Testing | Checking | Measuring

The contribution of weakly bounded protons in a material can be determined with this method. Therefore the moisture distribution at a certain time in materials or a combination of materials can be determined. Also the changes of the profiles, e.g., during a water uptake experiment or during a drying experiment, can be determined. The procedure can be used to determine the penetration depth of hydrophobic agents, impregnations or stone strengthening agents.

The water absorption coefficient is used to evaluate the capillary water uptake of building materials and an important data to estimate moisture protection of constructions. With the knowledge of the water absorption coefficient the calculation of the capillary transport coefficients for the water uptake is possible. These coefficients are used in simulations with WUFI®.

Pitched roof constructions with between and top rafter insulation or combinations: solutions for gableboard or eaves, solar systems.

Virtual window for windowless interiors

The true density of a material is defined as the mass of the dry material related to the volume of the solid matrix, which means minus the free accessible pore volume. The pore volume of the material sample is measured the heliumpycnometer. The porosity of a material can be calculated by knowing the bulk and true density.

Investigation of thermal conductivity λ, thermal resistance R, and thermal transmittance U by the guarded hot plate apparatus.

Transferring characteristic data obtained from laboratory samples to the entire façade reaches its limits where complex, inhomogeneous structures are concerned. To evaluate the physical characteristics of such façades, in addition to laboratory tests, measurements can be carried out at the VERU Modular Test Facility for Energy and Indoor Environment Investigations on the Fraunhofer IBP field test site in Holzkirchen.

Outdoor exposure for the investigation of microbial growth on building component surfaces.

Dilatometry is a method of thermal analysis, particularly a method of thermomechanical analysis. It is used to measure the relative dimensional changes of materials and construction materials.

Material odors and unexpected odor impressions in indoor environments can cause irritation and raise health concerns among users. Manufacturers of construction products and materials for vehicle interiors therefore strive to optimize the odor of their products to prevent user discomfort.

Indoor air samples are collected on suitable adsorbers and adapted to each specific issue, and then analyzed in the laboratory. The identified substances and their concentrations in the indoor air are compared against reference or recommended values. If irregularities are detected, material samples can be taken and analyzed to identify the sources of indoor air pollution.

The water vapor transmission of building materials is one of the most important characteristics to estimate moisture behavior of constructions. In particular prevention of condensation and the drying of constructions are controlled by the water vapor transmission properties.