few weeks after the start of the heating season notice currently playing some house and apartment owners black dust or black goo on the walls and ceilings. The phenomenon has a name: fogging.
It is unclear how it leads to the formation of unsightly deposits. Uwe Dippold, building biologist and pollution expert from Nuremberg, has at least a suspicion: "It is estimated that there is renovation work on the interaction between construction and house dust." Laminates, vinyl foam wall coverings, PVC floor coverings and wall colors gases, plasticizers, such as solvent or bonding agent, so Dippold. Additionally, we are sometimes unfavorable circumstances such as tobacco smoke or the use of candles. Dippold, "Even radiators and cold spots on the walls, so-called thermal bridges amplify the problem."
why the black dust is often found where old heaters available with high flow temperature or overnight storage devices. Unfortunately, the rapid cleaning is not that often simple: Because when you try to wipe off the pads, the parties must always recognize that the problem will only get worse. An incorrect use of building materials can cause the problem. 
Andreas Karstedt, building biologist and chemist from Bremen, knows the phenomenon from its expert practice: "There are are people who use it as a house paint interior painting do not match, or combine building materials, their components. Since one can sometimes speak of happiness, if only fogging occurs. "The phenomenon is annoying but not usually harmful. One must only donating materials remove it and use more natural materials. course should be in the now customary tight construction, the Do not forget proper ventilation in apartments, the two members of BIOLYSA, a nationwide association of building biologists represented by cross-ventilation of the apartment. - at least three times a day - would not only reduces indoor humidity, which prevent mold growth could. It would also be the pollutant concentration in indoor air significantly reduced, which not only prevent fogging, but the overall health profitable.
In connection with fogging and contaminants in indoor air, the experts also pointed out that in homes with carpeted floors should necessarily use the vacuum cleaner with a HEPA filter so that the pollutants are retained in the filters. For smooth surfaces, wet wipe is applied twice per week. At least if the house has a living with allergies.
Where appropriate, a laboratory analysis of the black films help to narrow down the cause.
support it can in administrative agencies of BIOLYSA get:
Phone: 0700 - BIOLYSAEV - In number: 0700-246597238 or Internet:
http://www.biolysa.de
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