28/07/2026
In modern architecture, energy efficiency and environmentally friendly solutions are at the center of sustainable building technologies. Within these systems, the drainage layer is one of the most critical components for effective water management and structural protection.
TekDrain GF 25/270 Green Roof Drainage Board is a professional drainage solution manufactured from HDPE (High-Density Polyethylene), designed with high compressive strength and efficient water retention capacity for demanding green roof applications.
TekDrain GF 25/270 has been specially developed for:
With a compressive strength of 270 kN/m², it provides long-term structural stability under high loads.
The HDPE structure offers:
Its 25 mm stud height enables effective water storage while directing excess water toward parapets according to the roof slope, ensuring balanced drainage performance.
With its high load-bearing capacity, TekDrain GF 25/270 maintains its performance without deformation in:
The product stores 5 L/m² of water, helping plants maintain moisture levels and reducing irrigation requirements.
Excess water is safely directed through the drainage channels toward parapet outlets.
TekDrain GF 25/270 supports green building performance by:
The HDPE material provides strong resistance against:
It maintains structural integrity even in long-term underground applications.
By controlling rainwater flow, TekDrain GF 25/270:
Manufactured from recyclable HDPE, the product supports sustainable construction practices and contributes to green building certification processes.
After placing the root-resistant membrane, İzoTeknik 5000 or İzoTeknik 6500 is installed.
Then, TekDrain GF 25/270 drainage boards are placed side by side without overlapping.
A GeoTeknik 1100 PP geotextile layer is installed above the drainage system. This configuration allows plant roots to access the main water reservoir while maintaining balanced drainage performance.
TekDrain GF 25/270 is an environmentally responsible drainage solution for sustainable green roof applications.
It contributes to:
By supporting rainwater filtration and controlled drainage, it helps maintain the natural urban water cycle.
TekDrain GF 25/270 Green Roof Drainage Board provides superior performance with its:
It offers an ideal solution for modern green building projects by combining energy efficiency, environmental sustainability, and long-term structural protection.
It is a high-strength green roof drainage board manufactured from HDPE with a 270 kN/m² compressive strength.
The product can store 5 L/m² of water, helping reduce plant irrigation requirements.
It is suitable for terrace roofs, landscaped areas above parking structures, urban gardens, and green façade systems.
It improves energy efficiency, reduces carbon emissions, optimizes water management, and supports green building certification systems.
Its 270 kN/m² high compressive strength makes it specifically suitable for heavy-load green roof applications where higher mechanical resistance is required.
TekDrain GF 25/270 combines high load resistance, effective water storage, and durable HDPE protection to provide a reliable drainage solution for advanced green roof systems.
