As Rotband plaster walls: the technology of preparation and application of plaster

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How to plaster Rotband: training base, preparing and applying the plaster, the use of reinforcing mesh

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Table of contents

  • 1 What the experts say
    • 1.1 Advantages premixed
    • 1.2 Specifications
  • 2 Start of work: preparing the base
  • 3 Preparation of plaster
  • 4 Applying the mix
  • 5 additional operations
  • 6 A bit of a reinforcing grid
  • 7 Summing up

Dry mix for plastering work on the basis of plaster and lightweight fillers «Rotband», produced by German company "Knauf" is used for manual finishing ceilings and walls inside the premises, including wet rooms - bathrooms and kitchen.

In this article, we will tell all about how to plaster Rotband.

What the experts say

How to plaster Rotband

For surfacing traditionally used lime plaster, and cement and lime-cement mixture. However, these materials have many shortcomings, including a tendency to form cracks, low ductility, high density and low processability.

Advantages premixed

Ready-mix gypsum-based, appeared on the our market not so long ago, but managed to win the recognition of professionals. Plaster does not shrink or crack, the material is very flexible, it allows you to work successfully with them even novice masters.

Specifications

Standard packaging "Rotband", weighing 30 kg costs about 180 rubles. This amount of the mixture can be 3.5 m² plaster walls with a layer thickness of 1 cm. Unit mixture based on cement, weighing 50 kg, has a value of 90 rubles, while the same can be plastered layer thickness of about 1.5 m². It is easy to conclude that the price «rotband» does not differ from that of normal plaster mixture.

In addition, the plaster on the basis of plaster have a low density, which can reduce the load on the ceiling. These mixtures are cured much faster cement analogs, reducing the total duration of the construction work.

With an average value of a layer of 2 cm, one plasterer per day can handle 10-15 m². If you use a traditional solution, this figure does not exceed 8-10 m².

Start of work: preparing the base

Immediately necessary to specify at what temperature can be plastered. The work should be held at room temperature + 18-22 ° C and a humidity of 60%. The substrate should be dry. On smooth concrete, it is highly desirable to make the incision.

Instructions for preparing the walls with his own hands:

The basis must be cleaned of dust, dirt, stains and residues of old coatings, primed deep penetration composition. After the primer dries, you can begin to install the beacon.

How to plaster walls Rotband

installation beacons

Installation of metal profiles, which are the guiding rule - quite an important process that affects the outcome of all the work. Now sold under beacons profiles of galvanized steel with a thickness of ribs 6 and 10 mm.

The latter have a high stiffness, which makes it easier to install them, but it increases the flow of plaster 1.5. Buying profiles, inspect them, they should be equal.

Installing beacons requires care and does not tolerate haste. Even an experienced specialist is able to deliver the day about 250 linear meters of profiles.

The main task - to put beacons strictly vertically, which is why your reliable "friend" should be the building level. It is better to use a long instrument, possibly a little shorter than the length of the lighthouses themselves.

On the back side of the profile, the cut height of ceilings, apply a layer of "Rotband" lean it to the wall surface (keeping it level) and grind it back / forth motions. Continually monitor the correct vertically against the level of the entire length of the lighthouse.

Gap between the profile and the wall plastering fill solution that is pressed out during the beacon installation. You can use wooden wedges, which after drying the mixture to be removed.

If the surface is too rough walls, plaster beacons applying the solution on the profile may be insufficient. In this case, the mixture is applied to a vertical strip, a width of 3-4 cm. The desired thickness of the plaster layer after staking turns with a plumb walls and cords system.

The gap between the guide depends on the length of the aluminum rule that you will use when pulling the plaster mixture. If the surface length gives the possibility to use the 2 meter rule and expose beacons step 1.8 m.

When the length of the wall to 4 m missing two beacons mounted symmetrically. Primarily plastered space between the profiles then the side of the wall. A support for the regulations at this stage is hardened plaster surface between beacons.

