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Moisture on exterior walls

humedades en fachadas

Moisture on exterior walls is one of the most common problems of buildings and housing, this usually happens by external and internal factors, may be by heavy rain or poor waterproofing of the facades, among other problems, the important thing is to address this problem as soon as possible because the facade is the most visible aesthetic part of the house.

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So today we are going to treat several important points about the humidity in the exterior wall or also known as facades, for example: What is the humidity in facades?, Humidity by filtration in facades, causes, consequences, solutions, frequent questions, among many other topics.

Let’s start with this topic that is very important and relevant for people who are or are not suffering from this problem of humidity.

humedades en fachadas

 

What are the Moisture on exterior walls?

Moisture on exterior walls is one of the moisture problems that happens most often because it is more exposed to rain and storms, especially moisture filtration. It is worth mentioning that the oldest houses and buildings are those that suffer the most from this problem as they do not receive adequate maintenance and / or repair.

The filtrations of the facades as I mentioned is due to the high rainy seasons and damaged pipes and plumbing, also the condensation of the cold climate achieves to increase the probabilities of contracting Moisture on exterior walls, in addition that its free exposure allows that the materials of the facade deteriorate with more rapidity, by the intense heat and by the rains.

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Humidity by filtration in exterior walls

The humidity by filtration in facades happens by an excessive circulation of water, this can be by intense rains and storms or by pipes and tubes in bad condition, both effects are a serious problem for the exterior wall, and great causes of Moisture on exterior walls, and what to say of the serious problems or consequences that can bring with it.

To prevent it we must repair the humidity of the external wall, that is to say that we have to take solutions to prevent future filtrations, like for example: to verify the ceilings or the walls and that they do not count on fissures and cracks so that the water does not continue filtrating.

Other ways to treat water filtration in facades is a good waterproofing, for this we can use damp-proofing membranes or damp-proofing insulating panels, also do not forget that you can use transparent liquid waterproofing and this not to say the essential use of thermal damp-proofing paints for facades.

Moisture on exterior walls

 

Causes of Moisture on exterior walls

Heavy rains and storms

Undoubtedly heavy rains and / or storm are a major cause of moisture filtration, both in facades and walls, ceilings and floors, especially in facades because they are more exposed to the open air and can make direct contact and that is why different problems happen as peeling paint or appearance of moisture stains.

Cracks and fissures in the exterior wall

Cracks and fissures can be another factor that can cause Moisture on exterior walls, as it facilitates the filtration of water inside these, although we have a good liquid and solid waterproofing with a small hole is enough for this problem of moisture to happen.

For it we must cover the cracks of the outer wall or better said we must cover the cracks of the outer facade so that the rain water cannot filter, I say to you that with only repairing the cracks of the outer facade you will have a 60% assured your facades, since you do not facilitate the filtration of water and the other 40% already depends on the other factors of the housing and of the climate.

Bad Waterproofing

A bad waterproofing gives way to the filtration of water in the exterior wall (facade), because the water can be filtered even if the facade is waterproofed only enough to find some free spaces and you will see that the water is still leaking, also we must check that our waterproofing are in good condition, for example: a brief inspection of our membranes annihumedades.

And if the facades are not waterproofed have the assurance that you will suffer from moisture in your exterior walls as it is completely exposed to rain and especially in the winter season as the wet weather and rain will be continually harassing the facade.

Broken pipes and tubes

Other causes of Moisture on exterior walls are damaged pipes and tubes, just having a small hole in our pipes and tubes the water is going to filter and humidify it, giving the opportunity to future moisture problems such as: Moisture stains, mold, peeling facades, etc.,

The problem can arise even if they are not directly in the external walls, for example: if we have broken pipes in the roof, the water can filter and reach the internal and external walls of the house, triggering a series of moisture problems, so it is recommended to do a maintenance to our pipes and connections of the house.

 

Consequences of Moisture on exterior walls

Moisture stains

The stains of humidity in a key symptom that our facade is going through a problem of humidity, this can be moisture by condensation or moisture by filtration, in both cases is presented. To fix the wall with humidity and avoid the stains of humidity you can sand the external wall and repaint it with an anti-humidity paint, as long as the problem is not slight, and if it is serious it is better to go to a specialist.

