FAQ

An expert may use building material data other than that in the LuxEeB-H software, namely: 

•  Ökobau.dat 2016 in accordance with standard EN 15804 (edition of 18.05.2016)
• or the manufacturer's EPD (Environmental Product Declaration) in accordance with standard EN 15804 

Should it prove advantageous to use an EPD for a specific product, experts can use the Icalc calculator provided by the Ministry of Sustainable Development and Infrastructure, which can be downloaded from www.Klima-Agence.lu. 

In the case of individual calculations made by the expert, the values required for calculation of the environmental indicators must be filled in on sheet no. 4 of the Icalc calculator.

Then the environmental indicators of the specific product must be manually transcribed into the U-value calculation sheet in the LuxEeb-H software. 

General reminder: Any constituent layer (insulation, membranes, wood, blocks, panels) may optionally be calculated using this method. However, using an EPD for a specific product is not the primary method to be used by experts. In order to make the calculation of environmental indicators as simple as possible, a database is available in the Lux-Eeb-H software and all the values entered therein can be used for the calculation of environmental indicators. 

When improving building energy efficiency, insulation measures have the highest priority. No other measure can save as much energy for heating.

Several studies demonstrate that the production of insulation materials consumes much less energy than is saved later. Even with 30-centimetre thick insulation materials, such as polystyrene, the production energy required is already amortised after about three years.

No. Boreholes drilled for surface geothermal energy cannot under any circumstances trigger an earthquake. Nor has a geothermal probe ever been observed to have been damaged by an earthquake.

Under the new rules for the installation of geothermal probes, damage can be practically excluded if the rules are carefully observed.