>> [MUSIC] This is marble, Georgia marble.
The Georgia marble company,
supplying a complete one source service
in more than 30 varieties of
domestic marble quarries from
the world's richest and most extensive deposits.
The classic beauty and
extraordinary durability of marble,
the first material of architectural and monumental art,
is being used more today than ever before.
Its remarkable properties,
formed by nature millions of years ago,
are still unsurpassed by manmade materials.
Here in one of Georgia marble's 28 quarries, marble,
which excels in consistency of quality and
enduring white beauty has
been produced for over 80 years.
The very pattern of the quarry walls suggests
the gleaming ordered stories of
marble skyscrapers mounting tier after tier.
Trends today are to multi
story buildings using light weight,
weather tight skin walls.
To meet this trend, improved methods for
utilizing stone on buildings
of this type have been developed.
The Georgia marble company
presents the Zibell anchoring system,
a new concept in thin exterior veneers.
Now, marble is available
at moderate cost in a lighter weight,
weather tight veneer system,
featuring positive anchorage
and simple rapid installation.
The Zibell anchoring system
comprises a versatile metal grid assembly,
securing thin exterior veneer panels
of marble to a building structure.
This blend of metal and marble is simplicity personified.
Only a few basic parts are needed
to mechanically anchor marble veneer to
a new construction or to adapt
it to the remodeling of existing buildings.
Zibell components consist of
light weight parts that complement
the thin marble veneer.
Galvanized steel grid struts are
one component of the Zibell supporting system.
A series of these vertical struts is
attached to the building at predetermined locations.
Grid struts are made in a variety of
sizes and are shaped with two interned edges.
The steel edges of the clamping ridges are half of
the key to the vertical low
supporting ability of the system.
The other half is the serrated grooves
in the spring held nut,
which produces a vis like grip between channel and nut.
Rounded edges permit the nut to
be slipped into the strut from the front,
and a spring on the back holds it in place,
making one hand work on a scaffold, a simple matter.
Tapered socket head bolts are
used extensively for an installation.
With this system, marble veneer
is anchored securely to the structure,
and each piece of veneer is supported independently.
The Zibell system uses
positive methods of attachment throughout.
All attachments are bolted to the grid struts and support
shear loads through action of the
serrated nuts biting into the struts.
The real heart of the Zibell system is
Georgia marble's detaching clip and
the aluminum members which
together secure the marble to the structure.
Each wedge shaped clip has
a series of locking grooves along one edge.
This tapered side acts as
a locking cam with vis action to
clamp the attaching members against
the seal struts in a positive manner.
Locking grooves and the clip fit into
mating grooves in three different
horizontal supporting members.
H members are used between
courses of marble to secure the top of
the lower panel and also to anchor and
support the weight of the marble immediately above it.
The same attaching clip holds another unit,
the bed channel, designed to align and
support the bottom course of marble veneer.
A cap member secures the top course of marble.
These four simple items,
the cap member, the H member, the bed member,
and the attaching clip
are the basic parts required to apply
a marble veneer to any building
with the Zibell anchoring system.
At interior corners and returns,
horizontal members are clamped together
with corner brackets to ensure rigidity.
Attaching the vertical struts
to the building is a simple matter,
using one of two methods.
Struts can be bolted directly to
expansion anchors located in concrete or masonry walls,
an ideal feature for remodeling.
However, in most applications,
use straps are used to secure the grid struts.
A socket head bolt and
spring nut connect the strap with the strut.
The straps can be bolted to
existing walls for remodeling applications.
In new construction, the straps can be bolted directly to
steel framework or to insert
anchors previously cast into concrete.
Tests have proven that both methods
more than meet sheer stress and wind loads.
Chains of progressive thicknesses are slipped over
the bolts to plum the grid struts in a true flat plane.
All the components with their tolerances
are designed for just one purpose,
to apply thin marble veneer quickly and at low cost.
Fabrication of the marble,
with its grooved edges,
is the work of many men and
machines at the Georgia marble plants.
Great gang saws with parallel diamond tipped blades slice
a massive 20 ton block of marble into many thin slabs.
Under the bite of the gang saws,
the mass of stone becomes a thin veneer.
One side of the slab is given a final finish,
which brings out the sparkling beauty of the marble.
Slabs are now ready for selection to match
the color and veining of approved samples.
Individual panels are diamond sawed to size,
each panel square and to precise dimensions.
Here a special diamond saw
blade is positioned for the next step.
Precision is the key word here.
The saw blade fashions a curve
vital to the success of the Zibell system,
for it determines the alignment of
the panels on the completed wall.
In this curve, the aluminum support members
hold the marble panels in a true plane,
providing support and positive anchorage
the full width of the slab.
Precision in marble fabrication
ensures ease and exactness during installation.
To complete the enclosure of a building,
a resilient adhesive ceiling tape
is placed between every marble to metal
and every marble to marble joint
to provide for expansion or contraction.
A rubber base mastic sealant is
applied in certain phases of assembly.
These are the components making up the Zibell system.
Components are easily assembled either
on the job or as in this case,
in a mockup to demonstrate how it is done.
