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- DAFA AirStop System
  Vapor barriers and accessories
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- DAFA Radon System
  Protection against radon gas
- DAFA joint sealing solutions
  Seal around windows & doors
- DAFA Facade Kit
  Sealing solutions for facades
- DAFA window & door sealing
  Sealings for new and existing windows & doors
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  Strong product match for the construction industry
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  Sealed systems, solutions, and products that contribute to energy savings
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  For use in DGNB certified buildings.
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  For use in DGNB certified buildings.
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- About DBS
  Sealed systems, solutions, and products that contribute to energy savings
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  More than 80 years of dedication and focus.
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DAFA Radon System™

Complete system for protection against harmful radon gas.

DAFA Radon System™

A complete system is needed to protect against harmful radon gas. The DAFA Radon System prevents radon gases from entering buildings. The products in the system are proven and fulfil the applicable requirements throughout the Nordic region.

What is Radon?

A naturally occurring radioactive gas formed when the radioactive element radium decays, it is found in the soil, with the content varying between regions. The main source for humans is the air that seeps into houses from the ground beneath buildings.

Products in DAFA Radon System

DAFA radon barrier

DAFA radon barrier ensures an effective airtight radon and moisture-resistant seal.

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DAFA DPC

DAFA DPC can be used as a radon barrier at the foundation when correctly installed.

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DAFA butyl tape for radon barriers

DAFA butyl tape is an elastic butyl sealing tape for affixing radon barriers

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DAFA UV tape for radon barriers

DAFA UV tape is ideal for taping radon barriers

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DAFA Multi Sealing for radon barriers

DAFA Multi Sealing is an extruded special butyl sealing tape coated with stretch foil

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DAFA UV Radon pipe collar

DAFA UV Radon pipe collar is a patented, airtight solution for penetrations through radon barriers

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DAFA UV Radon cable collar

The cable collar is used to provide an airtight seal of the Radon barrier around cable conduits and outlets.

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DAFA Renovation Collar

DAFA Renovation Collar is an extremely flexible sealing solution used for air-tight sealing

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DAFA radon sump

DAFA radon sump serves as a collection point for radon gas before it is vented away.

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DAFA liquid Radon sealant

DAFA liquid Radon sealant ensures an effective radon, air and moisture seal around installation penetrations

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DAFA Radon flexible molding

DAFA Radon flexible molding is a flexible PE foam strip designed to hold 300 ml of DAFA Radon sealing compound during the curing process

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DAFA radon corner

DAFA radon corners are used to easily and securely seal the radon barrier at the corners

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DAFA universal outdoor adhesive

DAFA universal outdoor adhesive is a specially made adhesive with excellent adhesive properties.

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DAFA Butyl 200 joint sealant

Butyl 200 is a non-hardening joint sealant used for sealing in a range of structures.

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Need advice or got questions?

Competences to help all parties - in all phases of construction. Use this form to contact our experts.

DAFA Radon System brochure

Product Catalogue

DAFA Radon movie

See how the system works