Side Folding Accordion Doors

Side Folding Accordion Products are available for minimal headroom openings of virtually any width. Available in three models: TranZform Fire, TranZform Sound and TranZform Space.

TranZform® Fire

Accordion Folding Fire Door, Model ERP10

Designed to provide automatic closing in the event of fire detection, TranZform Fire units are rated physical fire barriers that protect openings with minimal headroom from the spread of fire and smoke. TranZform Fire units can be used in openings that are part of a required means of egress. Its double track / double wall panel design features fire retardant, flexible header and floor seals attached to the top and bottom of the panels to protect against the passage of air and smoke. Up to 3 hour UL Classified fire, UL "S" classified smoke ratings and FM ratings available. With a clearly marked vertical panic bar provided as standard, TranZform Fire units are designed to comply with the American with Disabilities Act accessibility standards. STC 41.

TranZform® Sound

Accordion Folding Partition, Model ESP20

In addition to providing privacy and security separation, Cornell’s TranZform Sound units offer unparalleled sound control. Its double track / double wall panel design allows both interior walls to be completely covered with continuous blankets of sound absorbing material. TranZform Sound achieved an STC 45 when tested to today’s ASTM E90 standards by an independent laboratory. When Noise Isolation Class (NIC) field tested in the same opening as a competitor’s product that claims the best sound control in the industry with a higher listed STC rating, Cornell’s TranZform Sound product emerged as the acoustic control champion.

TranZform® Space

Accordion Folding Partition, Model ESP10

Though similar in finished appearance, TranZform Space units feature a single wall panel construction in a finish as selected by the end user. Use in areas where convenient separation of space is desired, but fire control or higher level acoustic control is not a concern, such as off hour pedestrian control, closets and storage areas.

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