FAQ

SOLIDOR terrace pedestals are available from a build-up height of 3 mm.

• Fixed pedestals: from 3 mm, including the UP/C3/4T and other models from the Fixsol range.
• Adjustable Comfort pedestals: from 23 mm and extendable up to approximately 1 metre using extension pieces.

This is not recommended from a technical point of view, as it prevents water from draining away correctly and sufficiently. In these particularly critical edge zones, this can lead to water accumulation and, over time, even water infiltration.

Solution:

• Use the SOLIDOR wall finishing accessory. This accessory is bonded to the tile to maintain a sufficient open joint between the tile and the wall, while ensuring a clean and aesthetically pleasing finish.

To work as close as possible to a wall, round terrace pedestals are often cut on site. The reasoning is logical: to provide additional support along the edges of the terrace.

However, cutting a pedestal creates sharp edges. Under load and movement, these edges may eventually damage the roofing membrane or EPDM.

Solutions:

• Place a protective rubber pad underneath the cut pedestal.
• Use SOLIDOR half pedestals, specifically designed for installation against walls, such as our AK terrace pedestals.

A common mistake is applying silicone sealant to the top plates of the terrace pedestals beneath the last row of terrace tiles along the wall. This is intended to provide additional stability.

Although this may initially seem like a simple solution, silicone does not adhere reliably to the top plates over the long term. Exposure to UV radiation, temperature fluctuations and other weather conditions can cause it to become brittle and lose its effectiveness quickly. As a result, the stabilising effect may disappear after only a few weeks or months.

Better solution:

Use self-adhesive Sticksol top plates, which remain permanently elastic. This solution:

• provides durable fixation of the terrace tile;
• reduces impact and walking noise;
• helps limit the risk of terrace tiles lifting in strong winds;
• retains its performance under changing weather conditions.

The self-adhesive Sticksol top plate also helps improve the stability of terrace tiles under heavy wind loads, up to Beaufort force 11, in accordance with the available technical test results.

Terrace pedestals can be installed on almost any stable, load-bearing surface, such as concrete, screed, tiles, a waterproofing membrane or a properly compacted foundation.

Loose sandy soil is not suitable, as the pedestals may sink or shift. Always ensure that the surface is level, stable and sufficiently load-bearing.

Ceramic terrace tiles should be at least 20 mm thick and suitable for installation on terrace pedestals. Thinner tiles have a higher risk of breakage and are therefore not recommended.

The number of terrace pedestals required depends on the surface area, the type of terrace finish, the size of the tiles or the spacing between the support profiles.

Quickly and easily calculate the required quantity using our SOLIDOR terrace pedestal calculator. Enter the dimensions and construction of your terrace to receive an immediate, accurate estimate.

Yes, a terrace installed on pedestals allows rainwater to drain quickly through the open joints between the tiles or decking boards. The water flows underneath the terrace and is then discharged via the slope, drainage system or waterproof substrate.

The tiles or boards themselves are usually not water-permeable. It is mainly the raised structure on pedestals that ensures efficient water drainage. Because the surface is not installed directly in mortar or adhesive, space remains underneath for drainage, ventilation and the possible routing of cables or pipes.

A terrace on adjustable pedestals is therefore particularly suitable for roof terraces, balconies and outdoor areas where effective drainage is important. To ensure proper drainage, the substrate must have a sufficient slope and all drainage points must remain unobstructed.

For installation on terrace pedestals, we recommend tiles with a minimum thickness of 2 cm. Tiles that are 20 mm thick generally provide the strength and stability required for direct installation on pedestals.

Thinner tiles are usually not suitable for direct installation on pedestals, as they are more likely to bend or break. Always check the technical specifications and installation guidelines provided by the tile manufacturer.

Tile size, material, expected load and the number of support points also affect the stability of the terrace. For large-format tiles or projects exposed to higher loads, additional pedestals or an aluminium support system may be required.