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Radon-safe construction.

What is radon?

What is radon? What makes it so dangerous? And what is the remedy? Our explanatory video will provide you with the most important facts about the naturally occurring radioactive noble gas and show you how you can protect yourself against it.

Radon map of Germany

The radioactive noble gas occurs in concentrations that differ from one region to the next. The radon map of Germany published by the Federal Office for Radiation Protection (BfS) in 2004 shows the areas in which there are increased radon levels.

This is based on very approximate grid measurements of the radon concentration in the soil air as well as in building interiors and outdoors. Although radon blends with the air outdoors, it can still be detected at ground level. Higher concentrations of radon are particularly noticeable in the mountainous regions of Germany.


Statutory reference value for the annual average radon concentration in the air in indoor spaces and at workplaces: 900,000 radon particles can enter a house at the same time through a hole the size of a pinhead.

Radon was discovered in 1900. However this noble gas has been in existence since the beginning of time.

Radon map of Germany

Safe from radon with correct sealing

Choosing the right solutions is crucial for reliable protection when it comes to sealing supply and disposal lines. Professional solutions for entries both for supplying a building and for wastewater disposal are therefore important factors when planning and constructing a building.

Buildings without a basement

Radon can penetrate into a building through the smallest of cracks.

Buildings with a basement

Radon can penetrate into a building through the smallest of cracks.

Radon information to download

All data and facts on the subject of radon and radon-safe buildings can be found in brief form in our Radon booklet.