If the requirement is for category b the frames must have the intumescent seal applied to the rabbet of the frame.
B label hollow metal door.
C labeled steel doors are used primarily for openings from a corridor into another room in the same building.
B label 1 hour c label hour d.
C label hour rating for 1 hour wall.
These doors are usually used for stairwell doors but are sometimes used at all the rated walls in a building.
1 1 2 hour rating.
Prior to shipment label each door and frame to show location size door swing and other pertinent information.
These doors are used for openings in walls separating buildings that are joined together.
Most labeled doors will have an a b or c label.
1 7 storage and handling a.
Hollow metal doors and frames p o.
When combined all of the components of the door form an assembly that protects the opening.
Protect from rust and damage during storage and erection until completion.
We are a ul certified fire label shop and can label our hollow metal doors and frames with up to 3 hour fire ratings.
Fasten temporary steel spreaders across the bottom of each door frame.
Fire rated hollow metal frames complete fire rated frame information including a b and c label frames along with the requirements of a fire rated opening.
For category a the intumescent seal must be built into the door thus hidden from plain view.
There are some basic requirements for an opening before it can be classified as fire rated.
B labeled steel doors are used primarily for stairwell doors and sometimes are used for other doors in a building i e.
Hurricane wind load testing fbc wind load approvals on our doors and frames difference between fbc approvals and noa s wind speed to design pressure chart wind borne debris region.
Fire rated wood doors are ordered in as needed.
For wood doors with 20 45 60 90 minute ratings the rule is simple.
For this reason all components of the door must include a rating label including the door panel the door frame locksets gaskets hinges and door protection plates.
We keep 18 gauge hollow metal doors in stock with 16 and 14 gauge hollow metal frames.
In other cases the entire assembly including all hardware has a single rating.
Hollow metal doors are shown to have superior performance for strength and durability compared to the alternate materials.
B label 1 hour rating for 2 hour wall.
Mechanical or electrical rooms.
Box 7269 monroe la 71211 318 361 0796 fax 318 323 5068 dhi door and hardware institute ul door swing chart approval distributor single doors pairs of doors no.
Metal doors are more sanitary much easier to maintain and can withstand more abuse than wood or aluminum.
Store doors and frames at the site under cover.
Revision date drawn.
The gray primer finish is suitable for painting.
No glass is allowed in these doors.
