The DEKS Square Horizontal Flat Roof Parapet Drain provides reliable, high-performance drainage for flat roofs and parapet wall systems. Designed for use with EPDM, TPE, PVC and TPO waterproofing membranes, it ensures a watertight seal and long-term durability in all weather conditions.
Its square flange delivers clean alignment with parapet edges and roof details, while the smooth surface promotes strong membrane adhesion. The drain’s UV-resistant, flexible construction withstands temperature changes and structural movement, maintaining waterproof integrity over time.
Featuring pre-drilled fixing holes for secure installation and compatibility with gasket-fitted bends, it can also function as a vertical outlet if required. Ideal for both new builds and refurbishment projects, this versatile parapet drain ensures efficient water removal and dependable flat roof performance.
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.
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?
We cannot deliver any goods to Northern Ireland due to supplier restrictions.
Some suppliers/couriers will deliver to the other areas listed above, but not all - please contact our sales team for confirmation. If we are able to deliver the product you require, additional transport costs will apply. 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, we cannot deliver outside of Great Britain.
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 return goods without first contacting our Sales Office and receiving return instructions.
📞 01858 455055 | ✉️ sales@roofgiant.com | 💬 Live chat
Please take photographs of the goods and packaging before returning. These may be required to support a return or courier claim.
Your Right to Cancel
Refunds
Exclusions & Brand Policies
👉 For full details, including supplier-specific terms, please see our Returns & Refund Policy.
