The elevated terrace is characterized by open gaps between the pavers. These gaps allow for free airflow underneath the terrace and drainage of water from beneath each paver. This is a significant advantage of a ventilated floating terrace. In traditional terraces, the gaps between pavers are filled with grout, which deteriorates over time due to weather conditions, and water that seeps under the tiles can cause damage to both the tiles and the substrate during freezing.
For pavers with perfectly even edges, such as ceramic terrace tiles with a thickness of 2 or 3 cm, we recommend using grout spacers with a width of 3 mm. However, for pavers with minor irregularities, such as stone tiles, we suggest using grout spacers with a width of 5 mm.
We often hear concerns about the free drainage of rainwater with a gap width of 3 or 5 mm, but the answer is clear: a width of 3 mm or less ensures unrestricted water drainage.
