Chapter 29 Flashcards
In addition to water, a stucco base coat mix consists of?
Portland cement, lime and sand
On wood-stud and cold-formed steel-stud-wall assemblies, stucco is typically applied in three coats. Beginning from the first to the last, the coats are generally called:
a. brown coat, scratch coat, finish coat
b. scratch coat, brown coat, and finish coat
c. prime coat, scratch coat, and finish coat
b. scratch coat, brown coat, and finish coat
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 how many inches?
7/8 inches
The required color of stucco surface is:
a. integral to the mix of all coats used in stucco
b. integral to the mix of the finish coat
b. integral to the mix of the finish coat
Metal lath is required when stucco is applied on ?
Stud wall assemblies
Metal lath, when used in stucco, is installed on the wall:
a. before the application of the first stucco coat
b. directly under the finished coat
a. before the application of the first stucco coat
Control joints on a stucco surface are provided primarily to?
control drying shrinkage of stucco
Control joints on a stucco surface are formed by using accessories, which consist of:
a. galvanized steel
b. Zinc
c. PVC
d. any of the above
e. none of the above
d. any of the above
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. True or false?neer, the most commonly used masonry unit is?
True
The total thickness of stucco on a concrete or concrete masonry wall is generally:
a. the same as that on a stud-backed wall
b. greater than that on a stud-backed wall
c. smaller than that on a stud backed wall
c. smaller than that on a stud backed wall
When control joints are provided in a stucco-clad wall, expansion joints are unnecessary. True or false?
False
In an adhered masonry veneer the most commonly used masonry unit is?
Lightweight manufactured stone
In an adhered masonry veneer, masonry units are adhered to the backup surface using?
Polymer-modified masonry mortar
Masonry units in an adhered masonry veneer on a stud wall are applied directly on?
A stucco scratch coat over metal furring lath
Masonry units in an adhered masonry veneer:
a. require pointing of joints before adhering the units
b. require grouting of joints after adhering the units
c. require grouting of joints while the units are being adhered
b. require grouting of joints after adhering the units
The term EIFS is an acronym for?
Exterior insulation and finish system
EIFS is classified into two categories: polymer-based (PB) EIFS and polymer-modified (PM) EIFS. Which of these two is more commonly used?
a. PB EIFS
b. PM EIFS
a. PB EIFS
In PB EIFS, the insulation commonly used is?
expanded polystrene
In PB EIFS, the EIFS lamina consists of:
a. base coat, insulation, and finish coat
b. base coat, mesh, and finish coat
c. insulation, mesh, and finish coat
b. base coat, mesh, and finish coat
The thickness of the lamina in PB EIFS is approximately?
1/8 inch
Backwrapping in an EIFS-clad wall refers to?
Wrapping the terminal edges of EIFS insulation with EIFS mesh.
The requirements for control joints in an EIFS wall are:
a. generally the same as those in stucco-clad wall
b. more stringent than those in a stucco-clad wall
c. less stringent than those in a stucco-clad wall
d. none; control joints are not required in an EIFS-clad wall.
d. none; control joints are not required in an EIFS-clad wall
Impact-resistant EIFS generally has how many base coats and how many finish coats?
two base coats and one finish coat
Expansion joints are required in an EIFS-clad wall. True or false?
True
