It is best to insulate or re-insulate our buildings as efficiently as possible. Renovating an existing old house energy-neutral does not have to be very difficult or expensive. However, you have to take into account a number of building physics phenomena

We try to clarify the influence of the vapor pressure difference and the associated dew point condensation in a house and the insulation. What is important when choosing insulation material and what are the minimum requirements for insulation value and energy performance?

This handbook describes simple solutions for renovation, new construction, timber frame construction or industrial construction, taking into account the building physical properties, moisture production and moisture transport through the building.