FIRE RATED METAL DOORS
Labeled Fire-Rated metal doors play a critical role in keeping people safe and help minimize property damage during a fire.
Hollow Metal fire rated doors control the spread of fire and smoke for up to 3 hours, and wood for 90 minutes.
Adding glass for sightlines helps evacuate a building safely.. PYRAN® Platinum fire-rated glass are certified by Underwriters Laboratories for fire-protection ratings up to 90 minutes.
Fire Ratings for Commercial Doors
Depending on your choice of metal or wood commercial doors, there are 4 to 5 commonly used ratings.
20 minute, 45 minute or “C”, 60 minute (wood doors only) or 90 minute, also called “B”, and 3 hour or “A” (metal doors only).
Commercial Fire Rated Metal Doors
Fire rated doors must be self-closing using either a door closer or spring hinges. Hinges must be steel bearing type. You cannot use kick-down door holders, rubber wedge holders, chains, or similar items on a fire-rated assembly.
A fire door may be held-open with an electro-magnetic holder or other approved assembly tied into the building fire detection system or with an integral fire detector.
Self-latching is a must for fire rated doors using an approved latching device. Push/pull handles are not allowed.
In most applications it is not permitted to use a deadbolt in combination with another latching device since this would hinder a quick escape.
In-House Commercial Hollow Metal Doors Fabrications
Door Unlimited Inc is equipped with a full service welding & fabrication shop! Making Doors Unlimited Shop your top choice for it’s one-stop-shop advantage.
We offer custom hardware prep, welding, sidelites, transoms & borrow lites as well as windows.