--- title: Bitumen Removal from Floors description: Effective methods for bitumen removal from floors, ensuring proper floor preparation and installation for new coverings. image: https://info.polysales.com/hubfs/Removing%20bitumen%20-%20Header.jpg --- [![Polysales_Logo_FullColour](https://info.polysales.com/hubfs/Polysales_Logo_FullColour.png)](https://www.polysales.com/) - [WHY VINYL](https://www.polysales.com/why-vinyl/) - PRODUCTS - [PRODUCTS](https://www.polysales.com/flooring-products/) - [ROLLING REGULARS](https://www.polysales.com/rolling-regulars/) - [SOLUTIONS](https://www.polysales.com/flooring-solutions/) - [PROJECTS](https://www.polysales.com/featured-projects/) - [NEWS](https://info.polyflor.co.za/news) - [MEET THE TEAM](https://www.polysales.com/about-us/) [CONTACT](https://www.polysales.com/contact-us/) Ask Denver # Bitumen Removal from Floors Effective methods for bitumen removal from floors, ensuring proper floor preparation and installation for new coverings. [Denver Coleman](https://info.polysales.com/news/author/denver-coleman) Aug 14, 2017 --- **Denver Coleman discusses the challenges and methods behind bitumen removal from floors. ** **“We regularly come across bitumen on screeds when uplifting old floors. What is your recommendation with regard to laying over bitumen or removing it?” Benjamin Zietsman, Cape Town** ![Removing bitumen](https://info.polysales.com/hs-fs/hubfs/Removing%20bitumen.jpg?width=502&name=Removing%20bitumen.jpg) In the past, many types of flooring including semi-flexible tiles, sheeting and wood floors were installed using bitumen-based adhesive. It is also a reasonable waterproofing agent and, as a result, quite successful as both an adhesive and a moisture barrier. When removing an existing floor, bitumen is easily identified as a black substance that is firmly adhered to the screed, remaining behind after the floor covering is removed. Due to the nature of bitumen, it seeps into the screed and is therefore very difficult to remove. Unfortunately, modern[self-leveling](https://info.polysales.com/news/why-do-we-need-self-levellers-and-moisture-barriers-today-if-we-didnt-need-them-20-years-ago) and smoothing compounds as well as acrylic adhesives are unable to bind to bitumen. Therefore, bitumen removal is essential before commencing with floor preparation for a new floor covering. Bitumen can be a challenge to remove and over the years many methods have been tried. Sanding it off, using a scraper or grinding can introduce several challenges; however, with modern technology, two possible methods are recommended. ### Method 1 The first method requires the screed topping to be hard so that a scabbling machine can be used to remove the top layer of the screed surface, which contains the bitumen. However, if the screed topping is soft, this method could destroy the entire topping. --- The most common cause of failure when using screed bases is construction moisture or the lack of an effective moisture barrier on sub-floors. [Read more about installing quality vinyl flooring](https://info.polysales.com/news/the-art-science-of-a-quality-screed-for-a-vinyl-installation)  [![Read article](https://no-cache.hubspot.com/cta/default/2749413/a2c89ef2-d4ec-4cec-8e98-6b5623c766df.png)](https://cta-redirect.hubspot.com/cta/redirect/2749413/a2c89ef2-d4ec-4cec-8e98-6b5623c766df) --- ### Method 2 The second method involves using an HTC grinding machine. These machines are available in different sizes for purchase or for hire and leave a very clean, smooth surface. If neither of these is available, the manufacturer of the screed preparation products should be contacted for further advice and assistance. #### Prior to preparation A moisture test has to be conducted prior to beginning a floor preparation. Bitumen is less affected by moisture than any other adhesive product and can therefore give a misleading impression that the original floor was dry, or give a misleading moisture reading if doing a surface moisture test. This is why a below-surface moisture test is needed. Failure to carry out proper moisture tests may cause adhesion problems after the [installation of vinyl flooring](https://info.polysales.com/installation-videos), which could be difficult and expensive to rectify. Once the moisture barrier has been applied, the