Question 1

Metal lath is required when stucco is applied on

Accepted Answer

A) concrete walls. 
B) masonry walls. 
C) stud- wall assemblies. 
D) all of the above. 
E) none of the above.

Question 2

Discuss the difference between control joints and expansion joints in a stucco- clad wall.

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Question 3

Stucco applied on a stud wall consists of three coats. What is the thickness of each coat and the total thickness of stucco?

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Question 4

Sketch a combined dead- load support and tieback anchor used in a stone- clad wall.

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Question 5

The term EIFS is an acronym for

Accepted Answer

A) exterior insulation and finish system. 
B) envelope insulation with finished stucco. 
C) exterior insulation and finished stucco. 
D) externally insulated finish system.

Question 6

Using a sketch, explain the anatomy of stucco applied over a metal- stud wall assembly, showing all components.

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Question 7

Discuss the pros and cons of EIFS cladding compared with stucco cladding.

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Question 8

What are the limitations of stucco cladding?

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Question 9

A stucco surface, made of Portland cement and sand mix, shrinks on gaining strength, introducing tensile stress in it. Therefore, when stucco is applied on a (wood or steel)stud wall, it is reinforced with metal lath. Despite the lath reinforcement, a stucco wall requires control (shrinkage)joints. Why?

Accepted Answer

The answer of A stucco surface, made of Portland cement...

Question 10

What is dimension stone?

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Question 11

How is a base coat stucco mix typically applied on a wall-by spraying it on or troweling it?

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Question 12

Control joints are required to be more closely spaced on a stucco surface backed by a stud wall than on a stucco surface backed by a masonry wall.

Accepted Answer

A) True 
 B)False

Question 13

In which cladding system is it easy to provide surface ornamentation, such as carved window sills, ornamental roof cornices and parapets, corner quoins, etc.?

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Question 14

Lightweight masonry veneer units can be adhered to the backup wall, giving an adhered masonry veneer. Briefly explain this cladding system.

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Question 15

On wood- stud and cold- formed steel- stud- wall assemblies, stucco is typically applied in three coats. The total typical thickness of the three coats is

Accepted Answer

A) 7/8 in. 
B) 1 in. 
C) 1- 1/2 in. 
D) 1- 1/8 in. 
E) 1- 1/4 in.

Question 16

The term kerf in stone cladding industry refers to

Accepted Answer

A) dead- load support for a stone slab. 
B) a slot in a stone slab. 
C) a tieback anchor for a stone slab. 
D) none of the above.

Question 17

The total thickness of stucco on a concrete or concrete masonry wall is generally

Accepted Answer

A) greater than that on a stud- backed wall. 
B) the same as that on a stud- backed wall. 
C) smaller than that on a stud- backed wall.

Question 18

What does an EIFS lamina consist of and what is its thickness?

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Question 19

The base coat mix and finish coat mix for stucco are available in bags. In preparing a mix for application on a wall, which other materials are added to bagged mix for: (i)base coat and (ii)finish coat?

Accepted Answer

The answer of The base coat mix and finish coat...

Question 20

Masonry units in an adhered masonry veneer on a stud wall are applied directly on

Accepted Answer

A) gypsum sheathing. 
B) a stucco scratch coat over metal furring lath. 
C) gypsum sheathing treated with a liquid- applied air- weather retarder. 
D) a stucco brown coat. 
E) any one of the above.

Exam 29: Exterior Wall Cladding-III Stucco, Adhered Veneer, Eifs, Natural Stone, and Insulated Metal Panels