Preparation of the surface for plaster - pedantry is welcomed
Is it good to be meticulous? In relations with people - it is very doubtful, but in work, especially when there is a need for a sea of patience, even excessive scruples are welcomed. In particular, it is very important to be scrupulous, pedantic( call it whatever) when preparing walls for plastering, when the slightest defect can turn into catastrophic consequences after finishing. The surface of the wall on which plaster is to be applied should be perfectly clean. But also it is undesirable to overdo it - it is better not to wash the wall with soap, there will be no adhesion( adherence).
First of all, it is necessary to carefully inspect the entire surface of the wall and identify areas that can be crumbled afterwards. They need to be removed immediately, because even if they are removed in the process of cleaning from dust, just the fall of such areas of dust and add. When all the unreliable places are completely eliminated, it's time to proceed to the second stage of preparing the surface for plaster - rubbing off dirt and dust. Scrape every centimeter with a toothbrush does not make sense, because in the unevenness of the wall, dust can be quite caked and cleaning one square meter will take more than a day. Therefore, just take a wet rag and thoroughly wash the wall( and just pass it does not follow a single centimeter).
Preparation of walls for plastering - we deepen roughnesses
Due to what the plaster of a plaster layer and a surface of a wall is formed? Only due to unevenness of the latter, and if the wall is relatively even, its surface must be deformed intentionally. Of course, for a puncher and a sledgehammer in such cases, it is not necessary to grab, just a hammer and chisel to break through small grooves and grooves on the entire surface of the wall. When unevenness, in your opinion, is enough, you can stop your destructive activity, and begin the creative, once again washing the walls.
In some cases, when there is no possibility to fence the wall with artificial potholes, a mesh is attached to it, and for plastering works on wood - specially prepared wooden lath( lunches up to two meters long and 15 to 30 millimeters wide).Grid with cells 30x30 millimeters( less possible, more - it is not necessary) tightens very tightly, so that it does not sag and does not bump up, drank the same diagonally to the floor, at an angle of 45 degrees, in two layers crosswise. The dimensions of the drone cells should be no more than 40 millimeters. If the wooden surface somewhere is joined with a brick or concrete, the net is also stretched to the crossing points. When this stage of work is completed, we continue preparing the walls for plastering.
With the help of a plumb and level( better than a laser), we reveal all the irregularities of the wall. The main task of the plaster is to make the wall as flat as possible, therefore, one should take into account every curvature of its surface. When using a marker or otherwise marking all the mounds and hollows on the plane of the walls in the room, we start placing beacons. These are some kind of levels, only permanent, they will be hidden under the plaster. One beacon, on the ledge, will be shorter, the other, in the hollow, is longer. In general, all the tips of the beacon columns( they can be represented by nails or screws) should be on the same plane. When everything is ready, we take out the primer.
Preparation of walls for decorative plaster with several strokes
So, what we have. Depending on the material from which our house is made, the walls are either warped with a chisel, or are covered with a net, or upholstered( as an option - all together or combined).Therefore, it remains only to properly primed the walls. We take a soft brush, we get a specially prepared primer, or, at worst, linseed oil, and begin to smear every bit. If the net is tight, then we try to cover each wire with a primer - this will protect the grid from rust, unless the Rabitz net with polymer coating is of course used. Also we coat the primer with beacons, grooves punched in concrete, in general - everything.
When the last smear is done, wait a couple of hours and go through the wall in a second layer. Another 5 hours the result of our work will dry, and then. .. Then you can go directly to plastering the walls, and then to other stages of finishing works in the apartment. The main thing do not forget that the tips of the lighthouses that you have filled before, should hide in the thickness of the plaster to a depth of at least a centimeter. Well, the stack or drill should be hidden by the first, rough layer of plaster.
But then you can live for decades in a quality plastered house, without worrying about the integrity of the walls, and from time to time smooth your hand with an even surface, concealing the beacons that so helped you.