DOORS WINDOWS AND GLASS Flashcards
What is the most effective kind of door opening for thermal and acoustical control?
A swinging door… Which is also the most common type
What kind of door has a little window at the top?
A sash
What is a solid core door made of?
Two rails and two stiles framing and inner core of wooden blocks glued together. All this below crossbanding and a face panel.
What gauge steel are steel doors usually made out of?
14 to 20 gauge cold rolled steel, or sometime stainless steel
The bottom portion of the door can be called a threshold or what two other terms?
A sill or a saddle
Why are aluminum doors not used as fire doors?
Low melting point… Oh some aluminum fire doors have a fireproof core
Maximum fire door size
4’ x 10’
What are glass doors made out of?
One half or three-quarter inch thick transparent or obscured tempered glass
A fire door labeled A has a fire rating of how many hours? And how much glazing is permitted? Where?
Three hours, no glazing
Firewalls separating buildings or fire areas with in a building
A fire door labeled B has a fire rating of how many hours? And how much glazing is permitted? Where?
1.5 hours, 100 in.² of glazing
Vertical and closures, fire stairs and elevators
A fire door labeled C has a fire rating of how many hours? And how much glazing is permitted? Where?
3/4 hr, 1296 in.² of glazing
Corridors and partitions
A fire door labeled D has a fire rating of how many hours? And how much glazing is permitted? Where?
1.5 hr, no glazing
Exterior walls, severe fire exposure
A fire door labeled E has a fire rating of how many hours? And how much glazing is permitted? Where?
3/4 hr, 720 in.² of glazing
Exterior walls, moderate fire exposure
Doorknobs are about __ inches from the floor
38
Door poles and panic bolts are about __ inches from the floor
42
Why would the pin within the hinge not be removable?
In security situations