The three litre house is a pilot project started by Luwoge- BASF’s building company, in the Brunck district of the town Ludwigshafen in Germany in the 1990s. In view of the modernization of this district’s houses, an entire building schedule was designed having as its goal the consumption of only 3 litres of heating petrol fuel per m2 annually.

After three years of study, the demands in heating fuel are less than the original plan, reaching 2.6 litres per m2 annually and exceeding the original expectations of the programme. Its success is based on the use of special thermal insulation and, in particular, of Neopor® thermal insulation boards. 

The old buildings had been insulated with Neopor panels of at least 20cm width.Neopor® has higher thermal insulation properties than other conventional insulation materials. This is due to the small graphite carbon particles it contains and which reflect and absorb thermal radiation, thus reducing thermal conductivity. This allows the silvery- grey Neopor® panel, which contains definitely less material, to provide the insulation of a different panel of twice its weight. This in turn is in favour of the environment as well as the contractor. A ton of Neopor® in a 3 litre house, for example, can save up to 1260 litres of heating fuel per year.

Neopor® clearly has less impact on the environment. This is due to the fact that it requires 20% less volume in order to attain the same density. Less volume requires less transportation and processing, so the work at the building site is more efficient and less costly. The end customers also benefit from higher quality insulation at a low cost, not to mention the high grade of friendliness to the environment.

Consequently, Neopor® is the most efficient way to insulate.