Screed floor construction 6

+12.5 cm - ground floor, cellar, etc. - with concrete slab, PUR slabs as substrate - tiles, multilayered parquet, laminate, cork, carpet, vinyl and cast floor

Screed floor construction 6

Why the Staenis grid?

Tensions in the substrate are the biggest cause of damage to the tile work. With the Staenis grid, the screed is completely tension-free, so that the tiles and grouting remain in top condition.

Benefits

  • Achieving a perfect end result without any experience
  • Compartment of the screed = crack-free screed
  • Replaces an uncoupling mat = savings of an average of 30 euros/m²
  • Replaces the steel reinforcement net = savings of an average of 3 euros/m²
  • No expansion joints needed in the screed = savings of an average of 3 euros/LM
  • Spread screed work over several days (no stress during installation)
  • Much faster start-up of underfloor heating possible = faster construction process
  • No 'dishing/cupping' of the screed = perfectly flat screed
Screed

Floor construction manual

  1. Place a filling layer of insulating screed on the concrete slab to conceal all pipes. If necessary, smooth out by scraping the surface with a long straight edge.
  2. Place 2 staggered layers of insulation boards loosely on the filling layer. Cover with a plastic layer.
  3. Place the Staenis grid and adjust it to the correct height with a screwdriver. As standard, screed is poured 8 cm high/thick.
  4. Fill in the Staenis grid properly with screed and flatten it on the top of the Staenis grid. Sprinkle some screed on the surface and polish with a large sanding board. This ensures that the remaining holes are filled and a good bonding strength to the tile is guaranteed. Always place an expansion strip or edge insulation along the walls.

Side view floor construction

View this floor construction in reality via Sack Zelfbouw

Legend

  1. Concrete
  2. Pipes (heating, electricity, drainage, etc.)
  3. Insulation screed filling layer
  4. Insulation plates in 2 staggered layers
  5. PE foil
  6. Edge insulation 8 mm thickness
  7. Stainless steel grid (thickness from 4.5 to 9 cm)
  8. screed with 250 kg/m³ cement (incl. foil)
  9. Double bonding with S1 Flex Tile Adhesive
  10. Tile, multilayer parquet, floating floor covering,...
  11. Water-resistant, coloured joint mortar
  12. Plinth
  13. flexible silicone
Screed floor construction 6

Placement video

Placement of the Staenis grid

Placing screed

Placing screed with height difference

Filter quantity calculator (estimate)

Filling material

Surface

Thickness

cm
Amount of screed required (mix yourself)
( sand + cement)
Amount of screed required from prepared bags
(Add yourself: water)
Amount of screed needed in silo
(Add automatically water)
Amount of screed required from concrete plant
 
Amount of stabilised sand required (mix yourself)
( sand + cement)
Amount of stabilised sand required from prepared bags
(Add yourself: water)
Amount of screed sand needed in silo
(Add automatically water)
Amount of stabilised sand required from concrete batching plant
 
Amount of levelling compound or tile adhesive
(To perfectly flatten on the top of the grid)
Amount of drainage mortar needed in silo
( porphyry 02/06 + cement)
Amount of screed required
(Homemade or ready-made screed)

Cost calculation (optional)

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