The Professional Association of German Building Biologists VDB e. V.

  • is a Germany-wide network of experts for detection, investigation and prevention of health risks  associated with chemical, microbiological and physical contaminants indoors.
  • promotes the education and quality assurance of its members and contributes to the standardization and widespread application of the building biology methods of operation (e.g. VDB guidelines).
  • supports as a professional association economic and professional interests of its members and works on German and international platforms.
  • rovides experts and supports members as a network to exchange, knowledge, ideas, and experience.
  • provides a free telephone consulting service for the public 0049 4183 - 77 35 301 from Monday to Friday (9 a. m. to 4 p. m.) and an on-line search option to find certified building biologists nearby

Building Biology (Baubiologie)

The conditions of the indoor environment have an important impact on human health. Environmental problems resulting in adverse health effects in the occupants are frequently based on physical, chemical and/or microbial exposures. Due to the large amount of time we spend indoors, reported to be up to 90 percent of the day, further investigation of our buildings, products, and technologies and their impact on human health is needed for consumer protection and to develop exposure minimization strategies.

Indoor chemistry consists mainly of organochemical mixtures of additives and technical residues from building materials, interior design products, treatments and furniture. Formaldehyde, volatile and semi-volatile organic compounds such as solvents, pesticides, flame retardants, plasticizers, organometals, polyaromatic hydrocarbons, polychlorinated biphenyls in the air and house dust, bioaerosols, particles, insulation fibers, HVAC systems, and odors contribute to IAQ problems.

Scientific research has shown that microbial contamination is a significant source of poor indoor air quality and is associated with health problems. Many typical indoor mold species act as allergens and irritants. Toxic and odor producing chemicals can be released by some microorganisms as MVOCs, mycotoxins and endotoxins. Building damage, construction defects and poor building ventilation are the major reasons for moisture related microbial indoor exposures.

In the physical field, the impact of non-ionizing radiation is gaining more attention. The scientific community has presented many studies reporting the possible adverse health effects of electromagnetic field (ELF, RF) exposure below the threshold of body tissue heating. Ionizing radiation is another important contributing factor to an unhealthy indoor environment. High levels of lung-cancer related radon gas in buildings can exceed national and international guidelines and recommendation thresholds.

Association Structure

The most important event of the association is the Annual General Convention where members elect the Board of Directors. The Board is supported by management and staff of the office. Technical committees are formed and are the overseeing experts for "Quality Assurance" in the sections "Chemistry", "Microbiology" and "Physics". Each VDB member can actively participate in the content design of technical meetings and other subject-related tasks.


Networking as a multidisciplinary cooperation is important not only for our members, but also for us as an association. We appreciate the interdisciplinary approach as a broad basis and therefore strive for cooperation with other national and international associations, environmental health professionals, lawyers and building experts.

Our members / experts

  • perform building biology investigations for physical, chemical and microbiological aspects with the goal of identifying avoidable indoor environmental pollution, and developing and accompanying effective remediation strategies.
  • perform their measurements and analysis with reproducible scientific methods and integrate the most up to date standards of practice through ongoing training in their field.
  • commit to extensive overview and thorough training and quality assurance.
  • commit to the use of measuring and sampling devices that are subject to regular and documented quality assurance programs through calibration, comparison measurements, and ring tests.
  • can apply for certification as "VDB-certified experts for biology" according to the specifications of the VDB. The quality assurance essentially corresponds to the DIN EN ISO / IEC 17025 guideline.


Feel free to contact our managing director Sabine Müller-Dietrich, if you have any questions about our association. Please find details below.

VDB - we understand buildings!