In the case of high loads and if there are no other specific requirements for impact sound and thermal insulation, a bonded screed is usually used. The properties of a bonded screed surface are its full-surface and firm bond.
Laying Techniques
Heating Screed
Heating screed is a floating screed in which heating elements and pipe coils for heating systems (underfloor heating) are installed. The pipe coils are usually made by the gas-water installer.
Floating Screed
Floating screed is the floor structure on the insulation layer, which consists of thermal insulation and impact sound insulation. Screed on an insulating layer, or also called floating screed, is primarily used to improve thermal and impact sound insulation in classic residential and office construction.
Screed on Separating Layer
Screed on a separating layer is used where no sound insulation or thermal insulation is required and a bonded screed is not an approach. This is the case when the substrate is not suitable for an adhesive base or when high loads do not have to be supported.
Screed Types
Cement Screed
The most common is the use of cement screed. It consists of cement, screed sand (0-8 mm aggregate), often additives and water. Cement screed is used especially in wet rooms, basements and outdoor areas. During drying, the cement screed gives off a significant amount of moisture. Here it is always necessary…
Calcium sulfate screed (CE) / Anhydrite screed (AE)
Calcium sulfate screed is mixed with binders based on calcium sulfate. Calcium sulfate screed, formerly often known as anhydrite screed, is characterized by the fact that it can withstand high pressure, is flexible and pliable, and has tensile strength. Calcium sulfate screed can be laid relatively quickly after installation and only after a very short drying time …
Lightweight Insulating Screed / Thermocell Screed
Lightweight insulating screeds are used in particular as a leveling layer for encasing pipes. It is often used as a thermal floor slab in new buildings or renovation projects where lower construction heights are required. It is also used as an insulated sub-concrete, on and under wooden ceilings and in vaults.
Rapid Screed
Rapid screed is used in residential and industrial construction. The advantage of rapid screed is that it can be covered with a top layer after 72 hours. Rapid screed from various manufacturers such as KNAUF etc. is used. Compared to the other types of screed, this is a simpler type …