The first of the extrusions, the bed channel,
is set, aligned, and
leveled at a predetermined elevation.
The bed channel serves as
an independent relieving angle to support
the first course of marble and
establish horizontal alignment of the courses above.
It may be set above the base course as it is here,
or it can be located at other elevations.
The combination of the mating attaching clips
and horizontal members,
plus the serrated spring nuts,
give each course of marble independent support.
This support capability is one of
the basic design features of the Zibell system.
Before the marble is set,
a 16 inch thick resilient tape
is placed inside the bed channel.
This resilient weather seal prevents metal to
marble contact and is also an expansion joint filler.
Even though the sealants make
the wall relatively water tight,
should condensation occur on the back of the marble,
weep holes are provided in
the horizontal members to
prevent accumulation of moisture.
The first panel of veneer is placed on
the bed channel and anchored temporarily at the top.
The bottom is automatically aligned and locked in plane,
as the lifts of all horizontal aluminum members engage
the curf in the bottom of each course of marble to align,
support, and anchor the veneer.
Only a few conventional tools
are required to lock the grid system.
The simplicity of the Zibell system permits
rapid installation by small crews
without need for complicated equipment.
A quarter inch resilient tape acts as a spacer in
vertical joints and also
provides for horizontal expansion.
It is placed back from the face of the marble to serve
as a stop for the final caulking to be applied later.
In the horizontal joints,
water tight integrity is
maintained by a three-way barrier.
The final caulking is the first line
of defense, keeping moisture out.
A sealant is also
applied to the curf in the top of each panel.
The H member's lower lip is seated in this soft mastic,
further proof against invading water.
Both the top and the bottom of
the H member is weather stripped with resilient tape.
Zibell marble walls are almost as
impervious to moisture as is the marble itself.
An H member is lowered into the top curf of
the marble and locked into place with the clips and nuts.
It now aligns the tops of the panels and is
ready to support the weight of the next course of stone.
Relation of marble slab heights to
the size and spacing of the load bearing
vertical grid struts is
easily determined by design criteria.
A Zibell installation can be
designed with grid struts supported at
each floor level or at
intermediate points on the backup wall as required.
Corner joints, both inside and outside,
are sealed and caulked,
just as any other joint.
All corners are reinforced by
brackets which ensure rigidity and alignment.
At every point in the system,
the attachment between elements,
marble, horizontal members, struts,
and structure, is a positive mechanical lock,
making the Zibell application
a complete unit attached securely to the building.
The tough, durable marble phase
is now a true surfaced marble wall,
installed quickly and economically on the building.
A CAP member completes the assembly
securing the top panel to the struts.
Design capabilities and flexibility of
the system are not limited to flat wall surfaces.
Combinations of Zibell parts and marble veneer can easily
be assembled to form interesting effects of offsets,
splays, and other deviations
from horizontal and vertical planes.
A final caulking at every joint with
an approved polysulfide or
equal material ensures complete weatherproofing.
As many as three seals protect the joints
with a minimum of two water barriers at every joint,
the resilient tape, and the flexible caulking compound.
This new system of applying marble to
building exteriors is being used every day,
as on these shear walls in
column facings adorning the front
of this 22 story building.
Simple, standardized fasteners facilitate installation,
and labor costs are reduced.
Spring nuts give the workmen an extra hand.
Simple hand tools are all
that are required for installation,
and yet despite their simplicity,
the anchoring devices are absolutely
positive when it comes to attaching the veneer.
The alignment of the veneer face is automatic.
Once the struts are shimmed
and tightened in a true plane,
the anchoring system and marble are also fixed in plane.
Expansion joints in each direction
are assured and the wall is weatherproof.
Material costs are held to a minimum.
Attaching members are light and relatively few in number.
The marble veneer is utilized at a minimum thickness.
Heavy, relatively costly stone
and masonry can be replaced
with lighter marble veneer
providing many new design possibilities.
A Zibell wall can be put where it's wanted
because of its self supporting flexible features.
The ageless beauty and
durability of marble is now adapted to
the newest ideas springing from
the drawing boards of America's architects.
Many applications of
this speedy lightweight veneer system
have been completed all over the country.
From the Pacific Coast,
where it has been approved to
withstand that area's earthquakes,
to the Atlantic through extremes of
temperature and climatic conditions,
the Zibell system is converting
modern architectural ideas into reality.
Remodeling of old exteriors can go
on with business as usual inside.
New projects benefit from
the system scheduling flexibility which
permits the marble to be installed at
the most convenient period of construction.
Placement of insulation within the depth of
the grid structure can eliminate
a portion of normal backup wall depth,
providing valuable additional floor space.
By virtue of the flexibility of this system,
design variations and special effects can be achieved for
marble facades to a degree not feasible
in standard methods of support and anchoring.
Simplicity. That's the Zibell system in one word.
Wherever you want marble,
you can have it in a proven application of one of
the world's most respected and
most beautiful building materials.
Now, marble is available for any application, new or old,
to bring its prestige and
beauty within the practical reach of
every owner and architect to the Zibell anchoring system.