Chapter 28

The minimum width of the air space generally used between a brick veneer and a wood stud backup wall is

1 in.

The GFRC skin is typically

1/2 to 3/4 in. thick.

The minimum required width of the air space between a brick veneer and a CMU backup wall is

2 in.

In a brick veneer assembly, vertical expansion joints should be provided at a maximum distance of

25 ft in the field of the wall and 10 ft from a wall's corner.

For a brick veneer that bears on the foundation and continues to the top of the building without any intermediate support, the maximum veneer height is limited to

30 ft.

A bond break such as a polyethylene sheet membrane is generally used between the concrete and bricks in a brick-faced precast concrete curtain wall panel.

False

A lintel angle must be anchored to the building's structural frame.

False

In a brick veneer wall assembly, the wind loads are transferred directly from the veneer to the building's structure.

False

A shelf angle must be anchored to the building's structural frame.

True

GFRC curtain wall panels are generally lighter than the corresponding precast concrete curtain wall panels

True

In general, a CMU-backed brick veneer is more forgiving of construction and workmanship deficiencies than a steel stud-backed brick veneer.

True

A GFRC curtain wall panel consists of

a GFRC skin, a cold formed steel frame and anchors.

The glass fibers used in the GFRC skin are referred to as AR fibers . The term AR is an acronym for

alkali resistant.

In a brick veneer assembly with a steel stud backup wall, the design of studs is generally governed by

any one of the above, depending on the wall

In a brick veneer assembly, flashing is required

at the foundation level, over a lintel angle, over a shelf angle, under a window sill

In a multistory building, shelf angles are typically used at

each floor level.

The connection between the natural stone facing and the backup concrete in a stone-faced precast concrete curtain wall panel is obtained by

flexible steel dowels

In prefabricated brick curtain wall panels, the bricks used are

generally of the same thickness as those used in brick veneer construction.

The term GFRC is an acronym for

glass fiber-reinforced concrete.

A shelf angle in a brick veneer assembly must provide

gravity load support to the veneer

The strength of concrete used in precast concrete curtain walls is generally

greater than or equal to 5,000 psi

A mortar-capturing device in a brick veneer assembly is used

immediately above a flashing

In a brick veneer assembly, weep holes are required at

immediately above the flashing

Prefabricated brick curtain wall panels are generally fabricated

in a masonry contractor's fabrication yard

The anchors in a brick veneer wall assembly provide

lateral load support to the veneer

A steel angle used to support the weight of a brick veneer over an opening is called a

lintel angle.

Precast concrete curtain wall panels are generally

none of the above.

The anchors used in GFRC panels are typically

one-piece anchors

The most efficient weep hole in a brick veneer consists of a

open-head joint.

During the erection of precast concrete curtain wall panels, the panels are leveled. The leveling of the panels is provided in the

panels' bearing supports

The backup wall in a brick veneer wall assembly consists of a

reinforced-concrete wall, CMU wall, wood or steel stud wall

When lintel angles and shelf angles are combined in the same angle in a brick veneer-clad building, the angle should be treated as a

shelf angle anchored to the structural frame of the building

The GFRC skin is obtained by

spraying the mix over a mold

The structural design of precast concrete curtain wall panels is generally the responsibility of the

structural engineer retained by the panel fabricator

The bricks used in brick-faced concrete curtain wall panels are generally

thinner than those used in brick veneer construction.

A typical anchor used with a brick veneer and CMU backup wall assembly consists of a

two-piece anchor, of which one is embedded in the CMU backup wall and the other is embedded in the veneer's mortar joint and two-piece anchor, of which one is an integral part of the joint reinforcement in the CMU backup wall and the other is embedded in the veneer's mortar joint.

The number of bearing supports in a precast concrete curtain wall panel must be

two.

The anchors used to anchor the brick veneer to the backup wall are generally two-piece anchors to allow differential movement between the veneer and the backup

within the plane of the veneer