THRESHOLD FIRE RATED DOOR

RELATED FAQS

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Answer
The 6111 electric strike can be used only on non rated openings less bottom rod with pullman top latch (use ES prefix when ordering device). Device back set will change to match the centerline of t...
Not for use in fire rated openings.
Maximum glass light sizes for 3 hour fire doors is as follows: Wire glass - not approved for use in 3 hour fire doors. Ceramic glass: UL & ITS/WH allow one (1) light with 100 square inc...
Maximum glass light size for a 90 minute (1 1/2 hour) door depends on the type of glass being installed. Wire glass = 100 square inches is max exposed glass when wire glass is used. Note - ma...
The 6223-FSE electric strike is fire rated for pairs of wood doors, but check with wood door manufacturer to see if they have been approved for this application.
Astragals are required on: 3 hour fire rated pairs: Double doors - swinging in the same direction Double Egress - swinging in opposite directions Fire rated Dutch Doors Fire rated 1 3/4" t...
Non fire rated doors can be furnished with a maximum 3" diameter hole for viewer preparations. Fire rated doors have a 3/4" maximum holes size unless otherwise listed by UL or ITS/WHI. Viewers mus...
The AD and CO locks both have a 3 hour fire door rating. Please see URL for more info.  UL Fire Rating List
The five most common cores are honeycomb, polystyrene, polyurethane, steel stiffened, and temperature rise. Honeycomb core doors are used for interior and exterior openings where high thermal...