Artificial Grass for Your Balcony, Terrace or Patio
Drain the Rain
It is important that the water drainage is good. Fortunately, most balconies are constructed in a way to allow water drainage to run-off. It is not good for the patio grass carpet when the bottom remains wet all the time. Also drainage tiles are an ideal underlay because they are designed to collect and redirect water away to eliminate problems with artificial turf.
You can also unroll artificial grass on a wooden decking on your terrace or balcony. Make sure the joints between each pair of boards is small in order to avoid visibility of the patio grass. Keep in mind that the wood deck under the artificial grass can hardly dry, so the water drainage must be perfect (if not, the wood deck can start to rot).