A house needs a winter coat

A house mut be robust and offer protection. This can only happen if the house protects itself on the outside: as with a down jacket.

Many different materials are used in making the walls of a house: bricks, cement, glass, wood. A house must be solidly built, offering protection. Protection in particular from cold, heat, water and sound. This happens only when the house protects itself from outside: as with a down coat. To insulate a house means to keep the warmth inside. It is a good sign when a lot of snow is lying on a roof: the insulation works – the warmth stays inside.

Thermal insulation is above all protection from the cold because the warmth cannot escape. Well-insulated houses can be heated with the equivalent energy of a 100-watt light bult.

A lot more energy is required to cool a building than to heat it. The sun’s rays cause high temperatures on the roof (about 80 degrees). It should not be so hot in the rooms below the roof. The aim is to retain the heat until ventilation can take place in the evening. The phase-lag is calculated to find out if that functions with the intended building materials.

Playing and running about can sometimes be loud. The acoustic protection in the interior walls and ceilings serves as insulation so that neighbours and family are not disturbed.

Click here for the video with our ISOCELL fairy about: A house needs a winter coat | 1:07 min