No more damp walls

No more damp walls

Damp walls are not a good sign - the cause should be remedied as quickly as possible. as quickly as possible. With HW Mauertrockenlegung the following applies: Dry out once, never again damp walls!

You can find out why damp walls are a problem and where the damp comes from here. Please contact us if you have any specific questions!

HW wall drying - before and after comparison
When do we speak

When do we speak of a damp wall?

A wall is described as damp if the humidity value of the walls is above 2-3% (= equilibrium humidity outside air-indoor air). Stains caused by moisture on walls are the most reliable indicator. The cause of damp walls must be found and rectified as soon as possible, as the consequences of damp walls can in the worst case be dry rot, flaking plaster or stubborn mold after a while.

If you notice damp walls in your house, cellar or apartment, you should act quickly - get in touch with us - we can help you dry out damp walls quickly and efficiently with our mechanical process.

Damp walls

Damp walls - clear signs

We have listed two clear signs of damp walls for you here - if you recognize these on your wall, immediate action is necessary.

Mold on walls

There are various reasons for mold damage in living spaces, for example insufficient ventilation, inadequate heating or structural defects such as thermal bridges or insufficient insulation of the foundation wall. If the difference between the wall surface temperature and the indoor air temperature is too great, humidity condenses on the walls and causes mold growth.

The infestation usually manifests itself as gray to black spots (black mold) - sometimes colored areas also occur. The causes must always be tackled immediately and thoroughly at the base, i.e. by renovating the wall.


Spalling on walls

The reason for this is that the salts dissolved in the soil moisture form crystals on the wall surfaces as they evaporate. This crystalline chemical state has a larger volume than the liquid state. The result is the crumbling of paint and plaster, which in turn leads to staining.

The cause must be sustainably remedied and eliminated. Simple scraping or plastering will not solve the problem permanently!

As experts, we can help you with our efficient mechanical stainless steel barrier process, which we have developed over the years!

HW wall drainage - damp walls

Reasons for damp walls

Have you discovered one of the clear signs of damp walls in your living space? Then it's time to take action. First of all, however, it is particularly important for you to understand why your wall has become damp.

Damp walls can have various causes. The existing waterproofing system is often defective. In older buildings, however, it is usually the lack of a horizontal barrier in the foundation that causes soil moisture to rise capillary from the foundation walls into the masonry.

The moisture in the walls changes the indoor climate - resulting in a musty smell. Increased humidity leads to mold growth on the wall if it persists for a long time.

If capillary rising damp from the substrate is the cause of the damp walls, there is only one solution: drainage by installing a horizontal barrier layer by a specialist company!

Contact us - quickly combating the causes not only protects your four walls, but also your health.

The difference

The difference between surface moisture and core moisture

If you notice any of the symptoms of damp on your walls in your living space or basement, it may be either superficial damp or real masonry damp (core damp).

Surface moisture does not penetrate as deeply into the wall, whereas core moisture affects the entire masonry cross-section.

Surface moisture

Damp walls on the surface are usually caused by insufficient air circulation - this affects bathrooms, kitchens, washrooms and cellars. High humidity often prevails here. Increased regular ventilation is the first preventative step against this type of damp.

Core moisture

Surface moisture can also develop into core moisture over a longer period of time. In most cases, however, the origin of the core moisture lies in a structural defect: the lack of a horizontal barrier! In this case, a tight barrier must be installed to interrupt the capillary rise by means of a subsequent structural intervention.

Determine and measure moisture in the wall

As a layman, it is difficult to determine the degree of moisture without any aids.
In principle, the degree of wall moisture can be determined using various measuring methods (CM method, Darr test).

In most cases, however, it is sufficient to take a simple borehole sample from the wall and analyse the drill dust. If the drill dust is crumbly and malleable due to the moisture, there is wall dampness requiring action. If the drill dust is dry and dusty, the wall is dry.

We at HW Mauertrockenlegung save you lengthy and cost-intensive analyses!

You can rely on us, our process and our partners!

Why you should

Why you should have damp walls dried out

Damp walls damage the fabric of the building. In the long term, this leads to the destruction of the brickwork and thus to a reduction in the value of your property. The air pores of the brick are filled with water, which is why it loses a high degree of its heat-insulating ability. Even a moisture absorption of 4% can reduce the thermal insulation by half, which is reflected in rising heating costs!

Interiors are cold and uninhabitable. Furniture and floors are affected.

Damp walls have a negative impact on the indoor climate. The World Health Organization (WHO) reports that in damp and mouldy homes, the strain on the respiratory tract is very high and there is an increased risk of allergies and respiratory diseases.

Damp walls should be renovated and dried out by a professional, because the problem does not solve itself. You can rely on our specially developed and patented process - we will renovate your walls reliably and permanently in the shortest possible time!

Our solution

Our solution for damp walls

Our HW wall drying is one of the most effective and sustainable solutions against damp walls. Rust and acid-resistant stainless steel plates are mechanically driven through the wall and form a permanent horizontal barrier against capillary rising damp.

The most important thing about HW wall drying is that the wall is separated and sealed in just one work step and the flow of force in the wall is never interrupted - subsidence and cracking don't stand a chance!

HW wall drying - horizontal barrier

We use our specially developed, mutually overlapping stainless steel panels for refurbishment, which form a permanently tight, horizontal barrier against capillary rising damp. The arrowhead-like design of the front edge of the insulating panels reduces penetration resistance and surface friction when hammered in. The HW point on the front of the insulating panels means that less impact energy is required - shocks and vibrations are reduced when driving into the wall.

Our maintenance-free horizontal barrier helps reliably and permanently against rising damp. We haven't seen a house twice in 45 years!

Are you looking for a competent partner in your area that you can rely on? We are currently represented by 35 license partners in Europe. Contact us or find our partners in your area yourself.

Drainage of

Drainage of damp walls - your advantages

In addition to eliminating the causes of wall damage and health risks, wall drying also has other advantages.

Here is a summary of the positive aspects of drainage by HW wall drying:

Do you still

Do you still have questions about damp walls?

You may find the answer in our FAQ.