020303b Commercial Doors And Windows Flashcards
What bracing is required for a metal frame in a concrete wall?
Bracing needs to be sufficient to keep the frame level and plumb in two directions.
Our climate of extreme temperatures has led to a tendency for most commercial exterior doors to be metal faced with a core insulating foam. T or F
T
Which gauge are the frames for most exterior galvanized steel made of?
16-gauge
Where is interior bracing placed when positioning a metal door frame in a concrete block wall?
Place internal braces so they are low enough for workers to step over and high enough that they are not a hazard.
What is the role of the carpenter in window installations for a large commercial project?
To prepare or check the rough opening for correct size and construction.
Where are template hinges most commonly used?
Steel exterior doors
What accommodation is made for fastening hinges to steel doors?
They have a steel backing plate welded in place to accept the screws.
What does it mean to pull a door and to throw a door?
Pulling a door makes the clearance smaller between the door and the jamb on the hinge side; throwing a door increases the space.
What are knock-down frames?
The frames are supplied in a knock-down state.
What could you do to straighten a twisted door?
Bent gently back to a flat shape using a block in one corner and pressure in the other.
