Manual and important points of attention for the Staenis grid:
Drainage mortar for terraces

Processing temperature

Only place drainage mortar and screed at temperatures between 10°C and 20°C, this ensures that the surface will not silt up or loosen. Also make sure that the drainage mortar and screed feels fresh/cold when placed or that the ambient temperature does not fall below 5°C.

Placement Methods

There are 2 different placement methods for installing the grid in your space.

• Row by row: Place a row of Staenis grids - Adjust the Staenis grid to the correct height - Fill the Staenis grid with drainage mortar and screed - Flatten it on the top of the grid - Repeat until the entire space is finished
• Pre-installed: Place all Staenis grids - Adjust all Staenis grids to the correct height - Fill the Staenis grid with drainage mortar and screed - Flatten it on top of the grid - Check the height of the grid - Repeat until the entire space is finished.

Approved floor covering

• Tiles (ceramic tiles and natural stone)

expansion joints

• Surface areas without expansion joints may not exceed 200 m².
  For surface areas larger than 200 m², please contact us.
• Edge insulation (perimeter joints) must still be placed.

Processing

• The drainage mortar may be placed at different times, since the drainage mortar is interrupted by the grids. Always click in the next row of grids in order to prevent drainage mortar from drying out in the click system and this could prevent the click system from working properly.
• The grid must be clicked together over the entire surface area. If this is not possible, an expansion joint must be placed between the 2 surface areas with grids.
• The grid must be placed max. 5 cm from the wall in all places, in order to retain the advantages of the Staenis grid. If this is not done correctly, no guarantee can be offered.

*Fix the grids by placing weight in or on a compartment Click a row of slats from the grid to be able to pass with a barrow. Due to the fixation of the grid, the distance will remain the same after the row of slats click apart.

Placement of the Staenis grid

• Place the grids by clicking slats and legs together.
• Shorten the battens on the wall by sawing or grinding them. The maximum distance from the grid to the wall is 5 cm.
• When connecting to the wall, you can click the legs sideways into the slat to stabilise the grid. A 3rd type of click connection can be seen on both ends of the slat. This allows you to connect two slats with a side leg, by means of a slat. Note that the bar will only click in one direction.
• Use a screwdriver to adjust the Staenis grid up and down by turning the adjusting screw to the left or right.

Height adjustment

You can achieve the best possible flatness with a laser that corresponds to a line on a wooden tool / lath or folding rule. If you use a digital receiver, the screed will in any case cause differences in height of a few mm. A digital spirit level is also not recommended. Try to use a digital receiver or spirit level only to set out a number of points, in order to adjust everything in between by means of a vertical adjustment, tensioned rope or aluminium rule.

Accuracy

We ask you to pay close attention to the height adjustment during installation and to regularly check the flatness with a long aluminium rule or laser.

Installing drainage mortar

• Fill in the Staenis grid with drainage mortar and place it just slightly higher than the top surface of the grid. Try to lightly press the drainage mortar with your trowel or long screeding iron.
• Take a long screeding iron or aluminium rule and scrape all the excess drainage mortar off the grid. This means that it is now at the same height as the top surface of the grid.
• Sprinkle some screed with your hand on the surface and rub it with a large sanding board. This will fill in all irregularities. Make sure that you do not create a depression or a mound in the compartment and that you always remain flat.
• For extra adhesion and flatness, take the screed back and pile the screed up by holding the screeding iron at a slight angle (tilt by 3 degrees) and rubbing it over the surface.
• Check and correct each square for flatness to avoid cavities in the grid. This is a very important step that must be followed carefully.

* Only manually press / polish the drainage mortar and screed with a screeding iron and compact with a large sanding board. Do not press it with your feet, this can cause height differences.