Can multiple Drainbase tiles be stacked on top of each other to raise the height of a rooftop terrace with artificial grass?

It is not possible to stack multiple Drainbase tiles on top of each other, as the product is not designed for this application. Drainbase tiles are specifically developed to ensure efficient water drainage and stability in a single layer, and stacking the tiles may negatively affect the product’s functionality and effectiveness. It is important to install the product according to the usage instructions for optimal performance.