The described technique enables installation of the guide to the magnitude of the gap between the wall and the working surface of the beacon is not more than 0.5 cm, which meets all the international standards.

Preparation of plaster

Now let's talk how to prepare a solution for plaster. Solution under kneading using a bucket capacity of 10-15 liters. Cook the mixture over it is not necessary, because it quickly sets and loses ductility. A bucket fill one third clean cold water. Gradually add the dry mixture and it was stirred well to form a homogeneous and not comprising a mixed composition particles similar in density to the cream. For mixing using a mixer or a drill building capacity of at least 800 watts. Allow the plaster to stand for 10 minutes.

Applying the mix

Grout plaster

Grout plaster

  • The mixture was applied on the prepared wall plaster wide spatula, trowel / trowel upwards. The composition can throw, if you have the skills.
  • For the one reception plaster is applied to the area from beacon to beacon, about 1 m high. For a "pull" section using aluminum generally having a beveled edge.
  • Firmly press rule to guide and move upwards removing excess plaster. Remove them with a spatula instrument and return to the bucket for reuse.
  • The resulting mixture of coating defects are closed and draw procedure is resumed. The plaster is applied on adjacent land and everything is repeated.
  • Please note that the plaster "Rotband" is very plastic, so it can sag under its own weight. Aligning portion area periodically return to the finished surface and stretching it from the bottom, removing swollen excess solution.
  • If in the future the surface will be covered with ceramic tiles, grout does not require additional walls under the wallpaper and painting need to make amends.
  • Operation smoothing plaster can start 40-60 minutes after the draw is completed. A small amount of solution is mixed until thick liquid cream and applied to the "stripping" trowel stainless steel still wet plaster.
  • By the procedure is repeated after a previous layer be seized as necessary. Operation allows smoothing to remove burrs and defects that occur when pulling mixture. Gypsum plaster hardening time dependent on the humidity and temperature in the premises.

In standard flow plaster and a layer thickness of 2 cm for complete drying will require 6-7 days.

additional operations

Well smoothed wall after hardening plaster suitable for pasting of a dark-colored wallpaper. The bright and subtle wallpaper is not recommended to be glued directly on the "Rotband" because the foundation is often visible through them. In this case it is recommended to apply two coats of putty finish.

To protect the outside corners of the walls and plastered slopes from damage, it is desirable to set the angled profiles of galvanized steel. Analogs of aluminum should be avoided, because they have insufficient stiffness.

Profiles records all of the same stucco. During the installation of vertical corner checked long level.

Note! Preparing the walls for painting or cladding decorative plasters require stickers glass cloth reinforcing mesh.

A bit of a reinforcing grid

Glass cloth reinforcing mesh having cells 2 × 2-5 × 5 mm, glued to the substrate with a putty applied to the wall with a spatula. The grid is laid on the putty smeared and rubbed long steel spatula until the complete disappearance of wrinkles and roughness.

During installation excess putty material is extruded through the cell and removed spatula. Cloth mesh with overlapping distributed in 7-10 mm. Grid mandatory is put on the shelf angular profile approximately 1.5 cm, otherwise the probability of occurrence of vertical cracks on the border profile and the grid.

There is another way grid installation - glue PVA, which is diluted with water by 1/4. It is applied to the surface of the walls or ceiling of a paint roller with a long nap. Grid also rubbed with a spatula, the excess adhesive is removed and the treated surface is rolled again dry roller.

Note! The use of PVA makes it possible to significantly increase labor productivity and reduce the cost of consumables.

Once the glue is dry, reinforcing mesh is treated with two layers of finish putty, slightly sanded fine-grained sandpaper and after dusting the ground.

Under painting, decorative Venetian plaster is necessary to use a primer deep penetration, under the wallpapering would be enough to handle plastered walls diluted wallpapering glue.

Prepared in the manner described surfaces fully suitable for any decorative finish lining materials.

Summing up

Now that you know how to plaster Rotband. In order to more accurately understand the technological and practical issues on our website provides detailed photo and video instruction, in which you will find the necessary information on the question.

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