Product Overview: Column-point geomembrane for green roofs is a lightweight, multi-layer material designed to provide both waterproofing and drainage functions for green roof systems. The column points (height: 8-20mm) create a uniform drainage gap between the waterproof layer and the growing medium, allowing excess water to flow away while retaining necessary moisture for plants. It is made of eco-friendly HDPE material that is non-toxic and compatible with various green roof plants.
Application Scenario: Specifically designed for extensive and intensive green roof systems in residential buildings, commercial complexes, and public facilities. It serves as a key component in the green roof structure, combining waterproof protection for the building roof with efficient drainage to prevent waterlogging of the growing medium. The column-point design ensures that the root system of plants does not damage the waterproof layer, while the membrane itself prevents water from seeping into the building. It is also suitable for rooftop gardens and vertical greening projects.
Key Advantages: ① Dual-function design: waterproofing and drainage in one material; ② Column-point structure protects plant roots and prevents membrane damage; ③ Lightweight (≤0.8kg/m²) to reduce roof load; ④ Eco-friendly, non-toxic material safe for plants and humans; ⑤ Easy to install and compatible with all green roof components (e.g., geotextile, growing medium).