Rough screed floor with his hands.The main stages of roughing screed

Stages roughing screed

main difference between the sub-floor screed of the finishing that it allows small filling defects.You can not try to make it perfectly smooth, because its main purpose - the alignment of large height differences.It's kind of the base under the topcoat.

to their own hands to make the floor screed must adhere to the following steps:

• prepare the floor;
• fix lighthouses pre-calculating the level of the floor.Prepare the base for pouring;
• stir the solution;
• pour the mixture;
• monitor the state of the tie until it dries.

Preparing for rough floor screed

The initial stage involves removing the baseboards, the old flooring, getting rid of old ties.To remove it is best to use a jackhammer, preferably electric.

Due to its power, this device will help as soon as possible to prepare for further work.
as a basis for the draft design of the pillow using a sand height of 10 centimeters, then poured gravel or crushed stone.Thereafter, the membrane should be laid to provide sealing so that they came to the wall.The surface is filled with expanded clay aggregate.This is followed by laying of thermal and noise insulation slabs.

Mandatory measure before pouring - reinforcement of foundations.This allows for increasing the strength of ties.Reinforcement is performed using a metal mesh or steel rod.

After all this is to align.Each room floors recommended to be on the same level.Not happy when the drops in the rooms sometimes up to 8 cm, as for the correction of all irregularities have to spend a large amount of material.Furthermore, this will increase much load on the floor.That is why it is most advantageous to perform the alignment separately for each of the rooms, and to eliminate the visual irregularities can be constructed sills.

Fixing beacons for roughing screed

On how well will be put beacons, the result depends on the screed.Begin to fix beacons should be, starting from the highest point of the floor.At this point the tie layer is sufficiently thin, however at least 0.6 centimeters.As beacons often use the guide profile with dimensions 27h28.It is best suited for this T-profiles, which are produced for floor leveling.To secure the beacon used solution used to fill the screed, or the solution is mixed with alabaster.

Spread the solution should be in small portions.Lighthouses, spread out on the floor and create more cards, then there is some distance between the marks, dependent on the length of the applied profile.

positioning beacons is in parallel rows.After all beacons were planted on the solution, produce alignment using for this level to be in any of positions read zero.Height adjustment takes place by means of shims.When the surface is leveled, it is necessary to be patient and wait for hardening solution used to fix the beacon.

Performing screed subfloors

When beacons are installed, it's time to begin the tie.First you need to knead the mixture purchased in advance, according to the attached instructions.You can also breed your own solution out of the sand and cement.10 kg of the mixture involves the use of 2 liters of water.For a good mixing is necessary to add in a mixture of water, but not vice versa.The solution is to prevent the bucket, using a mixer, ie a drill with an attachment or a puncher.This makes it possible to achieve a smooth consistency.

To speed the process, it is desirable to perform tie together: who is engaged in laying the screed, and someone to interfere with this solution.Alignment is carried out first with a trowel after which the rule is contracted on fixed beacons toward you.Welcomes the continued implementation of the screed, that is, when the entire solution to be filled, a second portion of it should be prepared.

Lighthouses during screed do not need to clean up, they have to stay in solution.However it is necessary to remove the guide profile, when the screed dries out a bit.Seal the hole left by the profile, it will be possible with the full drying screed.

control over the state of ties

need to wait 3 or 4 weeks before the complete solidification of the solution.All this time, you need to monitor the status of the finished screed.Daily for 2 weeks must wet the surface of the roller with water.This is done in order to avoid the appearance of cracks in cement dries.Avoid occurrence of cracks by adding a plasticizer solution.