Fire rated storage buildings

by Inside Logistics Online Staff

Lithium-Ion (li-ion) batteries can be a fire hazard, and require special storage considerations. New Rack Fire Protect (RFP) buildings from Denios US, which are fire rated for two hours at 2000°F (1093°C), are for the storage of li-ion batteries.

Containment minimizes the risk of fire from damaged, malfunctioning, or deep discharged batteries spreading within the workplace and possibly injuring employees. Designed in Germany and proven in hundreds of installations worldwide, they are now manufactured in the United States for North American installations.

RFP fire-rated buildings provide safe and legally compliant storage of flammable and corrosive chemicals and materials. They also provide safe storage of lithium-ion batteries.

Adjustable racking provides the flexibility to store batteries of many shapes and sizes. Single or double-tiered designs keep products organized and correctly separated.

RFP buildings are built in accordance with FM Approval 6049, NFPA, OSHA, EPA-CFR 40, NBCC, NFCC and ETA/21/0642. Bi-directional fire rating provides 2-hour fire protection. They can be placed inside or outside (subject to distance requirements), making RFP ideal for the storage of batteries, as well as sealed and closed containers of flammable and water-polluting substances.

Rugged construction

Manufactured using state-of-the-art technology, including new laser cutting and metal bending machinery, RFP buildings use only tested and approved components. They are based on a fully galvannealed panelized construction, insulated with fireproof, five-inch mineral wool panels (A class material, non-combustible).

The Durathane 2-part RAL 9002 (Grey-White) paint ensures long-lasting corrosion protection inside and out. This colour helps prevent the absorption of sunlight and consequent heating of the external surfaces, so the building is better protected from the influence of external temperatures.

Heating and air conditioning equipment can be added to further protect the contents. Each building is equipped with a 1.5   hour per FM Global fire-rated roll-up door which is FM approved and UL-listed. Each structure meets the structural requirements for the installation location (wind and snow loads). Roof drainage prevents water damage.


Denios engineers can aid in selecting HVAC technology to regulate the climate inside the RFP. Stored materials are then protected from harmful temperature fluctuations for increased shelf life. Technical ventilation can be added to ensure 150 cubic feet per minute air changes.

Additionally, monitoring controls can be added to provide visual and audio annunciation of measured data deviations, which are clearly presented on the easy-to-use NEMA 3R touch panels that are suitable for indoor or outdoor use. Optional multi-sensor fire detectors detect smoke and fire for the fastest response.

Denios offers wet or dry fire suppression systems that provide added safety in the RFP. Internal bonding and external grounding connections are available.

The RFP is for larger volume users. For smaller quantities of li-ion batteries, Denios offers a full line of storage and charging cabinets as well as transport boxes.