Ventilation ceiling with a difference

The WASGAU supermarkets, which belong to the REWE Group, are to become larger and more attractive. For this purpose, a catering concept based on “green-building aspects” was designed for the area in front of the checkout. The market in Annweiler in the Palatinate made the start with climate-neutral refrigerators and freezers, LED lighting and advanced waste technology.

Rentschler Reven supplied an integrated metal ventilation ceiling with an exhaust air volume of 7,200 m3/h for the air handling in the front cooking zone. The unusual thing about this project: The ceiling is suspended in a self-supporting steel frame instead of hanging from the ceiling of the lightweight hall. 

The ventilation ceiling is suspended in a stationary steel skeleton
The ventilation ceiling is suspended in a stationary steel skeleton

The ventilation company Ronald Christ GmbH from Münchweiler and ceiling manufacturer Rentschler Reven worked hand in hand with the steelwork company. The largely prefabricated ceiling elements and a stationary fire-extinguishing system were installed within 14 days. The ceiling is constructed so that the exhaust air flows into a condensate-tight welded duct and does not come into contact with the building structure anywhere. The supply air oozes out of peripheral low-velocity outlets and flows downwards with low impulse. Draughts are thus avoided.

Powder-coated ceiling with ceiling extractors, fire-extinguishing system and supply air units
Powder-coated ceiling with ceiling extractors, fire-extinguishing system and supply air units

The ceiling has a black powder coating and is equipped with a Reven odour separator in the exhaust duct on the roof. The open kitchen mainly offers barbecues, sandwiches and tarte flambée from the stone oven as well as quick business lunch. If the new catering concept with the free-standing ventilation ceiling is accepted, it will be successively adopted by other WASGAU supermarkets.

Exhaust air system with integrated air cleaner and odor trap
Exhaust air system with integrated air cleaner and odor trap