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Institute of Building Biology + Sustainability IBN

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Measuring airtightness

IBN-Team 10. June 2014 Posts

Our flagship project is a so-called Plusenergiehaus or energy-plus building, which means that more energy is generated (ca. 7500 kWh/year) than consumed (ca. 4700 kWh/year). To reach this goal, the building envelope must be particularly airtight so that heat does not leak to the outside. The blower-door test is carried out twice (for an explanation, […]

Blown-in wood chip insulation

IBN-Team 12. May 2014 Posts

Dedicated cavities between the rafters, in the exterior and interior wood frame wall assemblies of the upper floor as well as in the external thermal insulation composite system on the ground floor are insulated with blown-in wood chip insulation (U-value of 0.040 W/m2K, bulk density ca. 45 kg/m3). This type of insulation—like the installed wood […]

Building biology wiring system

IBN-Team 27. April 2014 Posts

Reducing electrosmog according to the Standard of Building Biology Testing Methods is an important feature of any building based on building biology criteria. ELF electromagnetic fields are minimized by implementing the following strategies: Use of zero-halogen and shielded cables and electrical boxes (including a complete upgrade of any pre-existing wiring) as well as selection of […]

Demagnetizing building steel

IBN-Team 16. March 2014 Posts

In the beginning, the ring beam was designed to be reinforced by a fiberglass-reinforced polymer (FRP). Due to the curved shape of the building, some curved parts were required for which no license was available yet. As an alternative, conventional steel reinforcement was used. These steel rods as well as some steel trusses were properly […]

25 principles of building biology

The new IBN building and the 25 Principles of Building Biology

IBN-Team 1. March 2014 Posts

In January, the construction of the new IBN building got underway. We recommend using the 25 Principles of Building Biology, which were developed by the IBN 30 years ago, as a basis and checklist for the holistic assessment or design of buildings. So what could be more natural than to measure the new IBN building by […]

Building biology testing methods

IBN-Team 25. February 2014 Posts

Prior to entering into a purchase agreement and getting started with the first plans, the property and the existing building were surveyed according to the Standard of Building Biology Testing Methods. The pictures show how Johannes Schmidt, a member of the IBN team, takes measurements of, for example, radio-frequency radiation (RF) and radioactivity.Based on the […]

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The IBN building

For a long time we’ve been searching for a suitable project or plot for the new IBN building. Finally, a ground floor grocery store, built in 1955, which was last used as a beverage market was found. The 620 sqm property includes a small public park in the west with large beautiful deciduous trees.

The ground-floor, circular, curved construction in solid construction (approx. 110 sqm) was extensively renovated, converted and supplemented in 2014 by an upper floor in timber construction and a winter garden with stairs. An allergy-friendly model apartment (52 sqm) was also integrated. This resulted in a total usable area of ​​approx. 250 sqm.

The declared goal in the planning and execution was that, in a holistic sense, a building is created that meets today’s requirements for building biological, healthy and sustainable building. The new building is a plus energy house made from renewable and mineral building materials, with a healthy indoor climate and the best possible reduction of electrosmog. The building is easily accessible by public transport (bus stop in front of the door).

Since 2015, experiences with the building materials used, as well as building services, have been collected, measured and researched in this flagship project.

The accompanying contributions report on various aspects of the construction project.

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Institut für Baubiologie + Nachhaltigkeit IBN

Institut für Baubiologie + Nachhaltigkeit IBN
Erlenaustraße 24, 83022 Rosenheim, Germany

+49 (0)8031 353 920 (Mon – Thu | 9 am – 12 noon CET)

The Institute of Building Biology + Sustainability IBN is financially and politically independent. Its main focus is the education and qualification of Building Biology Consultants IBN (Institut für Baubiologie + Nachhaltigkeit) to promote a holistic, sustainable, ecological, and building biology-based approach to building.

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