Materials & Methods Chapter 29
The thickness of granite used in wall cladding is generally
1 1/4 in.
In a stone-honeycomb wall cladding panel, the thickness of the stone is approximately
1/4 in.
The thickness of the lamina in PB EIFS is approximately
1/8 in.
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
7/8 in.
When control joints are provided in a stucco-clad wall, expansion joints are unnecessary.
False
When vertical support channels are used in stone cladding, dead-load supports and tiebacks are not required for stone slabs.
False
EIFS is classified into two categories: polymer-based (PB) EIFS and polymer-modified (PM) EIFS. Which of these two is more commonly used?
PB EIFS
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
Expansion joints are required in an EIFS-clad wall.
True
The weight of insulated metal panels and stone-honeycomb panels is approximately the same.
True
In an insulated wall metal panel, the insulation is sandwiched between
a metal sheet on both sides.
The term "kerf" in stone cladding industry refers to
a slot in a stone slab.
A combined dead-load and lateral-load support anchor for stone cladding consists of
a stainless steel L-shaped bent plate welded to a stainless steel flat plate.
Masonry units in an adhered masonry veneer on a stud wall are applied directly on
a stucco scratch coat over metal furring lath.
In the prefabricated, panelized stone cladding system, stone slabs are backed by
a truss consisting of structural steel members.
In a stone-honeycomb wall cladding panel, the honeycomb is generally made of
aluminum.
Control joints on a stucco surface are formed by using accessories, which consists of
any one of the above.
In PB EIFS, the EIFS lamina consists of
base coat, mesh, and finish coat.
Metal lath, when used in stucco, is installed on the wall
before the application of the first stucco coat.
Control joints on a stucco surface are provided primarily to
control drying shrinkage of stucco.
A bayonet clip in the stone cladding industry refers to
dead-load support.
In PB EIFS, the insulation commonly used is
expanded polystyrene.
The term EIFS is an acronym for
exterior insulation and finish system.
The required color of a stucco surface is
integral to the mix of the finish coat.
In an adhered masonry veneer, the most commonly used masonry unit is
manufactured stone.
In an adhered masonry veneer, masonry units are adhered to the backup surface using
masonry mortar.
The requirements for control joints in an EIFS wall are
none; control joints are not required in an EIFS-clad wall.
In addition to water, a stucco base coat mix consists of
portland cement, lime, and sand.
Masonry units in an adhered masonry veneer
require pointing of joints after adhering the units.
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
scratch coat, brown coat, and finish coat.
The total thickness of stucco on a concrete or concrete masonry wall is generally
smaller than that on a stud-backed wall.
Metal lath is required when stucco is applied on
stud-wall assemblies.
Impact-resistant EIFS generally has
two base coats and one finish coat.
A stone-honeycomb panel is anchored to the backup wall using
two interlocking metal channels.
The dead-load supports for each stone slab (in a stone-clad wall) are generally
two, placed at the same level at quarter points.
Backwrapping in an EIFS-clad wall refers to
wrapping the terminal edges of EIFS insulation with EIFS mesh.
