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Renovation caseold building

Old building material with modern air-conditioning technology

Limited carrying capacity or insufficient space are great challenges when retrofitting existing buildings with modern air-handling systems. In short: Static, space, optics, preservation order requirements and performance play a big role when choosing the ventilation system.

New efficient systems: the combination does it!
When renovating not only the air-handling systems have to be renewed, but also the air ducts. An air-condition-technological system can only prove its performance in successful combination and the energy doesn’t get lost ‘on the way’  - by bad insulation or leakage. The VENTAFLEX® system offers the ideal solution due to material (PUR-rigid foam) and supplies (VentaSnap).



Project example

Overall programme


VENTAFLEX® catalog 2022

VENTAFLEX® catalog 2022

All air duct products, technical details, supplies and installation instructions can be found in our general catalog.

Download pdf (12 MB)
Installation instruction VENTAFLEX® air duct round

Installation instruction VENTAFLEX® air duct round

  • Installation of VENTAFLEX® air ducts with VENTASNAP and VENTAFIX
  • Glueing of VENTAFLEX® air ducts
  • Installation of a compensator for the expansion compensation
Download pdf (827 KB)
Installation instruction VENTAFLEX® air duct for underground installation

Installation instruction VENTAFLEX® air duct for underground installation

  •  Recommended measures for installation

  • Application VentaSnap + adhesion

  • Length adjustment of air ducts

  • Creation of a wall duct

  • Installation wall collar

Download pdf (2 MB)


The change in energy policies demands a different technology

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Every construction plan has its own challenges, because each project demands an individual solution.

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The planning of complex systems is easier to manage, when all necessary components needed for construction are detectable at a glance. That is the only way to put the actual perfect solution together.

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The construction industry depends on a variety of external conditions – at the moment there are delays at many large-scale projects, because not only skilled workers, but also material is not...

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