Screed with insulation boards

Screed floor construction 6 & 7 - Choose a different floor structure

+12.5 cm - ground floor, basement, etc. - with concrete slab, PUR boards as substrate - tiles, multilayer parquet, laminate, cork, carpet, and vinyl - underfloor heating possible

Screed floor structure insulated with insulation boards

Information

First, the unevenness of the substrate and the pipes is leveled with insulation screed, on which the insulation boards and screed are placed.

Advantages

Achieve a perfect end result without experience
Compartmentalization of the screed = crack-free screed
Replaces a decoupling mat = saves an average of 30 euros/m²
Replaces the steel reinforcement mesh = saving an average of 3 euros/m²

No expansion joints required in the screed = saving an average of 3 euros/LM
Spreading screed work over several days (no stress during placement)
Much faster start-up of underfloor heating possible = faster construction process
No dish formation of the screed floor = perfectly level screed

View all technical advantages

Floor construction manual

1. Place a leveling layer of insulation screed on the concrete slab to conceal all pipes. Where necessary, you can place a StaenisGrid section to work as flat as possible. Level this out further if needed by scraping over the surface with a long straightedge. 2. Place two staggered layers of insulation boards loosely on the leveling layer. Then cover these with a plastic sheet and consider installing underfloor heating using a tacker system. You can also opt for underfloor heating with studded panels. This slightly reduces the height of the insulation boards to make room for the insulated studded panel. 3. Place the StaenisGrid and adjust it to the correct height using a screwdriver. By default, screed is placed at a height/thickness of 8 cm. 4. Fill the StaenisGrid properly with screed and level it to the top of the StaenisGrid. Sprinkle some screed on the substrate and polish it with a large sanding board. This ensures that the remaining holes are filled and a good bond strength to the tile is guaranteed. Always place an expansion strip or edge insulation along the walls. 5. Tip: At the start, you should first align the grid roughly. Then you fill it in with the screed. At this point, the grid may move slightly or sink a bit - this is normal and part of the process. Only after this initial setup and the addition of the screed should you finely align the grid to millimeter precision. 6. Tip: Place a plastic sheet over the freshly laid screed to prevent it from drying out too quickly and becoming sandy. 7. Permitted floor coverings: natural stone and ceramic tiles, multilayer parquet, laminate, cork, carpet, and vinyl. Always follow the installation instructions of both the floor covering manufacturer and the store where the purchase was made, and, if necessary, first apply a leveling layer or waterproofing.

Screed text guide Screed photo guide Frequently asked questions Blogs about screed

Side view of floor structure

View this floor structure in real life via Sack Zelfbouw

Legend

Concrete
Pipes (heating, electricity, drainage, etc.)
Insulating screed fill layer
Insulation boards in 2 staggered layers
PE film (0.2 mm)
Edge insulation 8 mm thick
Staenis grid (thickness from 4.5 to 9 cm)
Screed with 250 kg/m³ cement (incl. plastic sheeting)
Double bonding with S1 Flex Tile Adhesive
Tile, multilayer parquet, floating floor covering
Water-repellent, colored joint mortar
Skirting board
Flexible silicone

Side view of floor construction with underfloor heating

Legend

Concrete
Pipes (heating, electricity, drainage, etc.)
Insulating screed fill layer
Insulation boards in 2 staggered layers
PE film (0.2 mm)
Underfloor heating
Edge insulation 8 mm thick
Staenis grid (average thickness 8 cm)
Screed with 250 kg/m³ cement (incl. plastic sheeting)
Double bonding with S1 Flex Tile Adhesive
Tile, multilayer parquet, floating floor covering
Water-repellent, colored joint mortar
Skirting board
Flexible silicone

Installation of the StaenisGrid

Choose a different floor structure

Installation video

Placement of StaenisGrid

Placement of screed

Installation of screed with height variation

We deliver screed in a silo to your home (only in Belgium)

Screed delivered to your home in Belgium in a silo

With a simple press of the button on the silo, you can produce fresh sand-cement screed at a rate of 3 m³/h, and this without time pressure to process the large quantity of sand-cement screed.

There are actually 2 separate compartments in the silo. One part is filled with sand (0/4-0/7mm) and the other part is filled with dry cement (250kg/m³). These are only mixed with water at the moment you wish.

The big advantage of this is that you can make fresh sand-cement screed at your own pace and for several weeks.

Purchase screed in a silo