surface should then have a blinding layer of screed/cement material applied over the damp-proof membrane to block any bitumen leaching into newly applied adhesive. After removing all dust and surface contamination, apply a primer coat of bonding liquid from the same product range that will be used for the blinding/blocking coat. Once the blinding coat has been applied, screed preparation can be continued as per normal. When planning a building renovation, it is advisable to check whether bitumen was used to adhere previous floor coverings so that sufficient time, budget and preparation for its removal can be taken into consideration. --- We have compiled the best list of advice for the [installation of vinyl flooring](https://info.polysales.com/installation-videos). See the [18 things to look out for](https://info.polysales.com/news/18-important-things-to-look-out-for-onsite-when-installing-vinyl-flooring) when installing vinyl flooring.  [![Subscribe to Insights](https://no-cache.hubspot.com/cta/default/2749413/14b040d1-754b-4175-aca2-fb060f8d9c74.png)](https://cta-redirect.hubspot.com/cta/redirect/2749413/14b040d1-754b-4175-aca2-fb060f8d9c74) --- **Got a question for Denver? ** **[![Ask Denver](https://no-cache.hubspot.com/cta/default/2749413/84c59439-afd2-4113-952c-2b4ea8297b23.png)](https://cta-redirect.hubspot.com/cta/redirect/2749413/84c59439-afd2-4113-952c-2b4ea8297b23)**    Ask Denver any questions you have about vinyl flooring solutions, so that you’re guaranteed the perfect installation you need. Click [here](https://info.polysales.com/news/topic/ask-denver?hsCtaTracking=a8b48397-5f09-4b36-b90e-6c4dff7f7a58%7C44307c49-ad45-4169-829f-4455f30f8300) to see all articles.  [Ask Denver](https://info.polysales.com/news/topic/ask-denver) ## Similar posts Vinyl Flooring ins and outs ### [Vinyl flooring jargon 301](https://info.polysales.com/news/vinyl-flooring-jargon-301) The vinyl flooring industry is filled with confusing jargon. This 4-part series aims to make it easier to understand and work with vinyl flooring... Clive Rabie Oct 20, 2017 Vinyl Flooring ins and outs ### [Vinyl flooring jargon 101](https://info.polysales.com/news/vinyl-flooring-jargon-101) The vinyl flooring industry has developed a range of (sometimes confusing) terminology over the last 50 years. This 4-part series aims to categorise... Clive Rabie Oct 6, 2017 Vinyl Flooring ins and outs ### [Vinyl flooring jargon 201](https://info.polysales.com/news/vinyl-flooring-jargon-201) The vinyl flooring industry is filled with confusing jargon. This 4-part series aims to make it easier to understand and work with vinyl flooring... Clive Rabie Oct 13, 2017 ### Get insights and trade secrets from our team of experts, straight to your inbox. We would love to share our knowledge that we’ve gained from many collective years of experience within our team. ![Polysales_Logo_FullColour](https://info.polysales.com/hubfs/Polysales_Logo_FullColour.png) Polysales, specialists in a range of quality vinyl flooring and wall protection solutions, with an extensive fit-for-purpose range, built to last.  Dependable, consistent and reliable partner, who provide ethical and responsible advice honed from years of experience.  A values driven business you can trust with your reputation. ### Contact Details - T: 011 609 3500 - F: 086 609 8131 - [E: marketing@polysales.com](https://info.polysales.com/news/marketing@polysales.com) ### Address - 8B Buwbes Road North Sebenza 1609 - P O Box 3967 Edenvale 1610 Copyright © Polysales 2025. [Privacy Policy](https://www.polysales.com/privacy-policy/) ```json { "@context" : "https://schema.org", "@type" : "BlogPosting", "author" : { "@type" : "Person", "name" : "Denver Coleman", "url" : "https://info.polysales.com/news/author/denver-coleman" }, "dateModified" : "2026-08-24T11:52:15.843Z", "datePublished" : "2017-08-14T08:00:00.000Z", "headline" : "Bitumen Removal from Floors", "image" : [ "https://info.polysales.com/hubfs/Removing%20bitumen%20-%20Header.jpg" ], "mainEntityOfPage" : { "@id" : "https://info.polysales.com/news/bitumen-removal-from-floors", "@type" : "WebPage" }, "publisher" : { "@type" : "Organization", "logo" : { "@type" : "ImageObject", "url" : "https://info.polysales.com/hubfs/Polysales_Logo_stacked_Fullcolour-1.png" }, "name" : "Polysales" } } ```