Linear drainage

Linear drainage systems by Alumatex

ASD Drainage System

The ASD linear drainage systems are equipped with a thick anodized layer, ensuring long-lasting corrosion protection. Our pre-assembled "Outline" click system allows for easy alignment and quick installation of individual profiles. Lifting keys are provided for the inspection chambers, making it significantly easier to lift/open the covers.

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ASL Drainage System

The ASL profiles are designed as covers for polymer concrete and plastic drainage channels with a maximum channel width of 100 mm. Our pre-assembled "Outline" click system ensures easy alignment and quick installation of the individual profiles. Lifting keys are provided for the inspection chambers, making it significantly easier to lift/open the covers.

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GSL Drainage System

The GSL profiles are designed as covers for polymer concrete and plastic drainage channels with a maximum channel width of 100 mm. Our pre-assembled "Outline" click system ensures easy alignment and quick installation of the individual profiles. Lifting keys are provided for the inspection chambers, making it significantly easier to lift/open the covers.

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GSL Drainage System Accessories

Drainage System Installation Guide

In the following steps, we will illustrate how the installation of the ASL linear drainage system on polymer concrete channels could look and what to consider during the process:

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Step 1: Consideration

Ensure that when laying the polymer concrete channels, you take into account the installation height of the ASL system. The upper edge must be installed 3 mm below the surface to ensure proper drainage.

Step 2: Placement

First, position your channel system in the desired location. The ASL systems are placed on the channels. If necessary, they can also be pre-mounted on the channels. Take advantage of the "Outline" feature of our profiles, which ensures automatic straight alignment of the profiles and saves a lot of time during placement.

Step 3: Inspection chambers

To simplify cleaning, we recommend installing inspection chambers at each end and over each outlet of the system.

Step 4: Filling


Then, wall up the entire system. After installation, only the drainage slots of our ASL system should remain visible. The system blends seamlessly into the flooring with no loss of functionality.

Drainage System - Additional Information

All linear drainage systems and related accessories come standard with removable protective strips on the top. These protective strips prevent dirt and cement residue from entering during installation and should only be removed after the installation is complete.

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The linear drainage systems undergo rigorous testing for quality, durability, and load capacity before being introduced to the market. Upon request, we are happy to provide you with the necessary certifications.

To choose the right system for your application, we recommend contacting us or using the load chart below:

Color Variations


From now on, our linear drainage systems are also available in colors to match your windows, doors, or terrace railings. Provide this information with your order, and we will offer you a selection from durable RAL color tones.