Fire Rated Doors With Louvers

Fm factory mutual does not allow the use of louvers in fire rated doors.

Fire rated doors with louvers.

Fusible link louvers are a great way to add additional ventilation to a room or closet door that would otherwise be closed off to maintain the integrity of the firewall. Our fire rated doors with louvers can also be used on a mechanical closet to seal off the room in the event of a fire. Model 1900a is rated for use in fire doors up to 1 1 2 hour rating. Air louvers 1900a 20x12 b fire rated metal door louver adjustable with fusible link mineral bronze finish.

Louvers must be located in the bottom half of the door. Doors with louvers can only be used in equipment and mechanical areas of the building. Fire rated doors can be prepared for one listed fire rated louver. Also available up to 2 1 2 64mm door to maintain fire rating.

Self attaching product fastens the auxiliary frame to the louver core thru the door cutout eliminating the need to drill holes in the door door thickness. The fire shutters are ideal for small openings that require fire rated protection such as school. Consult with local authority having jurisdiction ahj to determine appropriate standards. It seems it should be interpreted visa versa as permitted with fire rated barrier.

I m trying to make sense whether or not louvers air transfer openings in fire rated doors are allowed in fire rated barriers. Commercial fire rated doors with louvers. 18 ga 1 2mm cold rolled steel finish. 18 gauge crs frame.

There are two additional types of louvers available for use on fire rated doors but they would require a variance from the local code official since they are not specifically allowed by the codes. Can ulc s104 nfpa252 ubc 7 2 94 ul10 b ul10 c. 1 3 4 44mm is standard. Constructed from 18 gauge steel this adjustable z blade fusible link louver is intended for use in fire rated commercial door applications.

Installed in accordance with nfpa 80. Louver frame will be labeled with listing mark. Model 1900 a is rated for use in fire doors up to 1 1 2 hour rating. Louvers may be provided for classified hollow metal type and composite type fire doors.

The 1900 series steel fire rated louver door insert adds 45 free flow air ventilation to fire rated doors. Louvers may be provided for classified hollow metal type and. Louver size shall not exceed maximum width and height shall not be less than 10 and 6 respectively. Alpine s fire shut rolling fire shutters smoke shutters are fire rated and classified by underwriter s laboratories for up to 3 hours of fire rated fire protection for your window.

Although it seems clear that in incidental uses the cbc table 509 4 2 states doors shall not have air transfer openings when an auto sprinkler is permitted with ought fire barrier. This fire shutter can be operated manually or with a motor and is activated by the melting of a fusible link.