Choosing to lay a floor with liquid screed is a great move for any building project. You will be left with a beautiful smooth floor ready for covering with minimal wasted materials and clean-up along the way. However, it is incredibly important that you pick the right sort of liquid floor screed. The contractors should be able to advise you properly, but here is our quick guide to give you a little more insight.
Bonded Floor Screed
If you are planning a floor for a mudroom, utility room, or any space which is likely to have many appliances, you should look into bonded floor screed. These will bond to the subfloor below them using adhesives like PVA or SBR and make a very strong floor. Your floor screeding contractors will recommend this floor type for floors that need to take the weight of any bulky appliances.
Partially Bonded Screed
A more cost-effective solution is partially bonded floor screed. This is thick enough that it won’t break down over time but will save you some money in the production. Ideally, you want to pour it over a rough surface to ensure that it is working properly.
Unbonded Floor Screed
Sometimes, a screeding company will recommend an unbonded floor screed. The subfloor in this set-up will have a polyurethane damp-proof membrane installed before the screed is poured. This means that even if the subfloor breaks, the screed will not be impacted.
Polymer Floor Screed
This is a very thin type of screed which is ideal for keeping moisture and chemicals from leaking out. It is made up of large amounts of polymers and can be used for speedier applications than some other screed options.
Floor Screed for Underfloor Heating
Sometimes referred to as floating screed, these are installed over the top of underfloor heating pipes. They are incredibly thin, usually approximately 30mm thick, and are used to help heat the floor in a more energy-efficient manner.
What Else to Consider
The type of floor screed is not the only thing you should consider when trying to choose one for your project. You also need to consider the timeline of the project. If you only have a certain window of opportunity to get the screed laid down, you might have to choose one type over another. It is incredibly important that you let the screed fully dry before trying to proceed with the job. Therefore, you might have to pick a screed which dries faster than the other.
The other constraint you have to consider is durability. Different mixes of screed obviously have different levels thickness and this will have an impact on durability. If you need a floor which will last no matter what you throw at it, you will need to consider a screed which is thicker.
Choosing the floor screeding contractors is equally important of course, and the right team should be able to explain all the options and advise accordingly.