When you are engaged in any sort of new build contract, or even one where the inside of a building is being gutted and new floors installed, the most important thing from the point of view of longevity of the flooring is that whatever the final floor surface is going to be, it is laid on a surface that is as level as possible.
If you want a floor that is going to last, which you presumably do, then you can’t lay it directly on to the concrete substrate. Hence why today we have screed, which is an intermediate material designed to flatten out all the dips, bumps, and dents in the concrete and provide a perfect surface for the final floor.
For many years now, a screed has been made from sand and cement and is then laid on the concrete by hand. This is a slow process and has some disadvantages compared with the latest technology which is the use of liquid screed.
Liquid screed, which is also known as anhydrite screed, is the best material for floor preparation in Derbyshire. This is made from sand and gypsum, much of which is recycled, and is laid in position using a pump. On any building site, time is money, and companies that specialise in liquid screed will be able to lay it at a rate of as much as 2,000 square metres a day, far faster than you could ever lay a screed by hand.
Because it is a liquid, it is self-levelling, and will usually easily achieve a surface level of SR2. However, you can also get a laser screed. This is not a product but is a process which uses lasers to level the screed surface and achieve a surface regularity of SR1 – and you can’t get better than that. This is the ultimate for floor preparation in Derbyshire.
Liquid screed has several other benefits. One of them is that it is ideal for use with underfloor heating because it completely fills the cavities and envelops the pipes, which ensures an even distribution of heat throughout the floor.
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