An unpredictable journeyman
The “real house sponge” (Serpula lacrymans) behaves as an unpredictable journeyman. Even in cases where he already seemed successful, he can turn up again. Already two hundred years ago there were extensive treatises on the life, occurrence and the destructive action of this fungus. It can grow even at a relatively low level of wood moisture and even attack almost dry wood when it is simultaneously settled in a different area with higher humidity. With the aid of its strand mycelium or the so-called strands, the real house sponge can spread over long stretches, thereby also wood-free substances overgrown many meters. No wonder every builder shrugs when the real house sponge is mentioned.
Recently made in the press a report circulating that many mold remediation are not conducted properly. “Three quarters of the architect, building surveyor, construction and renovation contractor and lawyers assume that 70 percent of the renovations are flawed,” reported the director of the Institute Peridomus Dr. Gerhard Führer from Himmelstadt/Germany. Even if there should be ten or twenty percent fewer cases, the incidence of improper renovations would be a disaster for the affected residents. So-called “brush renovations” mean nothing else than that the moisture damage was simply painted over. The new tenant sees the problem not at first attempt and the landlord has his first sleep. Continue reading
In the particular case due to insufficient sealing masonry water of a multi-family house had fallen into the basement and had soaked a storage area of eighty square meters. Under the cement floor is a layer of insulation made of polystyrene. The added expert had to decide whether the floor is completely to remove or if drying measures are sufficient. The nature and severity of the mold colonization is to be analyzed by the microbiological laboratory.
Planning and implementation of the component opening
For larger areas, the sampling points are to be determined in advance and draw in a map. It has proven to number the holes in the plan. The various sampling bags have the same number, thus allowing the unambiguous assignment and subsequent documentation. Opening device for core drilling can be carried out with a diameter of 5-8 cm. A powerful and sharp drill bits makes the job easy. Continue reading
Typical symptoms of an allergy to molds are redness and itching, hives, conjunctivitis, sneezing and runny nose and asthma. If these symptoms, especially in the warm season, with moist warm weather, in humid areas, in rooms with mold spots or areas where plants or contact with the waste, which may be an indication of a mold sensitivity. Since molds occur regularly but in the outdoor and indoor air, to have a tentative diagnosis of “mold sensitivity” further studies are made. Continue reading
If a conservatory belongs to property, the tenant should consider the quality of this extension. Otherwise there is the danger that might at a later mold colonization the landlord cause an incorrect user behavior in the field. Depending on whether it is a hot or cold conservatory, the type of use in the lease is to be regulated.
A case from practice shows, what problems could occur, when a family moves into a not yet sufficiently dry house. The property was given free by the developer after a construction period of six months. Floor coverings were laid and baseboards attached. Furniture and moving box stood in the rooms. A few weeks after moving in, the residents discovered black spots on the walls and partially moldy furniture.