Lichtbandklappe Produktbild

SHEV units in barrel vault rooflights

  • Fire protection and natural ventilation

  • Increased snow loads and multiple flap versions

Submit enquiry Technical details

Fire protection and natural ventilation

Vela-vent, the continuous rooflight flap for INDU LIGHT Topline ELS and Proline, combines fire protection and natural ventilation. Integrated in INDU LIGHT barrel vault rooflights Topline ELS and Proline Vela-vent provides natural ventilation |1|. The approved SHEV device is available as single flap |2| and as double flap |3|‎. 

Increased snow loads and multiple flap versions

Vela-vent is setting new standards regarding opening forces for increased snow loads. Tested in several standard sizes and approved in accordance with EN 12101-2. Vela-vent is available in multiple sizes as single flap and as a double flap. 
Pneumatic opening devices or with 24V technology for an optimized integration in the building management system.






Contact Person

Mr. Benner
+49 7426 5270-46

VdS-approved according to DIN EN 12101-2

INDU LIGHT designs, supplies and installs individually dimensioned SHEV units. We are a specialist business certified according to ISO 9001:2000, a VdS-approved constructor company and an active member of the trade association Tageslicht und Rachschutz e.V.

The CE approval of our products was carried out by VdS institute for fire protection and security. Proven pneumatic technology or 24V technology are available for our SHEV devices.
Beside standard design principles of smoke and heat exhaust units we also consider the standards and guidelines including:

  • DIN 18232
  • VdS guidelines
  • Industrial construction directive



Technical details for continuous Vela-vent

Used purely as a ventilation flap, Vela-vent can be configured to almost any desired set of dimension.
The values quoted here relate to reference natural smoke 


and heat exhaust units (NSHEV) defined in DIN EN 12101-2 or SHEV units in combination with natural ventilation


Dimensions (m)Aa (m2)
pneumatic CO21,10-2,30 x 1,00-1,980,756 - 3,188
elektrical 24 V1,10-2,30 x 1,501,07 - 2,24


Accessories for Vela-vent

Control technology

Control technology

Intelligent control technology integrated in the  building automation system. Drive technologies are available as pnestumatic and electric solution.


Service and professional maintenance

As manufacturer and approved supplier of SHEV systems INDU LIGHT performs regular maintenance. Our professional service technicians verify that SHEV devices and systems are in order and fully functional. The records of the inspections performed are stored and managed by INDU LIGHT. 
By law SHEV systems must be maintained at legally defined inspection intervals. Contact us – we will schedule and arrange maintenance on time.

More information

Fall-through protection

Safety is our number one priority. Therefore we deliver type P1 anchor points for all INDU LIGHT continuous rooflights. This comprises a stainless steel console that is integrated in the eaves structure of the continuous rooflight and is secured to the frame head. It protects personnel from falls and injury when used with PPE. Anchor point IAP1 is a tested class A1 anchor device in accordance with EN 795:1996-07/A1:2000-10 (D) und EN 795:2012-10 (D).

Contact us! We answer your questions about daylight systems, rehabilitation and maintenance.

We offer individual Calculation Service. Prompt and free of charge.