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Fri: 8:00 a.m. – 13:30 p.m.

Comparison to conventional duct

Air ducts for air conduction in buildings, at the facade or on the roof




Advantages of VENTAFLEX air ducts at a glance


Duct type used
for air transport
VENTAFLEX air duct
highly insulated rigid foam
Spiral duct
galvanized steel 
Spiral duct
stainless steel
Time saving
at installation
pre-insulated air duct

has to be insulated on-site

has to be insulated on-site
Chemical resistance••••••
Thermal protection•••
Weight saving•••

Application in the hygiene sector
e.g. food industry, swimming pools,
laboratories, retirement homes,
rehabilitation clinics


Legend:     • = average     •• = good     ••• = excellent     – = not sufficient or not existent

*The VENTAFLEX air ducts are certified according to EN 16798-3 class ATC2/ tightness class D and according to VDI 6022


Download comparison air ducts



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VENTAFLEX Calalog 2023

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

• Installation of VENTAFLEX air ducts with VENTASNAP and VENTAFIX
• Glueing of VENTAFLEX air ducts
• Installation of a compensator for the expansion compensation

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