28/07/2026
Modern buildings increasingly integrate environmentally friendly and energy-efficient solutions through green roof systems. The long-term performance and efficiency of these systems depend heavily on the quality of the drainage layer used.
TekDrain GGF 20/200 is a high-strength green roof drainage board manufactured from HDPE (High-Density Polyethylene). With its high load resistance and durable structure, it optimizes water management, improves green roof performance, and extends the service life of the roofing system.
TekDrain GGF 20/200 is a high-performance drainage board produced from HDPE, offering excellent resistance against:
Its specially designed studded surface stores rainwater and prevents vegetation from drying out. Excess water is directed through drainage channels toward the parapet, ensuring roof safety while supporting efficient water management.
With a compressive strength of 200 kN/m², TekDrain GGF 20/200 is suitable for green roof applications exposed to high loads, including landscaped areas above parking structures.
The system stores 7 L/m² of water, helping plants meet their natural water requirements while safely directing excess water toward drainage points.
By supporting the thermal performance of green roof systems, it helps reduce:
The recyclable HDPE structure provides resistance against:
while supporting sustainable construction practices.
The controlled drainage system reduces pressure on urban drainage infrastructure by managing rainwater flow efficiently.
Helps protect roof layers against harmful sunlight exposure and contributes to improved thermal comfort.
After installing the root-resistant membrane, İzoTeknik 5000 or 6500 series is placed. Then, TekDrain GGF 20/200 boards are installed side by side.
A GeoTeknik 1100 PP geotextile layer is placed above the drainage boards to optimize water retention and drainage balance while supporting healthy plant growth.
Sheets:
Rolls:
TekDrain GGF 20/200 provides more than drainage performance. It contributes to:
The vegetation layer also protects the building from solar radiation and contributes to improved urban air quality.
With its HDPE structure, 200 kN/m² compressive strength, and advanced water management capability, TekDrain GGF 20/200 offers a reliable drainage solution for modern green roof systems. It supports plant development, improves energy efficiency, and contributes to environmentally sustainable building designs.
It is a green roof drainage board manufactured from high-density polyethylene that combines water storage and drainage functions in a single system.
The compressive strength is 200 kN/m², making it suitable for heavy-load green roof applications.
It can store 7 L/m² of water, helping prevent vegetation from drying out.
It maintains performance between -40°C and +80°C.
It improves energy efficiency, reduces carbon emissions, optimizes rainwater management, and contributes to green building certification processes.
TekDrain GGF 20/200 provides a durable combination of water retention, controlled drainage, and high mechanical strength, making it an ideal solution for sustainable and high-performance green roof systems.
