Aluminium grating for drain channel TRK

for green roofs

It keeps away the growing media from the outlet In case of a high layer structure Eliminates contamination and gravel Height of the gravel basket can be increased with 20 cm using the extension An aluminium frame (TRK-20-AL) placed directly around the roof outlet with drainage holes, preventing gravel from the build-up from falling through, and protecting against other contaminants. The gravel basket extension (TRK+-AL) is an aluminium frame with drainage holes that can extend the gravel basket’s height up to 20 cm, giving it a larger capacity to retain more unwanted material. Aluminium gravel basket, on the side with drainage holes, what impedes the solid materials (e.g. crushed stones) to be washed down into the drainage system by installing it between the outlets and the terrace grid. Size: 20x20x4 cm (LxWxM); mass: 0,14 kg/pc. Aluminium extension for the TRK-20-AL gravel basket, on the side with drainage holes, which provides protection for a higher layer structure from dirt or contamination. Size: 20.3×20.3×20 cm (LxWxH); weight: 0.3 kg / piece.