It may seem obvious, but when you are constructing a building there are many things to take into consideration, and one of them is that you will need the final flooring to be as flat and level as possible.
What that means is that you cannot lay the final flooring directly on to a concrete substrate. It simply will not be flat and level, and this is especially the case if you are using precast concrete beam and block floors. This is because they can have a distinct camber which can cause havoc if you try to lay the final flooring directly on to them.
There are, of course, several different types of materials that you can use for the final surface, and it is vital that the substrate must be as level as possible when you are laying tiles or stone slabs. This is because if it is not, the tiles will crack when under pressure from traffic. Even so, no matter what type of flooring you are installing, it still needs to be flat.
It Follows That You Need To Lay A Screed
What that means is that you need to lay a screed on top of the concrete before you lay the final floor surface. Traditionally, a screed has been made of sand and cement, often mixed in a cement mixer on site and barrowed on to the concrete. It is then levelled out as much as possible by a worker using a trowel.
Unfortunately, there are a number of issues that can occur, not the least of which is the ability of the worker doing the levelling. There is also the issue that a screed mixed in a cement mixer is not going to be completely consistent in each barrow load. (The issue of consistency can be overcome by using a ready mixed screed, of course).
This is why, today, liquid screeds are becoming so much more common because they are self-levelling, and these are the screeds which we supply at UK Screeds. They are delivered to site ready mixed and then we attach a long hose and pump and simply pump the screed on to the concrete.
Because it is liquid form, it will level itself out. All that we then need to do is to run over it with a dappling bar in two directions in order to remove any air bubbles and then leave it to dry.
Carrying out floor preparation in Aylesbury using our liquid screed is a far quicker process than using traditional sand and cement. Our screed uses calcium sulphate as a binder in place of the cement, and another benefit is that it is very quick drying.
On any building contract, time is money, and our screeds can be walked on within 48 hours at the outside, and often a lot less. Using our liquid screed will mean that other contractors who need to work on site are able to do so with absolutely minimal delay.