Commercial flooring

Best practice advice for the installation of commercial floor screeds, from substrate preparation through to reinforcement. 

Substrate preparation

Substrate preparation will vary depending on the specific substrate on which the commercial floor screed is to be pumped. The following are preparatory measures which may be required before laying screed: 

  • Removal of old flooring materials
  • Improvement of defective substrates where applicable
  • Cleaning (blasting, grinding, suction cleaning)
  • Application of necessary joints in the case of merged structures
  • Application of height marks

The substrate must be cleaned with a broom, vacuum cleaned and subsequently primed with weberfloor 4716 (mixing ratio of primer/water is dependent on substrate, please see datasheet for details).

Filling cavities

Before pumping the screed, holes and imperfections to a depth greater than 50mm must be filled using weberfloor base rapid 4360


If required, apply weberfloor 4945 glassfibre mesh to the existing substrate.

Weber glassfibre mesh is placed on top of the substrate or on top of the floating layer, for example, PE-foil, geotextile, sound insulation etc, with an overlap of at least 50mm. If used on a geotextile, the fibreglass mesh should be laid in the same direction as the geotextile in order to minimise the risk of the floor compound leaking through. When the glassfibre mesh is applied on sound insulation, it is recommended that both ends of the mesh be fastened to the insulation/substrate with hot-melt adhesive, for example.

Contact us

If you have any questions or would like assistance, please contact our technical team:

Our technical team is available Monday to Friday, 8:30am until 5.00pm.

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