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Commercial Flooring News

Look Back Before Tackling Your New Project!

London flooring experts explain that it is of utmost importance to consider what products have been used on the building in the past before you undertake a refurbishment project. You should know that building built pre- 1970s were designed in a different way in terms of protection against sub-ground moisture. Back then, there were no design criteria to instruct the use of Damp-proof Membrane (DPM) – in other words, it was possible for moisture to get into London flooring. This greatly differs from DPC (damp-proof course) – it is a material which is used to stop moisture migration up the walls and prevent from rotting and other damages. London flooring professionals point out that the problem is that a DPC is typically visible within the brickwork while DPM can`t be noticed unless a core sample is taken. Good investigative work in the types of London flooring presently on your project will provide some helpful insights.

  • You should ask yourself if the London flooring would be prone to degradation caused by moisture. Thermoplastic tiles bonded with black bitumen adhesives – they are stable to moisture. Another alternative that is appropriate is wooden block flooring with a bitumen adhesive for a stable substrate. London flooring specialists also recommend resin floors, ceramics and carpet tiles and say they are safe ground-bearing floors of a refurb project. It is advisable to assume that the designers haven`t incorporated a base DPM – better utilise one before you put down a modern London flooring. When you are installing DPM in such cases, it needs to be a high bond strength product with a low moisture vapour transmission rate such as epoxy membranes. A two coat is sufficient to achieve good results.
  • On upper floors where moisture is not such a concern, it is important to figure what products are previously used – adhesives have changed remarkably over the years so you have to find out what has been used in the past to continue with your project. Linoleum floorcoverings and fibre-bonded carpets were often laid with a high shear strength, resin-type adhesive. London flooring experts recommend you to remove such an adhesive because they are very difficult to bond to. Another adhesive that needs to be removed to prevent any failure in the future is the specially designed adhesive for needle-punched carpets and lino. If you are dealing with rubber resin or acrylic adhesives you should know that they are fine to smooth over. Pressure sensitive adhesives and old tackifier are prone to break down so be careful with them!
  • Before installing your new London flooring solution, better remove black adhesives as they need lower strength smoothing compounds because the adhesives are soft – this can limit your selection of floor coverings. Have in mind that there are also formulations of thermoplastic tiles and black adhesives that incorporated asbestos – consider that before uplifting such products.
  • A reputable flooring company in London says that you should always follow the simple rule of not putting harder higher tension products over low tension products, to prevent any future failures. If you want to leave the smoothing compounds because they are firmly bonded, then look towards to choose a lower strength choosing compounds. There are good options available on the market which will give you more security without the ammonia smell!

Having the aforementioned facts above, you now know what to look floor before you decide you need a new London flooring and take up a refurbishment project!

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