Deck 37: Ceilings

Question 1

In which types of buildings is the underside of the overhead floor or roof structure and the utility lines hung therefrom exposed, i.e., a separate ceiling framing is not used?

Answer 1

These include highly utilitarian buildings, such as gymnasiums, sports halls, swimming pool buildings, restaurants, etc.

Question 2

In a building where no ceiling is provided and the structure and utilities are exposed,

A)all systems must be carefully designed.
B)on- site coordination of construction is critical.
C)mechanical and electrical subcontractors are allowed easy access and freedom of choice in locating their work.
D)all of the above.
E)B and C only.

Answer 2

D

Question 3

The ceiling provides an excellent opportunity to modulate natural and artificial light.

Answer 3

True

Question 4

It is not possible to use lath and plaster with a suspended ceiling structure.

Question 5

In which structures, are the ceilings generally attached directly to the overhead floor or roof framing and what do they consist of?

Question 6

The strongest metal suspension system is always a properly installed direct- hung system.

Question 7

The design of a ceiling in a large office building calls for a multilevel series of ceiling planes finished with gypsum board. The most likely method for attaching the ceiling to the structure is to

A)use lay- in acoustical tile.
B)nail gypsum board directly to the wood light- frame structure.
C)screw the gypsum board directly to a suspended metal framework.

Question 8

Explain why suspended ceilings (sometimes referred to as drop ceilings or false ceilings)are common in most contemporary commercial buildings.

Question 9

The most common reason for a ceiling is to

A)isolate sound.
B)reflect light.
C)conceal the building structure and overhead utilities.
D)control heat and humidity.
E)provide a sculpted or multilevel surface overhead.

Question 10

All ceilings are formed by suspending a lightweight material from the underside of the structure to provide the interior finish.

Question 11

Acoustical panels and tiles are fabricated using

A)mineral wool, mineral fibers, fiberglass, and/or perlite.
B)fillers, binders, and water.
C)A and B.
D)none of the above.

Question 12

The edges of acoustical panels

A)are designed to rest on the metal suspension system.
B)do not affect the overall pattern of the ceiling.
C)are snapped into extruded plastic shapes.
D)are available in three different profiles.
E)all of the above.

Question 13

Gypsum board is a commonly used finish material. It is typically

A)attached directly to a structural metal or wood light- frame.
B)attached directly to a suspended metal frame.
C)designed to rest on the metal suspension system.
D)all of the above.
E)A and B only.

Question 14

In suspended acoustical ceilings, the grid structure is made of

A)a hardwood such as oak or maple.
B)corrosion- resistant steel tees.
C)extruded aluminum tees.
D)all of the above.
E)B and C only.

Question 15

A direct- hung suspension system is used for the most commonly used suspended ceilings. What does such a system consist of?

Question 16

Diagram and describe the difference between a ceiling that is attached to the building structure and one that is suspended from the building structure.

Question 17

In a suspended ceiling system, steel hanger wires are supplied by the manufacturer already cut to length.

Question 18

Antimicrobial ceiling materials are most likely to be used in a

A)university classroom.
B)hospital or medical laboratory.
C)department store.
D)warehouse.
E)pharmacy.

Question 19

Ceiling materials are essentially limited to drywall, lath and plaster, and acoustical tiles.

Question 20

What does a gypsum board suspended ceiling system in a commercial building consist of?

Question 21

Use a section sketch and notes to illustrate a direct- hung suspended ceiling.

Question 22

Examine the ceiling in one of your classrooms. What type of ceiling is it? Do a section sketch illustrating the parts of the system.

Question 23

Use a sketch and notes to illustrate two methods of attachment when gypsum board is used as a finish ceiling material.