Deck 23: Cavity and Reinforced Masonry Walls

Question 1

_____ is not recommended anymore for flashing in cavity masonry walls.

A) Copper
B) Stainless steel
C) Plastic
D) Aluminum

Answer 1

D

Question 2

_____ is an inert, lightweight, granular insulating material manufactured by expanding an aluminum magnesium silicate mineral, which is a form of mica.

A) Perlite
B) Vermiculite
C) Polystyrene
D) Expanded polyurethane

Answer 2

B

Question 3

Tests by the BIA indicate that _____ portland cement-lime mortars, under ASTM C270 or BIA Designation M1-72, provide maximum bond between masonry Chapters and mortar.

A) Type N or Type O
B) Type S and Type N
C) Type M or Type S
D) Type O and Type S

Answer 3

C

Question 4

Cavity wall insulation must support its own weight without settling.

Question 5

The purpose of _____ is to channel moisture that collects on the flashing to the exterior face of the wall and act as a drain for the wall to remove moisture.

A) weep holes
B) dip strips
C) bridges
D) polyethylene sheeting

Question 6

A reinforced masonry wall is built like a cavity wall with an air space between the wythes.

Question 7

Flashing is not a necessity when building cavity walls.

Question 8

The BIA (Brick Industry Association) recommends the construction of cavity walls where there is severe weather exposure, or where a maximum resistance to rain penetration is desired.

Question 9

In a properly constructed cavity wall, both wythes of materials must be adequately and properly tied together.

Question 10

Weep ropes should be pulled out of the wall after the wall is completed.

Question 11

Sheet metal flashing is bent and formed on the job site.

Question 12

Aluminum is recommended for use as flashing in cavity masonry walls.

Question 13

The cavity wall consists of two tiers or wythes of masonry separated by a continous air space _____ wide.

A) at least 3" wide
B) not less than 3" wide
C) no more than 2"
D) not less than 2"

Question 14

Rods used in reinforced concrete are very different than the steel rods used in reinforced masonry.

Question 15

Grout used in reinforced masonry must be coarse.