Question 1

A backup wall is required in a(n)

Accepted Answer

A) veneer wall. 
B) curtain wall. 
C) infill wall. 
D) all of the above. 
A) veneer wall. 
B) curtain wall. 
C) infill wall. 
D) all of the above.

Question 2

The coping on a roof parapet is generally

Accepted Answer

A) sloped toward the interior (roof). 
B) sloped on both sides. 
C) sloped toward the outside. 
D) A, B, or C. 
E) dead flat. 
A) sloped toward the interior (roof). 
B) sloped on both sides. 
C) sloped toward the outside. 
D) A, B, or C. 
E) dead flat.

Question 3

Because air pressure on the outside and inside faces of the exterior cladding in an ideal rain- screen wall are equal, does it mean that there is no water penetration through exterior cladding in such a wall?

Accepted Answer

Because the pressures are equal, there i

Question 4

Metal anchors are needed to transfer lateral loads to the backup wall in

Accepted Answer

A) all veneer walls. 
B) some veneer walls. 
A) all veneer walls. 
B) some veneer walls.

Question 5

Give a few examples of face- sealed exterior walls.

Accepted Answer

Glass- and- metal curtain walls are the

Question 6

What is capillary break?

Accepted Answer

Water can be sucked into tiny pores of a

Question 7

The most important feature of an (exterior)drainage wall is

Accepted Answer

A) exterior cladding. 
B) weep holes. 
C) flashing. 
D) waterproofing of the backup wall. 
E) all of the above. 
A) exterior cladding. 
B) weep holes. 
C) flashing. 
D) waterproofing of the backup wall. 
E) all of the above.

Question 8

A capillary break is a

Accepted Answer

A) vertical barrier between two abutting surfaces of different materials. 
B) narrow space in an otherwise wide joint. 
C) wider space in an otherwise narrow joint. 
D) horizontal barrier between two abutting surfaces of different materials. 
E) none of the above. 
A) vertical barrier between two abutting surfaces of different materials. 
B) narrow space in an otherwise wide joint. 
C) wider space in an otherwise narrow joint. 
D) horizontal barrier between two abutting surfaces of different materials. 
E) none of the above.

Question 9

A rain- screen wall consists of all the essential elements of a drainage wall, which are: (i)exterior cladding, (ii)air space, (iii)water- resistant backup wall, (iv)flashing, and (v)weep holes. What is the most important additional element in a rain- screen wall that distinguishes it from a drainage wall?

Accepted Answer

While the exterior cladding in a drainag

Question 10

A curtain wall is separated from the structural frame of the building by a minimum of

Accepted Answer

A) 1 in. 
B) 2 in. 
C) 3 in. 
D) 4 in. 
E) none of the above. 
A) 1 in. 
B) 2 in. 
C) 3 in. 
D) 4 in. 
E) none of the above.

Question 11

Explain the differences between a barrier wall and a drainage wall.

Accepted Answer

A barrier wall is designed to provide pr

Question 12

Provide one example of each of the two types of veneer walls-the anchored veneer wall and the adhered veneer wall.

Accepted Answer

Example of an anchored veneer

Question 13

Explain why the air space in a pressure- equalized drainage wall must be compartmentalized.

Accepted Answer

The air space in a pressure-equalized dr

Question 14

In which of the two types of exterior walls-barrier wall or drainage wall-is flashing required?

Accepted Answer

The answer of In which of the two types of...

Question 15

Z- flashing is effective in

Accepted Answer

A) a horizontal lapped joint in cladding. 
B) a horizontal butt joint in cladding. 
C) a vertical lapped joint in cladding. 
D) a vertical butt joint in cladding. 
E) all of the above. 
A) a horizontal lapped joint in cladding. 
B) a horizontal butt joint in cladding. 
C) a vertical lapped joint in cladding. 
D) a vertical butt joint in cladding. 
E) all of the above.

Question 16

What is the other commonly used term for the rain- screen wall?

