The plastered façade
requires regular care treatments from us. If
the plaster is not cracked and requires no major repair action, the walls need
to be washed thoroughly. Facade cleaning
- what is worth knowing?
Cleaning the façade
The walls of the house
get dirty more quickly, the house is closer to a busy road or industrial
buildings. The rain will not do
everything for us. Also, when the
building has no eaves that protects the walls, they are more exposed to dirt. It is also worth knowing that more
often you will need to clean the façade, covered with old mineral plaster. New silicate, silicone and acrylic
plasters, thanks to ingredients contained in it, are less susceptible to dirt
and are easier to clean. The
effort of works devoted to cleaning the facade of dirt will also depend on the
structure of the plaster - the more porous, the more dirt settles on it and the
harder it is to clean it.
Cleaning the façade with
a pressure washer
Plastified walls are
best washed with pressurized water. For
washing with a pressure washer, we use a dispersed stream of water with the
addition of detergent, eg washing up liquid. Cleaning
the facade covered with plaster can be done using a solution at a temperature
no higher than 60 ° C and its pressure can not exceed 60
bar. Otherwise, we can damage the
outer layer of the walls. Let's
also check what distance of the nozzle from the wall surface will provide the
best effect. We clean the plaster
starting from the upper part of the walls, gradually descending downwards. With circular motions, several times
pour water over the individual parts of the walls, paying particular attention
to heavily soiled areas. You can
also first wash the façade with water and then with the addition of foaming
agents. Often after washing the
façade, it is necessary to paint it.
Cleaning of the facade
of the raids
In addition to ordinary
pollution, it happens that we can also find discolorations on the façade. Gray and green raids may suggest the
presence of algae, fungi, mosses and lichens. This
phenomenon usually occurs on the northern and western wall.Their development,
increases moisture and improper drainage of water from the roof. It is also worth knowing that mineral
plasters are not protected against the accumulation of mold and fungi. Facade cleaning with surface
impurities can be carried out using a soft brush. However, we will significantly improve
our work - pressure washer. For
the eradication of deposits, chemical and algaecides will be necessary. It is important that they can also
prevent the re-development of microorganisms on the plaster.When applying them,
special precautions must be taken and a protective dress will be required.
Facade cleaning: when
not to use the washer
Dust and dust are easily
removed from the walls with a pressure washer. Remember, however, not to use this
method of cleaning, if you see cracks in the plaster - the water will get into
the wall. It is better to donate
a washcloth, even when the plaster is weak - it could worsen its condition even
more. Dirt that the washer did
not handle must be removed by hand scrubbing. For
washing, let's use warm water with an admixture of cleaning liquid and a hard,
wide brush.
Security measures
After washing the walls,
the plaster should be impregnated so that dirt does not settle on it so
quickly. At the moment, special
formulations containing Teflon, silicone or silicate are available. Modern plasters, especially organic
thin-layer plasters, are characterized not only by very high durability. Unfortunately, it is not possible to
say about old mineral plasters. The
time comes that they start to crack or break away from the wall. On the facades, there are also rust
stains or other stains, the paint starts to peel, and where it does, mildew
begins to develop. This all
heralds the need for repair, which is better not to delay. Before starting repairs, it is worth
diagnosing the façade. You need
to look at the condition of the paint, whether you see dirt, where there are
scratches and cracks on the plaster. As
soon as the condition of the plaster arouses your suspicions, carefully tap it
to make sure that in some places it has not been removed from the wall. For such a test, a ladder will be
useful, because the qualifying qualities of the façade for repairs may be high.
