The DEKS Flat Roofing Internal Edge Corner Joint provides a secure, watertight connection between waterproofing membranes at internal roof corners where two edges meet at a right angle. Designed to create a long-lasting, flexible seal in critical roof junctions, it prevents leaks and protects the integrity of the waterproofing system in even the most demanding flat roof environments.
Ideal for use in areas where installations such as cables, pipes, photovoltaic systems, antennas, or air conditioning units pass close to a roof corner, this joint ensures a consistent, professional finish while maintaining the roof’s overall waterproof performance. Featured in both TPO and PVC versions to ensure full compatibility with different flat roofing membrane systems. Its smooth, white finish complements modern roofing systems and offers excellent visibility during installation.
To suit different project requirements, the DEKS Internal Edge Corner Joint is available in 95mm, 110mm and 130mm sizes. Each measurement refers to the length of the corner section, allowing installers to select the correct size to match the membrane width and junction spacing. This flexibility ensures the right fit for a wide range of flat roof systems, from compact residential installations to large-scale commercial applications.
Built to withstand harsh environmental conditions, this joint delivers outstanding resistance to UV radiation, weathering and atmospheric pollutants. It remains flexible and durable even in low-temperature climates, maintaining a reliable seal and preventing cracking or material wear over time.
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?
If a product is available with next day delivery, this will be displayed on the product page or in the basket. 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.
