Screed is the structure of different layers of mortar, which is laid on the substrate (with or without bonding). This can also be applied to an intermediate separating or insulating layer.
The screed matrix fulfils one or more functions and is mainly used to compensate for unevenness and differences in height of the substrate. Another aspect is the thermal and acoustic insulation.

Screed types:

By bonding agent and aggregate:

• Clay screed
• Cement screed
• Mastic asphalt screed
• Synthetic resin screed
• Calcium sulphate screed
• Magnesia screed

​​​By construction type:

• Bonded screed
• Screed on separating layer
• Floating screed and heated screed on insulation layer
• Dry screed
• Readiness for covering

Function of the fibre:

• Improved mechanical properties
• Better resistance to impact and shock through reinforcement of the STW fibres
• Enormously improved flexural strength and resistance to deformability
• Prevention of cracking
• Fibres help reduce shrinkage cracking and early shrinkage cracks
• Improved insulating effect
• Improved heat and sound insulation due to fibres added to special screeds