Do you have trouble with mould, damp walls and mason work? This blog may help you!

Walls need to breathe!

Geposted am | Februar 23, 2010

Plaster and paint are a kind of skin to our four walls. They are using the same function like skin called balancing function. If a wall or plaster surface is able to absorb dampness-apexes which we produce daily it lowers the risk for condensation water and even mould or mould spores.
Plaster and paints used to be produced of natural materials for centuries and even millenniums. Since there are emulsion paints including chemical binders and all sorts of plastics or artificial substances our habitable systems become worse conditions.

Mould and mould spores are also known as asbestos of the 21. century! Meanwhile they have become one of the most causes for todays health problems in our homes.
Since the chemistry lobby has been able to influence legislations of excessive sealing and insulations the German Bundestag has become a kind of a trendsetter of “unhealthy living”.
While experienced and skilled craftsmen exchanging old wooden windows for synthetic windows you will notice them removing strips of the rubber seals. So a little air exchange is possible.
So be careful if so-called experts are looking to find even the last air slot by using Blower Door Measurements. Using this method will cause that your house becomes a Cheese Bell, which is absolutely sealed without any air exchange.
Don’t let your flat make you sick!

Now your flat has no air exchange anymore and so moisture can only settle on the walls. In case your walls are painted with synthetic coating you’ll soon get trouble with damp walls or even mould!

Walls need to breathe (also called diffusivity). If this feature is taken because you painted your walls with synthetic coating, you have to make sure your flat gets enough ventilation. But this seems to be the main problem:
Most of us are employed and when we’re coming back home in the evening we would start cooking. No surprise that high humidity is produced especially in the evening while the heating was lowered in the daytime.

Synthetic coatings and plaster as such as condensation water is like a feast for mould and its development.
Mould which can be noticed on the walls surface is only one third of all damages. We won’t notice another third because it’s grown into the mason work. Experts call it mycelium, which is a mass of fungi branching.
Mould spores which have spread through air are the last third of pollution we’re not able to see. We would breathe in those spores including mould toxins, which can cause harm to our health and body. Our body is used to most of all sorts of mould but a few can become dangerous for us or cause asthma or respiratory diseases. Especially sensitive people are vulnerable for diseases or allergies caused by mould and its spores.

It’s true: Walls need to breathe and we need to get high humidity out of our flats and houses. Solutions are intermittent ventilation or the lastest airing systems.

Werner Büsch ECODRY