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Floating screed with wall insulation strips

Floating screed – a new level of well-being

According to current residential study by Interhyp the majority of German tenants rave about their own property. For 72% of those surveyed, buying a house or apartment is one of their most cherished desires. In order to feel really comfortable, renovation or even refurbishment measures are often necessary. One pleasant warmth, a poor background noise and an individual design are particularly important for turning a house into a home. Find out in today's article how floating screed can contribute to the feel-good atmosphere of your home.

What is screed?

Specialists understand screed to be a Insulation layer between the unfinished floor and the floor covering. This intermediate layer can be laid in different ways, with a distinction being made between three types:

  • composite screed
  • Floating screed

The installation of screed is very important - not only for a flawless interior design, but also for the prevailing atmosphere. The intermediate layer can have a lasting effect on the indoor climate, as well as the durability of your floors.

Difference: floating screed vs. conventional bonded screed

Which type of screed the landlord and the craftsmen choose depends largely on the use. Conventional composite screed, for example, is relatively easy to install, but is less suitable for wet rooms. Bonded screed is used almost exclusively for the production of industrial floors in the commercial sector used because it can withstand greater loads. Floating screed, on the other hand, is suitable for almost all rooms and uses. This can be laid in wet rooms as well as in living rooms and has better sound and heat insulation.

The big difference between bonded screed and floating screed is that the former directly on the raw floor is processed. There is no need for any intermediate layers and just 25 mm is sufficient for the structure of the screed. Floating screed has no contact surface with the floor or walls and is placed on a layer of insulation. This also encases the walls and, if necessary, pipes, which explains the name.

Floating screed: advantages and disadvantages

Due to this special structure, on an insulating layer and without direct contact with the floor or walls, floating screed has a number of advantages:

  • The additional insulation layer is the floor warmer, which has a positive effect on the room climate and saves on heating costs.
  • The edge insulation strips previously attached to the walls offer a improved soundproofing. Thanks to this separating layer, noises (e.g. footsteps) are not transmitted through the walls to adjacent rooms.
  • Floating screed is particularly robust and due to its structure, it is suitable for all living areas, as well as for the kitchen and the bathroom.

Construction of floating screed

Exactly how floating screed looks depends on whether you want underfloor heating to be installed. In the following we will go into both variants so that you can get a better overview.

The construction of floating screed without underfloor heating

Laying screed without underfloor heating is relatively quick, but this mainly depends on whether wet or dry screed is used. The construction of floating screed without underfloor heating is carried out in the following steps:

  1. First, the floor slab is laid.
  2. This is followed by a first separating layer.
  3. Next, a layer of insulation is laid.
  4. This is followed by another separating layer.
  5. The screed is laid on the second separating layer.
  6. In the last step we lay the desired floor covering.

With a "floating" installation, the same layers are laid on the walls as on the floor slab - a separating layer, an insulation layer and a second separating layer. This wall insulation strip is essential and enables the heat and sound insulating properties of floating screed.

The construction of floating screed with underfloor heating

Laying floating screed while installing underfloor heating involves all the steps listed above. In addition to this, the Heating pipes incorporated into the screed. Therefore, the construction of floating screed with underfloor heating is carried out as follows:

  1. First, the floor slab is laid.
  2. This is followed by a first separating layer.
  3. Next, a layer of insulation is laid.
  4. This is followed by another separating layer.
  5. The screed is laid on the second separating layer.
  6. The heating pipes are laid directly through the screed layer.
  7. In the last step we lay the desired floor covering.

It is important in this way of working that Cover heating pipes with suitable insulating material, as floating screed must not come into contact with other components.

Floating floor with underfloor heating
Floating floor with underfloor heating

Area of ​​application: Floating screed can be laid here

Floating screed can be laid almost anywhere – for public buildings or private homes he is equally suitable. Popular rooms are:

  • Living spaces: living room, bedroom, children's room
  • Wet rooms: bathrooms, kitchens
  • Other rooms: hobby room, office, cellar, sauna

Since floating screed has no contact with the floor, walls and other components, it is not under tension. He can expand with temperature changes and there are no cracks, as would be the case with bonded screed.

Different types of floating floor

In general, screed in Dry screed and wet screed distinguished. While the dry variant is offered as slabs or fill and is ideal for leveling out unevenness, wet screed has an earth-moist consistency.

