Levelling plaster walls require virtually every case, capital repair or construction.Often it acts as a plaster finish of the decorative layer, but more often it serves as a basis for wallpaper or tiles.But in any case, its main objective is to align the walls and without certain skills novice is difficult to deal with it.This article will talk about the nuances of the selection of quality mixture, as well as the sequence of all phases of work.
- dry mixture Rotband
- Specifications Rotband
- Rotband Why?
- cost of leveling walls Rotband
- How to choose?
- Tools Required
- Getting Started
- Surface cleaning
- Technology leveling walls Rotband
- Preparation composition
- Drawing on the wall
- Alignment surface, grout and smoothing
- relief andreliefs
dry mixture Rotband
Rotband - Brand universal dry plaster mixtures based on gypsum from the world famous manufacturer Knauf, which produces top
Rotband Knauf drywall gypsum-based with additives that provide enhanced adhesion.It is recommended for use in rooms with normal humidity as well as the kitchen and bathroom.Due to its properties, it can be used for virtually all surfaces of walls and ceilings with a conventional solid foundation: brick, concrete, cement plaster, styrofoam and DSP.The manufacturer recommends the use of Rotband especially for smooth concrete surfaces of the ceiling and walls.
- Layer thickness: 5-50 mm for the walls, ceiling 5-15 mm.
- Consumption: approximately 8.5 kg / m2 (with a layer of 10 mm)
- amount of water to 30 kg: 18-20 liters
- time use ready mortar mixture: 20-25 minutes
- Drying: 7 days (Depending on the conditions in the room)
- maximum grain size not greater than 1.2 mm.Durability Compressive & gt; 2,5 MPa and the flexural & gt; 1,0 MPa.The density of the solid roughly 950 kg / m3.
- Packaging - paper bag with prepacking 30, 25, 10 and 5 kg.Shelf life 6 months (unopened package).
When choosing plaster undeniably important manufacturer, as a guarantee of quality of the company Knauf has already been mentioned, it is known to all, even to people far enough from the construction and repair.
- Rotband has undeniable positive qualities that distinguish it from other gypsum plasters:
- made from environmentally friendly natural mineral - gypsum, does not contain harmful impurities.
- easy to manufacture and use.Detailed instructions on the package dry mix Rotband help prepare their own and apply the plaster.Suitable for both experienced masters and beginners.
- versatility.It does not require subsequent shpatlevanija because it creates a smooth surface that is suitable for high-quality coloring.
- Fast to use.Rotband dries quickly enough (cement plaster dries about 30 days, plaster - 7).
- Due to its hygroscopic properties, the material "breathes", providing a favorable climate in the room.
- has good water-holding capacity, it does not flake or crack even when applied to porous, well-absorbent base.
- Allows creative freedom, allows you to create decorative elements, textured surface, as well as to carry out restoration work.
Rotband very popular with contractors performing renovation and decoration works, thanks to the practicality and ease of use.However, not to mention the deficiencies identified customers when working with the mixture.
- price.This plaster is in the middle price range.Its opponents say the presence in the market renders with similar qualities, but at a much lower price.
- possible shrinkage of the material.Although currently still controversial, since the material shrinkage or cracking may occur due to violations of the art mixing or application.The manufacturer claims that its stucco does not crack, even when applied in thick layers.
cost of leveling walls Rotband
Before starting the repair is to calculate the cost of leveling the wall plastering Rotband.The average price per pack of 30 kg in Russia - 360 rubles.This amount is sufficient to plaster surface of 3.5 m2.Take, for example, a room with a total area of 16 m2.Ceiling height of 2.5 m, length 6m, width of 2.7 m. The area of the walls in the room is 43.5 m2.Thus, room for plaster layer 1 cm, with an average consumption of 3.5 m2 packaging must just over 12 Rotband packages.It is very convenient that the manufacturer packs up the mixture, not only in large packages, so if a little is not enough, you can buy a package weight of 5 or 10 kg.Total costs for the room of 16 m2 will make 4320 rubles per 12 bags of 30 kg, plus an additional 200-250 rubles per pack.In this case, it counts only the mortar, not including tools, primer and additional materials.
How to choose?
So, to determine the choice of the plaster mixture remains the case for small - to purchase and proceed directly to work.But unfortunately, it's not so simple.Like all popular products, many imitations appeared Rotband.Kanuf Company made great efforts for their identification and elimination.To protect its own quality manufacturing company puts each package holographic label.In addition, should pay attention to the date of manufacture, which is specified not only the day / month / year and hour, minute, and most importantly - the second production.The new package appears on the line every 4-6 seconds, so the time for each package is unique, if there are two identical - before you fake.
Required Tools for plastering the walls, you will need:
- brush or roller for priming;
- level or plumb line;
- metal profiles 6 and 10 mm;
- spatula (a);
- Building mixer;
- metal rack;
- rigid sponge or a metal grater.
