Experts for underground installed air ducts

Insulated air ducts for over 35 years

For over three decades VENTAFLEX air ducts have been successfully installed above- and underground. We have permanently been working on the optimisation of our good products, expanded our supplies system and met many challenges, for example customised special components.

Because of the successful construction projects with VENTAFLEX air ducts for underground installation we have collected valuable information in order to develop an air duct, which is designed to specifically meet the requirements of underground installation.

Construction of a secondary school in Dresden with noisy environment

Air ducts for underground installation supply class rooms with fresh air and creates a quite learning atmosphere: Due to the neighbouring highly frequented street a standard window ventilation was excluded

New construction of an elephant house in Rostock

Air duct system for the transport of air in tropical atmosphere – above – as well as underground

The Liebfrauen church becomes a concert hall, Wernigerode

Room-optimized, underground installed ventilation system for the ventilation and air extraction of the concert room in historical building structure

New construction of a vocational school in Hamburg

Pre-insulated air ducts for underground installation in record time thanks to ideal planning.
Mutual work at the optimisation of the air conduction saves 1/3 of the originally planned budget

Tightly scheduled new construction of a 6-group day care center in Hünfeld

Air ducts for underground installation supply 6 children’s groups with fresh air. Construction start beginning 2020, start of operation beginning 2021: VENTAFLEX is a reliable teamplayer for consistent timing

A hunting castle becomes a clinic, Schleswig-Holstein

Renovation of a listed building und reconstruction to a private psychosomatic clinic, among other things by pre-insulated air ducts for underground installation in the outdoor area

Erdverlegte Luftleitungen für Krankenhaus in Leipzig

Underground air suppy by five duct dimensions for a turnable ventilation of different areas with a total air volume of 8820 m³/h

Top-Downloads

VENTAFLEX catalog 2022

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

Download pdf (15 MB)

Installation 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 (742 KB)

Installation LAVANTUS air duct for underground

Laying the air ducts
Length adjustment of air ducts
Installation LAVANTUS ring seal
Installation LavantusGrip

Download pdf (3 MB)

Top-News

The change in energy policies demands a different technology

Projects where the client has the courage to realise new economic and ecological ideas are the "favourite challenges" of the VENTAFLEX team.

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

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.

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...