory manufactured seam that does not affect the durability of the roll.
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.
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.
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 do not offer next day delivery but hope to offer this soon. 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 if possible.
What if my delivery doesn't turn up on time?
Please contact our sales office on 01858 455055 or email firstname.lastname@example.org 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?
Yes, we do but our transport charges incorporated in the site do not cover these areas, please contact our sales team on 01858 455055 during office hours for costs; or we will contact you to make the additional payment once you have completed your online purchase.
What if my delivery doesn't turn up on time?
Important Note: Please do not send goods back to Roof Giant before speaking to the Roof Giant sales office.
Roof Giant strongly recommend you take photographs of goods before returning. Occasionally goods are damaged during transit, therefore you may need to confirm the packaging/goods were intact (prior to collection) to the courier as part of the refund process.
As a consumer you have the right to change your mind (Consumer Regulations 2013). This right stipulates that for most products purchased online you have a legal right to change your mind within 14 days and receive a refund under the consumer contracts regulations 2013.
This right starts from the point you or someone you nominate receives the goods. If your goods are being delivered in multiple deliveries your right starts from the point the last delivery is received.
If you wish to exercise this right you must in the first instance contact us via phone 01858 455055 or email email@example.com advising us of your wish to change your mind, its then your responsibility to arrange for the goods to be returned to us within 14 days of ending the contract.
For more information on our full returns policy, click here.