In its day a wall was continued without properly joining it with the new wall. The way to repair a crack in a wall is simple, but we cannot forget that the best repair is one that is not necessary. To start, we glued the mesh tape over the cracked area of the wall and we will overlap several layers of tape in order to expand the grip area. Once glued together and against the wall will make a “staple” effect holding the two parts of the wall.
We can see that the new wall is not correctly linked to the old wall, there is an area that not only the two walls are not properly connected, the gaps between the two walls were filled with decorative plaster cornices (they are the white pieces that there are among the mahones of different color) and even some piece of Pladur … The plaster cornices and the Pladur are not intended for this use.
Detail of the fault. The fissure allows you to see through the wall
All this results in the wall cracking through the area of the junction every time the door next to it opens or closes, making the fissure larger and larger over time.
The owners had repaired this fissure with Aguaplast (painter’s putty) on several occasions, but the repair lasted a short time.
HOW WE SOLVE THE PROBLEM.
First of all we need to clean the wall very well about 15 or 20 cm. on each side of the fissure.
We need a plastic mesh tape.
Plastic mesh to repair cracks in walls
We glued the tape over the cracked area of the wall and we will overlap several layers of tape in order to expand the grip area.
Bonding the plastic mesh to repair the wall fissure
Once glued together and against the wall will make a “staple” effect holding the two parts of the wall.
Placing the plastic mesh to repair the wall fissure
When we have placed all the mesh we will proceed to plaster the wall until it is completely finished and ready to paint.
Plaster the wall after placing the plastic mesh to repair the wall fissure
This solution is very good but not infallible, since the problem lies in the bad construction of the wall and everything that is not doing a good job from the beginning has its consequences.