What does screed cost??
Screed forms the substrate for a wide variety of floor coverings. Depending on the type of screed, the costs are often between 20, – and 40, – Euro per m².
Cost factors for the screed
The cost of laying screed depends mainly on the size of the room to be worked on and the type of screed used. If you want to compensate for minor bumps is suitable for floor screed. This is accessible again after two days.
If underfloor heating is planned, the laying of floating screed is recommended, as it is not connected to its surroundings. This also contributes to improved insulation. Also anhydrite screed is suitable for underfloor heating, as it transfers the heat quickly.
However, the best is the cement screed, as it is simply composed. Furthermore, it can be used both indoors and outdoors. However, it can contract when drying, which is why it is recommended only for smaller areas. It hardens only very slowly – up to 30 days – so that a construction freeze is necessary. With dry screed you bypass this problem.
Another cost factor is the thickness of the screed. Here, certain standards must be adhered to. For example, the screed thickness for underfloor heating must be at least 45 millimeters.
Cost of screed per m² at a glance – table
|Material and service||Price per m²||cost example
|cement screed||15, – to 25, – Euro||750, – to 1,250, – Euro||1.500, – to 2.500, – Euro|
|anhydrite||15, – to 30, – Euro||750, – to 1,500, – Euro||1.500, – to 3.000, – Euro|
|dry screed||20, – to 40, – Euro||1.000, – to 2.000, – Euro||2,000, – to 4,000, – Euro|
All prices are approximate values including VAT and may of course vary.
Use of screed
You can see the screed distribution in the bodyshell. Screed is the most important element in floor construction. The main task of screed is to form the connecting piece between the desired floor covering and the base of the floor.
What types of screed are there?
Due to the special resilience and resistance to moisture and moisture it can –
if it is properly dried – be installed indoors as well as outdoors.
A big disadvantage is the susceptibility to cracks. After installation, it tends to lose moisture and thus contract. If you decide for a cement screed, it will be ready for use after approx. 20 days.
Anhydrite or calcium sulfate screed
In this type of screed, a binder based on calcium sulfate is used.
The advantage is that this creates a special printability and this is very flexible. It can be laid without joints and is therefore ideal for laying underfloor heating.
The composition consists of sand, additives, water and anhydrite. If the screed has been professionally laid by a master craftsman, it can already be walked on after three days and can be loaded directly after one month.
Calcium sulphate screed is very sensitive to moisture. So make sure you have a seal and discuss the planning with your screed publisher.
For this type of screed, rock flour, grit, bitumen (binder) and sand are used for the composition. The big advantage here is the fast processing. Regardless of temperature and humidity, it can be laid immediately.
He can also very well absorb heat and sound. For home construction, however, poured asphalt is rarely used. He is more used in the construction of industrial plants and in road construction. It is also used as a surface course for the construction of motorways.
Synthetic resin screed
The screed can be mixed with this variant different types of plastic for the production. The most commonly used are epoxy resin and polyurethane. In addition, solvent-free additives, such as pigments, resins and various fillers are added.
The triggered chemical reaction causes the screed to harden. One advantage is the fast drying time and resilience. It is resistant to water, frost and moisture and is therefore often used for outdoor areas, such as a balcony, industrial areas and housing.
This type of screed is made of so-called caustic magnesia. This is a solution of magnesium chloride and organic matter, such as textile fibers, rubber fibers, sawdust or cork powder.
It is very sensitive to moisture and should be protected after weathering for at least two to three days from weather-related influences. A load capacity is reached after about four weeks.
For outdoor use, this species should not be used. However, magnesia screed has a very good conductivity and can absorb heat and sound. Furthermore, it can be laid without joints and even dyed. The acquisition costs are relatively high and the mixture should necessarily be made by a specialist company.
Laying techniques for screed
In the case of liquid screed, the mixture is delivered dry and mixed directly on the construction site. The flow screed is mixed with a self-leveling agent. The screed can be installed with a concrete pump. Flooring screed must dry out for a very long time before it can be used to lay floor coverings.
In the case of dry screed, the elements consist of prefabricated plasterboard or chipboard, which are laid and glued in association. These usually have an insulating layer and are very good for storing the heat.
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