First of all, the wall is cleaned from larger particles of old plaster, paint, dust and dirt.If plastered concrete base, then they need to remove release agents (in other words, grease if available).The surface should be large irregularities.Metal parts are pre-treated anti-corrosion coatings.
In order to lay a good plaster uniformly dry out and is not deformed, the surface should be primed.
primer is chosen based on the type of substrate.For surfaces weakly absorbs moisture (concrete, cement, polystyrene), select the type of primer Knauf Betonkontakt.For the same surface with a high absorbency (brick, concrete) require a primer such as Knauf and Knauf Grundirmittel Rotband Grund.After application, the primer must be allow to dry completely, and only then proceed to substantive work.
One of the most important cases in the process of preparation is the installation of the flashing profiles, which will then be applied to the plaster.Now on the market are two types: 6 and 10 mm, newcomers easier to work with the latter, because they are tougher.When you purchase is necessary to ensure that no deformation and ensure accurate shipment.
Lighthouses are prepared in advance, they are cut to the required height.Surface mount vertically applied Rotband mortar mix at a distance of every 30 cm, then she pressed the flashing profiles and aligned in one plane vertically using a spirit level.
better to use the maximum length of the tool.Remains of a mixture, the remaining indentation lighthouse must be spread evenly over its entire length, to fill the gap between the Lighthouse and the wall.
distance at which the beacons are installed depends on the length of the rules.Ideally, when the length of rule 2 m beacons located at 130-180 cm apart.
Technology leveling walls Rotband
works plastering surfaces can be produced in environments with temperatures ranging from +5 to +30 and relative humidity less than 60%.
One package weight of 30 kg is diluted to 18 liters of cold water.Water should not be hot, which may result in too rapid settable mixture.However, if the work on the plaster alone, it is better to prepare a smaller amount, because the composition is applied for 25-30 minutes after its preparation.In this case, the volume will be enough buckets 10-15l.It must be filled with water on the third and gradually introduce the dry mixture.To mix used construction mixer or a drill.According to the mass density should resemble cream.To improve the elasticity of the plaster is recommended to leave it for 10 minutes and then stir again.
Tip: during application is not permitted to add water or dry mixture into the solution, as well as any other components.
Drawing on the wall
Professionals mixture throws with ease movements from the bottom up.Beginners are advised to apply the mixture with a wide spatula.
at a time should be able to apply the plaster in width from one beacon to the next, and a height of about one meter.The layer is then necessary to align the rule.To do this, the tool firmly pressed to the beacon and zigzag movements like mixture is pulled upward.Excess plaster produced on the rule, or removed on the wall, or in a bucket for later use.
It is also important to know that because the plaster is very plastic, it can sink under its own weight.So do not be lazy, walk a couple of times a rule from the bottom in the process of applying plaster on the wall.
If you need a thick layer of plaster
It so happened that the walls are very rough and a layer of 10mm strongly enough.In this case, before it has had time to harden the first layer, to walk on it plaster comb, which will create a relief.
Post a layer to dry.Then again primed surface using Knauf Knauf Grundirmittel or Rotband Grund, and only after the primer is dry, apply a second layer.
If polystyrene plastered or cement surfaces, then they have a second layer is applied only reinforced mesh.
There are two ways of laying the grid: a thin layer of plaster or PVA glue.In both cases, the mesh is pressed down and smoothed out with a spatula until the complete disappearance of irregularities or blisters.Then it is slightly oshkurivayut removed excess dust then primed, dried, and second layer of plaster.
ceiling plastered only one layer of a thickness not exceeding 15 mm.
Alignment surface, grout and smoothing
Approximately 40-50 minutes mortar starts to set, it is now necessary to align.Trim off any excess metal rack, filled depressions.The corners can be removed with a plaster plane.
obtain a surface suitable for laying ceramic tiles.Minimum plaster layer under it 10 mm.
surfaces to wallpapering or painting, 15 minutes after leveling overwritten rigid sponge or similar.To this end, their richly moistened with water and make circular movements grout.Since erased possible irregularities and traces of spatula after alignment.
In this way prepared wall can be glued wallpaper.However, if you have thin bright wallpaper, you can look through Rotband because of the rather dark color.In this case, better pre-apply a layer of finishing putties.
For high-quality color is necessary to achieve the glossy surface.To do this, wait for when the wall will start to dry out, become opaque shade (approximately 3-4 hours after the mixing of the solution), the wall again richly moisturize and smooth down metal grater.This surface does not require fillers, it can be easily painted.Here's a video about the alignment of the walls Rotband.
reliefs and bas-reliefs
gypsum plaster as if designed for creativity.It is perfect for all of your incarnations design ideas.Specifically, to create an unusual texture on the wall.Relief plaster is imparted with a roller or other relief forming tool.
spectacular success and repairs!