Before solid wood flooring, it is necessary to play the dragon skeleton on the original ground. Therefore, the requirements for the formation of the original ground are not high, and the composite floor can be directly laid on the original ground. Therefore, the original ground floor will be the service life and pavement of the composite floor. The effect has certain influence. What method should be used to level the uneven floor before laying the composite floor? Ground leveling mainly includes the following three methods: self-leveling leveling, cement mortar leveling, and gypsum leveling. Of course, these kinds of leveling methods also have their own advantages and disadvantages. We can make comparisons based on the actual situation of our own family, and then choose the leveling method.

First, cement mortar leveling

Advantages: Suitable for all kinds of ground, all kinds of floor before laying the ground leveling. Applicable environment: The house has a high lift, radiator heating, leveling before laying solid wood flooring, and leveling before laying the composite floor.

Disadvantages: Leveling thickness is too thick in the 25 ~ 35mm, if the cement mortar ratio is not right will make the surface layer powdered sand, ash and cracks. The floor (composite floor) and the screed layer form some gaps. After the person steps on, the dust on the floor is dispersed and then spreads out from the expansion joint. Spread out through the gap in the skirting board to form a phenomenon of dusting. In addition, empty drums occur where the cement mortar is not evenly leveled.

Second, gypsum leveling

Advantages: can be used for local leveling, the ground does not need to raise, leveling thickness is about 5 ~ 20mm, almost no effect on the room height, drying speed, the price is relatively cheap, easy construction. Applicable environment: The room flatness is slightly better, the floor is smoother, and there are uneven parts.

Disadvantages: Can only be used for leveling within a small area.

>>>Links: Three commonly used methods for ground leveling

Third, self-leveling leveling

Advantages: no segregation (components in cement mortar do not separate during the entire construction process and after hydration reaction), no sand, no dust, no cracks; low shrinkage, usually 0.3 to 0.4 parts per thousand, hydration After the reaction, cracks did not appear on the surface, and the ordinary cement had a high shrinkage rate and was prone to cracks. The construction thickness is thinner at 2--5mm. The surface can be removed within 4-8 hours after construction, and floor covering can be performed after 36-48 hours. Applicable environment: 1. Suitable for the ground heating room, because the leveling thickness is thinner, does not affect the heat transfer of geothermal; 2 is more suitable for shorter rooms, because the leveling thickness is very thin 2--5mm, does not affect the indoor height Visual sense.

Disadvantages: Can not do partial, need to do the whole house.

Floor cement room heating house

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