Accepted Answer

Pressure-

Question 17

A drip mechanism at the underside of a projecting horizontal surface counters the effect of

Accepted Answer

A) cohesive forces between water molecules. 
B) adhesive forces between water molecules and the building surface. 
C) gravity. 
D) cohesive forces between water molecules and the building surface. 
E) kinetic energy. 
A) cohesive forces between water molecules. 
B) adhesive forces between water molecules and the building surface. 
C) gravity. 
D) cohesive forces between water molecules and the building surface. 
E) kinetic energy.

Question 18

In terms of their ability to resist water penetration, did the thick exterior masonry walls used in historic buildings behave as reservoir walls or face- sealed walls? Explain.

Accepted Answer

They were not face- sealed walls because

Question 19

What does the air pressure equalization on the outside and inside faces of the exterior cladding in an ideal rain- screen wall mean in terms of water penetration through the wall?

Accepted Answer

Because the pressure

Question 20

Curtain walls can either be: (i)transparent, glass curtain walls or (ii)opaque curtain walls. What are the glass curtain walls generally constructed of?

Accepted Answer

Generally, the glass curtain w

Exam 27: Exterior Wall Cladding-I Principles of Rainwater Infiltration Control

A backup wall is required in a(n)

The coping on a roof parapet is generally

Because air pressure on the outside and inside faces of the exterior cladding in an ideal rain- screen wall are equal, does it mean that there is no water penetration through exterior cladding in such a wall?

Metal anchors are needed to transfer lateral loads to the backup wall in

Give a few examples of face- sealed exterior walls.

What is capillary break?

The most important feature of an (exterior)drainage wall is

A capillary break is a

A curtain wall is separated from the structural frame of the building by a minimum of

Explain the differences between a barrier wall and a drainage wall.

Provide one example of each of the two types of veneer walls-the anchored veneer wall and the adhered veneer wall.

Explain why the air space in a pressure- equalized drainage wall must be compartmentalized.

In which of the two types of exterior walls-barrier wall or drainage wall-is flashing required?

Z- flashing is effective in

What is the other commonly used term for the rain- screen wall?

A drip mechanism at the underside of a projecting horizontal surface counters the effect of

In terms of their ability to resist water penetration, did the thick exterior masonry walls used in historic buildings behave as reservoir walls or face- sealed walls? Explain.

What does the air pressure equalization on the outside and inside faces of the exterior cladding in an ideal rain- screen wall mean in terms of water penetration through the wall?

Curtain walls can either be: (i)transparent, glass curtain walls or (ii)opaque curtain walls. What are the glass curtain walls generally constructed of?

An Overview of the Building Delivery Process How Buildings Come Into Being

Design and Constructions Regulations

Loads on Buildings

Load Resistance the Structural Properties of Materials

Properties of the Envelope-I Thermal Properties

Properties of the Envelope-II Air and Water Vapor Control

Fire and Smoke-Related Properties

Acoustical Properties of Materials

Principles of Joints and Sealants Expansion and Contraction Control

Principles of Sustainable Construction

Soils and Excavations

Below-Grade Construction Foundation Systems and Basements

Materials for Wood Construction-I Lumber

Materials for Wood Construction-Ii Engineered Wood Products, Fasteners, and Connectors

Wood Light-Frame Construction-I

Wood Light-Frame Construction-II

Structural Insulated Panel Construction

Material Steel and Steel Components

Structural Steel Construction

Cold-Formed Steel Construction

Lime, Portland Cement, and Concrete

Concrete Construction-I Formwork, Reinforcement, and Slabs-On-Ground

Concrete Construction-II Site-Cast and Precast Concrete Framing Systems

Masonry Materials-I Mortar and Brick

Masonry Materials-II Concrete Masonry Units, Natural Stone, and Glass Masonry Units

Masonry and Concrete Bearing Wall Construction

Exterior Wall Cladding-II Masonry, Precast Concrete, and Gfrc

Exterior Wall Cladding-III Stucco, Adhered Veneer, Eifs, Natural Stone, and Insulated Metal Panels

Glass, Glazing, and Light-Transmitting Plastics

Windows and Doors

Exterior Wall Cladding-Iv Wall System in Glass

Roofing-I Low-Slope Roofs

Roofing-I Steep Roofs

Stairs

Floor Coverings

Ceilings

Filters