Understanding Fire Door Ratings

The most recent fire doors added to our offering are rated for Positive Pressure. Amanda Hergenreder explains a Neutral Pressure and a Positive Pressure rating for fire doors.
NOTE: It is important to check all local building codes before ordering and installing a fire door to make sure you are choosing the correct rating and options for your scenario.
Fire Door Testing Video Source: • Fire Door Safety Testing
Hose Stream Test Video Source: • UL Fire Door Testing |...
In addition to the designs shown in this video, you can see many others in Reeb’s in-stock product catalogs: reeb.com/catalogs
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For more information about anything door related, visit the Reeb Learning Center at learn.reeb.com/
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[@Russia_Moscow_countryhuman]

Thank you for helping me understand this!

[@fdggfgdfgd251]

pretty great explanation. u mention neutral and positive zone.
...now .. for alot of residential condominums,, the suite doors may have large gaps at the bottom.
if the room is completely filled or completely positive pressure, alot of smoke with flow through this too...
any requirements for the overall gaps?

[@chaincommander5980]

Thank you for the wonderful summary the end was pretty funny! QUESTION: For my commercial building I am looking for 1 single & 1 double door 45 minute fire rated fiber glass doors? Are metal doors cheaper or better? If you have these doors can you attach your link and contact information thank you! CC