What the lab researches

Multifunctional Facade Lab

Windows, doors and walls: we measure their energy performance.

We use calculations and simulations to predict the energy behaviour of new buildings.

Our research team tests the thermal and energy performance of façade elements, such as windows and doors, walls and façade modules, under stationary and dynamic conditions. Based on this type of experimental testing, we can develop calculation models and simulations that predict the energetic behaviour of new buildings as accurately as possible.

In the calorimeter, we analyse temperature, humidity and air velocity.

Measurements are taken in a calorimeter, a double climate chamber with a protective zone, in combination with a solar simulator that provides continuous light. Temperature, humidity and air speed can be changed in both chambers. The solar radiation level can also be regulated. This allows real conditions to be recreated, both indoors and outdoors.
The calorimeter complies with the ISO 8990 standard and can accommodate test objects up to 3x3x0.5m in size. A system of sensors and measuring devices makes it possible to assess a wide range of parameters, such as the heat transfer coefficient and the heat capacity. This allows the researchers to evaluate the energy performance of active and passive façade elements.

Façade prototypes that generate and exchange energy.

Building envelopes are increasingly used for the generation and exchange of energy. To achieve this, the behaviour of the finished structure must be simulated and studied in advance under the on-site conditions. The laboratory is equipped with a solar simulator and a water circuit to test prototypes of active systems. This allows us to test the heat flow in building envelope components in which photovoltaic panels, solar collectors or panel heating elements are installed.

G-value measurements determine how building envelopes react to solar energy.

In the laboratory, we also take g-value measurements. The g-value describes the ability of the building envelope’s elements to control the thermal energy they receive from the sun. We examine elements that are transparent, semi-transparent or equipped with shading systems. This test offers the following advantages:
• It tests the performance of complex and innovative systems.
• It realistically assesses the energy performance of a new build project or conversion.
• It allows individual elements such as sunshades to be optimised.

Do you want to perform accredited testing activities? Find out more about Eurac Research's Multifunctional Facade Lab here.

Your advantage

Artificial sun and a water circuit: we test how effectively building envelopes can protect against heat and cold.

The key tool

We uncover practically every secret of your façade. With our double-chamber calorimeter, we mimic the external environment on one side and the indoor climate on the other.

Our services

Energy flows best when it is skilfully steered. Because our research approach is networked, we can request additional samples from neighbouring labs at any time.

Explore & learn

Technology sector



Eurac Research

Accredited tests possible?


Contact form

First name

Please fill in this mandatory field.

Last name

Please fill in this mandatory field.


Please fill in this mandatory field.


Please fill in this mandatory field.

I agree to the terms and conditions of the Privacy Policy.

Please agree to our Privacy Policy.

Unfortunately, something went wrong with the form submission. Please try again.

Direct contact: +39 0471 066 648