Mold on exterior walls

Mold would be a serious consequence of water filtration of the facade, this fungus is spread by a high percentage of moisture, to avoid it we must repair the moisture of the exterior wall, especially filtration problems such as broken pipes and poor waterproofing.

The higher the humidity in the façade, the greater the probability of mold and stains appearing, for this we must provide a solution to the humidity and perhaps you wonder how to solve the walls with moisture, do not worry more below I will provide these valuable solutions.

Peeling or peeling paint

The peeling paint on the exterior wall is the main symptom that our home is suffering from dampness by filtration in facades, only to see that this is happening we must take action quickly because the problem can worsen, repair the peeling exterior wall should be our priority as this can weaken the structure of our home.

leaks in exterior walls

The leaks happen because of the filtration humidity that happens in the façade, this usually happens because of the broken pipes and tubes that our house may have. Humidity in homes happens by small carelessness so we must give more importance to this point, on the other hand we forget that to avoid leaks we must repair the moisture in the exterior wall or facade.

 

Solutions for Moisture on exterior walls

Facade waterproofing

The waterproofing of facades and housing is the most effective and durable solution to this problem also Moisture on exterior walls like other humidities, there are many ways to waterproof the facade, but before that we must solve the various problems such as plugging the cracks or fix the pipes, also the creation of a false facade would be a good option to prevent this problem.

For us to understand better I will raise an example: We are in high rainy season and our facade are the most affected, for this we must implement anti-humendad membranes and a false facade, when painting we use a thermal anti-humidity paint and reinforce it with a liquid waterproofing, we have to see that the Moisture on exterior walls will disappear, to achieve this process is advisable to go to a specialist in dampness.

Here I am going to mention some waterproofing products that we can use for our facades.

  • Anti-humidity membranes
  • Breathable sheets
  • Anti-humidity insulating panel
  • Thermal anti-humidity paint
  • Anti-mould spray
  • Liquid waterproofing
  • Anti-humidity mortars

Home maintenance

The maintenance of the house serves us more than everything to control future problems of humidity in our house, among other problems such as heating, deterioration of materials, etc.. It is advisable to do a semestral or quarterly maintenance to see if our house is in optimal conditions to not suffer from dampness in facades, walls, ceilings, floors, etc..

Although it seems tedious I will tell you that it is better to pay to prevent than to pay to solve the problems of humidity, it is necessary to emphasize that the repairs of the humidities are not economic at all, the greater the damage and the difficulty is more expensive the solution, as designed a saying “It is better to prevent than to regret”.

mantenimiento de la vivienda

 

Questions about Moisture on exterior walls

How to prevent filtration dampness in the exterior walls?

Well we have told you previously a good waterproofing would be the ideal solution to prevent Moisture on exterior walls, the use of breathable sheet or damp-proof membranes prevents water from continuing to filter through the walls, cracks and fissures covered no longer facilitates the filtration of water, the use of a waterproofing paint and transparent waterproofing prevents water filtering the first layer of the facade, ie 100% protected.

For all this procedure is advisable to go to a specialist or a humidities companies since these works must be treated professionally, if you live in Madrid you can see the article of: Humidity companies in Madrid, where you will find the most recommended companies in the humidities sector.

aislar pared humedad

How to waterproof an exterior wall?

To waterproof a facade by ourselves, as long as the problem is mild, we can do with liquid waterproofing, damp-proofing mortars, sandpaper and damp-proofing paints, with this we will ensure our facade and prevent dampness in facades, here are a few steps that are easy to follow.

  1. First: We must pass the sandpaper or brush to remove dust and stains of moisture, in the case of having mold we can use bleach or sodium bicarbonate with lemon juice and then rub with a sponge to remove any trace of mold.
  2. Second: In the case of cracks and fissures use anti-humidity mortars to cover them, also we can pass over the facade, then add the white base and anti-humidity paint the color of the facade.
  3. Third: to finish we give a transparent waterproofing coat so that the water does not filter and slide without any problem, more than everything to prevent future dampness in facades.
  4. Fourth: This is not a step, but it is necessary to mention it, we recommend the use of gloves, mask and transparent glasses for this work.

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