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A floor screed is an essential part of any floor installation project. It provides a smooth and level surface for the floor covering, ensuring that the final result is both functional and aesthetically pleasing. However, as with any construction project, there is always the risk that something can go wrong. One of the most common problems that can occur with floor screeds is failure. In this blog, we'll take a look at what floor screed failure is, what causes it, and why it's so important to address. 

What is Floor Screed Failure? 

Floor screed failure is when the screed layer that is supposed to provide a level surface for your flooring becomes problematic. This can manifest in many ways such as cracks on the surface of the screed, hollow spots, and separation between the sub-floor and the screed or between the screed and the floor itself. 

What Causes Floor Screed Failure? 

Floor screed failure can be caused by a variety of factors. Some of the most common include: 
Poor Workmanship 
If the floor screed was not installed correctly, it is far more likely to fail. Issues such as the incorrect ratio of water to screeding compound, poor mixing, or failing to let the screed dry off entirely before adding the floor finish can all lead to screed failure in due time. 
Any kind of movement in the subfloor or the screed itself can also cause failure. Ground movement, substrate shrinkage, and even excess traffic on the floor surface can all lead to a floor screed being compromised 
Dampness can cause various types of floor screed failure, most commonly due to moisture being trapped in the substrate below the screed surface. Lack of moisture barriers, poor ventilation, or too much moisture in the screed mix can also lead to floor screed failure. 

Why Addressing Floor Screed Failure is Important 

Ignoring floor screed failure can lead to uneven and unstable flooring. This can lead to serious repercussions such as deformation or damage to the surface. This makes the floor unsafe and can damage your reputation if works were in the commercial realm. 
Moreover, it is much more difficult and costly to do repair jobs associated with a failed screed layer than it is to carry on necessary repairs while the construction projects are in progress. This may extend your cleanup time, causing project delays and budget overruns. 


Floor screed failure is frustrating and can lead to additional costs for flooring projects. As a dependable flooring contractor, understanding the causes of screed failure and taking the necessary steps to address these concerns when they arise is crucial. You might need to carry out repairs, such as applying a liquid screed layer that can mitigate against any effects of earlier screed failure. S & R Flooring specialists can provide advice in such cases. 
By addressing any issue as soon as detected, you’ll be guaranteed to achieve an outcome that consumers can spend years living with. Properly installed, a screed layer provides stability, insulation and levels off your final flooring material. With appropriate care given during initial stages, there’s nothing stopping you from achieving a well-done flooring installation that is safe and secure for everyone. 

5 Steps to Repair Failing Floor Screed 

Are you tired of your floor screed breaking down and causing an uneven surface in your home or office? Don't worry, we've got you covered! In this blog post, we will walk you through the process of repairing failing floor screed, step by step. Let's get started! 
Step 1: Identify the Problem Areas 
The first step in repairing failing floor screed is to identify the areas that need attention. Look for signs of cracking, crumbling, or unevenness in the screed. These problem areas need to be addressed before they worsen and create further damage. 
Step 2: Remove the Old Screed 
Once you have identified the problem areas, it's time to remove the old screed. Use a chisel or a hammer and chisel to carefully chip away the damaged screed, ensuring that you don't damage the subfloor underneath. Take your time with this step to ensure a clean removal. 
Step 3: Clean and Prepare the Subfloor 
After removing the old screed, it's important to clean and prepare the subfloor before applying the new screed. Remove any debris, dust, or loose materials that may hinder the bonding of the new screed. You can use a vacuum cleaner or a broom to sweep the subfloor and ensure it is clean and dry. 
Step 4: Mix and Apply the New Screed 
Now it's time to mix and apply the new screed. Follow the manufacturer's instructions for mixing ratios and add water accordingly. Use a trowel or a screeding float to spread the new screed evenly over the prepared subfloor. Take care to ensure a smooth and level surface. 
Step 5: Allow the Screed to Cure 
After applying the new screed, it's important to allow it to cure properly. Follow the manufacturer's instructions for the recommended curing time. During this period, avoid walking or placing any heavy objects on the newly repaired screed to prevent damage. 
And there you have it - 5 simple steps to repair failing floor screed. By following these steps, you can have a smooth and level floor surface in no time. Remember, if you're not confident in your DIY skills, it's always best to consult a professional flooring contractor for assistance. Happy repairing! 
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Our specialist teams cover the majority of the UK working on projects in most major towns periodically.   Contact us as we may be nearby today!  

Our specialist teams cover the majority of the UK working on projects in most major towns periodically.   Contact us as we may be nearby today!  

  Our specialist teams cover the majority of the UK working on projects in most major towns periodically.   Contact us as we may be nearby today!  

S & R Flooring covering the UK
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