There are six different types:

  • Calcium sulphate floor screed
  • calcium sulphate screed
  • cement screed
  • synthetic resin screed
  • magnesia screed
  • Mastic asphalt screed

Calcium sulphate floor screed and calcium sulphate screed are referred to under the designation anhydrite screed summarized and are actually the same. The only difference is the location of the mix. The flowing screed is delivered to the construction site already mixed, while the calcium sulphate screed has to be mixed on site. In any case, the anhydrite screed, which is based on calcium sulphate, is ideal for use in residential buildings and, like the cement screed, is also popular with do-it-yourselfers.

If you decide to install underfloor heating, mastic asphalt screed is usually the obvious choice. This is mixed entirely without water and has an individual expansion.

Synthetic resin screed is a comparatively expensive variant, which is more likely to be done at the request of the landlord. This special screed can be processed relatively thinly, has a short drying time and is based on synthetic resins.

While the four (actually five) types are mainly used in the private sector, is Magnesia screed not recommended for private rooms. The screed is well suited for large areas and does not tolerate moisture - use outdoors or in living rooms is therefore problematic.

Screed thickness depends on the type

The screed thickness is usually at least 25 mm and depends on the type of screed and future use. Below you will find a clear table with approximate values ​​for the different types of floating screed.

screed typeThickness
Calcium sulphate floor screedapprox. 35 mm
calcium sulphate screedApprox 35mm - 45mm
cement screedApprox 40mm - 45mm
synthetic resin screedApprox 30mm - 35mm
magnesia screedApprox 35mm - 45mm
Mastic asphalt screedat least 25 mm

Attention: Thickness varies not only between species, but also by product. For this reason, you must always pay attention to the manufacturer's information.

Conclusion: Floating screed is perfect for all living areas

Floating screed is very popular in private living areas. He knows Excellent footfall sound absorbing, sound and heat insulating properties and is suitable for both residential and wet areas. In general, the comparatively cheap variant based on calcium sulfate is usually used. However, if you want to have underfloor heating installed or prefer a faster drying time, you can easily switch to other floating screeds.

FAQ: A brief summary of the most important questions about floating screed

What is floating screed?

Floating screed is a special type of installation in which the screed has no contact with other components and is therefore sound and heat insulating. This type of laying can be used in both private and commercial areas and is very popular due to its robustness and efficiency.

Is floating screed highly resilient?

Due to the special installation, there are no tensions even with temperature changes, which protects the floating screed from cracks and other damage. For this reason, the screed is very resilient and is used in both private and commercial areas. Incidentally, floating screed does not necessarily have to be replaced even if it is damaged - repairing the screed is often sufficient.

Is floating screed suitable for a wooden beam ceiling?

In general, floating screed can also be used for a wooden beam ceiling. However, in this case you should use dry screed, as it is lighter and easier to lay.

Can floating screed be laid on underfloor heating?

Floating screed can be laid on underfloor heating, or rather: the underfloor heating is worked directly into the screed. However, it is important that there is no direct contact between the screed and the components. For this reason, all pipes are insulated with special insulating material before they are laid.

What services are included in screed removal and disposal?

The costs mentioned include all the services required for removing and disposing of the screed, from the journey to the site, through careful prying, to the professional disposal of the construction waste produced.

Can I also book you to remove small screed areas?

Yes. All offers from our screed company are designed in such a way that you can contact us with small and large orders. Our screed removal price applies equally to individual rooms and large building complexes.

Is it necessary to remove the existing screed to install underfloor heating?

With modern methods, our screed company is often able to mill underfloor heating into an existing screed. Our friendly and competent support team will be happy to advise you on which solution is best for you.

Can you make me a personal offer for removing and disposing of my screed?

Yes, we would be happy to compile the costs for your individual requirements in an offer for you. Please let our support know your wishes.

Do you also dispose of screeds containing asbestos?

Yes, our screed layers have the expertise and qualifications to carefully remove harmful asbestos products. All hazardous materials are disposed of professionally by us. Please let us know your suspicions early on. Our friendly support will inform you immediately about the appropriate procedure and any additional costs.

Do I have to remove my screed after water damage?

Screed removal is often useful. In the event of water damage, damage and mold growth can occur not only in the screed, but also in the insulation underneath. Our friendly support team will be happy to advise you.

Will my insurance cover the costs for screed disposal after water damage?

If water damage is the reason you have to remove your screed, insurance companies will usually cover the costs incurred. The helpful support of our screed company will be happy to help you with the correct process.

When can I enter the area again after the screed has been removed?
As soon as our screed layers have removed the old screed, you can enter the area again. A new screed or heated screed can also be laid immediately.
How soon can you come to me to have the screed removed and disposed of?

Our screed layers will be with you punctually at the agreed time and date. Typically, we will be with you within five to seven days of you contacting us to remove your screed and dispose of it at a fixed price.