RadonTec | AlphaBlock4+

Item number: 32-006

395,00 €

including 19% VAT. , no shipping costs

Shipping time: 2 - 3 workdays


AlphaBlock 4+ for radon-proof renovation of existing buildings and waterproofing of new Buildings

The certified radon foil AlphaBlock 4+ can be used for the renovation of existing buildings as well as for the sealing of new buildings. The adhesive strips make installation uncomplicated and quick.

In the case of uneven substrates in existing buildings and depending on the floor structure of the new building, we recommend the additional installation of RadonTec protective fleece despite the already integrated fleece. For detailed information, please refer to the respective installation instructions.

The additional sealing of the bonding points is done by the radon-proof AlphaTape.

AlphaSeal sealing slurry is used for radon-proof bonding of the AlphaBlock 4+ film to the walls or floor slab. It is suitable for vertical and horizontal application both indoors and outdoors.

Regardless of the application site, every penetration (cable, pipe entries, grounding lugs, etc.) must be sealed radon-proof. We recommend the radon-proof adhesive sleeves AlphaColl, which are available in various diameters.


Existing building interior renovation AlphaBlock 4+

AlphaBlock 4+ is a bitumen-free radon foil for radon-proof interior renovation. The radon barrier is laid in a trough-like manner in the room and bonded to the walls with AlphaSeal sealing slurry.

Installation under the screed: with uneven subfloor with additional radon fleece.

Laying above the screed: not under floor coverings that have to be glued down


New building waterproofing with AlphaBlock 4+

In the floor construction of a new building there are several possibilities to integrate the AlphaBlock 4+ radon foil. The various alternatives are listed in the processing instructions.


Technical Details

  • Radon leakage test by IAF-Radioökologie GmbH: foil and adhesive joints
  • Tested: DIN EN 14909 and DIN EN 13967
  • Running meter 50 m
  • Width 1,20 m
  • Thickness 0.8 mm
  • Weight approx. 20kg / roll


Delivery Details

  • 60 m² per roll
  • Delivery by the roll only.
  • Part quantities not possible.
  • Shipping as bulky goods, separate transport costs possible.
  • Delivery time approx. 3-5 working days


RadonTec | AlphaBlock 4+ Datasheet DE

RadonTec | AlphaBlock 4+ Datasheet EN

RadonTec | AlphaBlock 4+ New Building Processing Instructions DE

RadonTec | AlphaBlock 4+ New Building Processing Instructions EN

RadonTec | AlphaBlock 4+ Existing Building Processing Instructions DE

RadonTec | AlphaBlock 4+ Existing Building Processing Instructions EN

RadonTec | AlphaBlock 4+ Flyer DE

RadonTec | AlphaBlock 4+ Flyer EN


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