A whitewash of the ceiling along the old whitewash. Is it possible to bleach the ceiling on the old whitewash?

Whitening or painting ceilings is recommended only after the old finish is removed. However, the matter is rather complicated. Clean old chalk or lime from the ceiling for a long time and exhausting. In addition, there is a lot of dirt in the house after that. Previously, glue was added to the chalky solution before whitening. If the surface is finished with just such a tool, its purification does not turn into torture at all. Therefore, for sure, many owners of houses and apartments would like to know if a whitewash of the ceiling is possible along the old whitewash, and how to properly perform such an operation.

What you need to know about

In principle, you can paint or bleach ceilings without removing the old coating. But not in all cases. So, for example, whitewashing of the ceiling along the old whitewash with chalk is extremely undesirable in case it is covered with lime (and vice versa, respectively). Otherwise, on the ceiling must appear inaccurate stains. If you do not want to clean off the old coating, then the ceiling should be whitened with the same means used earlier. Do not also use lime or chalk if the surface has been previously treated with water-based paint. The surface is simply not spilled. The ceiling will remain yellow, how many layers would not have been applied.

Use of paint - is it possible?

Many owners of houses and apartments wonder, including whether it is possible to whitewash the ceiling over the old whitewash with water-based paint. It is believed that the use of this tool is permissible. But only in the event that the layer of old finish is not too thick and keeps on the ceiling hard enough. Oil paint or enamel on whitening should not be applied in any case. With their use, the old coating will still have to be removed.

Preparation for finishing

In the event that you decide to perform an operation such as whitewashing the ceiling along the old whitewash, before starting the treatment you will have to carefully prepare the old surface. Chalk on the layer of plaster usually lies exactly. Lime can also come off pieces. Therefore, in the latter case, before whitewashing, you need to check the entire ceiling for the presence of such detachments. Of course, all the pieces that have come off should be removed with a spatula. After performing this operation on the ceiling, of course, there will be unevenness. They need to be sealed with a special chalk filler or a thick lime mortar with the addition of a small amount of PVA glue (depending on the type of old finish). Of course, you need to miss all the cracks and chips that are on the surface.

Before proceeding to leveling the ceiling, it is advisable to pass it with a damp cloth to remove dust, cobwebs, etc. It often happens that the old chalk or lime coating has a yellow color. After applying a new finish, this yellowness, most likely, will still shine through. Therefore, before starting the work, this color-changing surface should be bleached. Such a need, for example, will necessarily arise when decorating the kitchen. Yellow ceilings are also in the event that one of the owners smokes right in the apartment. It is not difficult to whiten such a surface. It is enough to add to the water, which is dipped in a rag when cleaning, a little inexpensive means "Whiteness". If the ceilings are very yellow, they should be wetted in the prepared solution with a roller. Then you should wait until the surface dries.

The whitewashing of the ceiling in the old whitewash: technology

Chalk and lime usually do not have a very good adhesion to concrete. Therefore, the ceiling, previously finished with such a tool, should be treated using a roller rather than a roller. In this case, the surface will be smooth and neat. Roller use is also allowed. However, when using this tool during the execution of the work, you will have to make sure that there are no stains left on the surface. Of course, bleaching ceilings on the old calcareous or chalky layers should not be one, but at least two or three layers.

Use of water emulsion

Asked about how to whitewash the ceiling on the old whitewater, you should, of course, determine, including the type of decoration used. Chalk and lime in the design of ceilings today are extremely rare. In most cases, the owners of apartments and houses use water-based paint. This means on the surface of the ceiling is applied much more smoothly. In addition, the water-based emulsion does not exfoliate with time. But of course, this finish will last long only if it is correctly applied.

Before painting with water-based paint, the bleached ceiling should be primed. In this case, a special means of deep penetration should be used. After the primer has dried, you need to test the old coating for strength. To do this, just try to scratch the ceiling with a spatula. If the old coating is easily removed - it is better not to take risks and still remove it. If the chalk impregnated with the primer or lime is strong - you can proceed with painting.

Sometimes the owners of apartments and houses trim the whitewashed ceilings with water-based and without prior priming. This is also permissible. But only in the event that a very high-quality paint is used from a good manufacturer.

Basic rules of whitewashing

Of course, before you start an operation such as whitewashing the ceiling along the old whitewash, the room needs to be prepared. Floors and furniture should be covered with technical polyethylene film. Put on your hands rubber gloves. This is especially important in the case when slaked lime is used for the treatment . As you know, it is able to severely corrode the skin.

All doors and windows before the whitewashing of ceilings with water-emulsion, lime or chalk must be closed. Otherwise, on the ceiling after drying, ugly streaks and streaks will appear.

Use of special tools

The sprinkler gives a very thin finish layer. Therefore, the whitewash of the ceiling on the old whitewash with water-based paint when using this tool should be made at least in three layers. This allows you to get a smooth, absolutely white and clean surface. Before applying each successive layer, it is necessary to wait until the previous one has completely dried out. This rule, by the way, is observed both with the use of a spray gun and a roller.

Whether it is necessary to finish a surface without preliminary clearing?

So, we found out whether it is possible to whitewash the ceiling on an old whitewash. In principle, this is allowed. If all the above recommendations are followed, the owner of the apartment or house can eventually get a fairly even and beautiful coating. However, it will unfortunately have to be corrected later, than in the case if the ceiling was previously cleaned.

Therefore, before making a decision about whitewashing without removing the old layer, it is worthwhile to think carefully. Lime keeps on the ceiling pretty hard. Therefore, if the surface is finished to it, to apply a new layer without removing the old ones still makes some sense. But the chalk is removed from the ceiling very easily - just using a rag and water. Therefore, in this case, it is more reasonable to pre-clean the surface.