| The
term Building Stone says a lot. The practice of building
houses and buildings with stone goes back a long way, but it goes
forward as well, not because of history, but because of values that
transcend it. It would be fair to say that we all go a good many
years at a time, without reminding ourselves of the three little
pigs story, but are there any of us that don’t know the story,
or any of us that don’t understand its meaning? It would be
very few indeed.
Through the beginning
of the last century, houses and buildings routinely were built on
foundations of stone, from whatever quarry was closest to the construction
site, or of brick, if there was no quarry nearby. People of means
often built the outer walls with the same stone, rather than wood
frame and siding, because it was known that as long as a roof was
kept over it, it would never decay, rot, fall apart, or be eaten
by termites. Brick was seen and used the same way. This was the
era before termite insurance. A house or building, made of stone,
would obviously long outlive its builder, and his grandchildren.
With
the development and widespread use of the C.M.U. (Concrete Masonry
Unit, a.k.a. concrete block or cinder block) in the mid twentieth
century, the use of Building Stone (and brick) changed. It was now,
usually, the covering or shell around a wood frame structure, that
was built on top of a concrete block foundation. The meaning of
the look of a stone house or building, however, did not change.
If you had the resources to build it with stone (as with brick),
it was not going to blow away. You, also, were not just passing
through.
Building stone was now,
what we refer to as a veneer, usually 4-6 or 6-8 inches thick. It
is this look that we associate with the traditional appearance of
a stone house or building, and its mass and permanence are evident
around windows and outer corners where the thickness of the veneer
(again, whether stone or brick) would be visible. On an outside
corner the mason would weave the pieces for strength, and this process
would reveal that the thickness or the material was typically 4”
-6” thick. Similar to the thickness of brick, and used the
same way, stone was stacked with mortar joints, upward from a foundation
or ledge, which provided the necessary structural support to carry
the weight of the
material. It took time and, as always, cost more money, to build
in this way. The benefits were real, but not everyone could afford
them.
Throughout the United
States, in the 1950’s and 1960’s masonry supply yards
(the manufacturers of the concrete blocks now used to build foundations,
as well as suppliers of Redi-Mix concrete) began experimenting with
concrete formed into artificial stone and artificial brick, to provide
a semblance of this look, at a fraction of it’s cost. It would
be a fraction, since they were thin, therefore lightweight, and
could be literally stuck onto the frame wall, rather that needing
to be stacked up, bearing down on the foundation. This meant that
these materials could be put up rapidly and cheaply. Unfortunately,
they looked awful.
In 1962, Garrett and
Floyd Brown, professional plasterers from California, developed
a process of producing manufactured stone veneer. They were cast
of concrete with lightweight aggregates, in flexible moulds, and
hand colored with Iron Oxide Pigments. For the first time, realistic
looking manufactured stone was available to be distributed on a
large scale, ultimately, under the brand name Cultured
Stone. While other brands also shared this trend, Cultured
Stone became and remains the Pre-eminent name in manufactured stone.
This product, soon available
nationally, with L-shaped corners that would simulate a 4”-6”
veneer stone, caught on like wild fire. It could be applied to virtually
any wall surface, and with the speed of application, could be used
at a fraction of the cost of full thickness stone or brick.
The stone industry lagged,
and began to be displaced by the manufactured stone industry. The
simulated look of stone was mass produced with manufactured stone,
and began to find its way into housing developments and onto the
facades of chain stores and franchised restaurants which would,
previously, have never had a stone appearance, due to its prohibitive
cost (the cost of material and labor).
Thin veneers (natural
stone that was about 1 ½” thick) had always been available,
and gained in popularity during this period, since they were, by
virtue of their thickness, also lightweight and able to be used
without foundation support. Unfortunately, the absence of the L-shaped
corner, to simulate full thickness stone, left the producers of
thin veneer at a substantial disadvantage in the marketplace.
Excellent promotional
practices (brochures, sales leads and distribution of product in
modular boxes) as well as the L-shaped corners they produced, left
the manufactured stone industry in the drivers seat, and it gained
market share year after year through the seventies, eighties and
into the ninetees.
The lag in the Natural
Stone Industry filling the demand for lightweight thin veneer with
L-shaped corners ended in 2004, with the introduction of mass produced
Architectural Stone Fabrication Machinery from Park
Industries, of St. Cloud Minnesota. This equipment,
which could cut L-shaped corners, as well as thin flat material
at a highly efficient, and therefore low production cost, became
available to the Natural Stone Industry.
Quarriers across the
United States were now able to put these new saws to use at their
facilities, providing an amazingly broad pallet of color and texture
for Architects to work with, which of course had the unique and
broad based variety of appearance that the Manufactured Stone industry
had done a respectable job of duplicating, throughout the leadup
to this period. Their products are available at a square foot weight
rating of under 15 lbs per sq ft, and they are therefore usable,
like manufactured stone, without foundation support.
Like the block manufacturers
of the 1950’s and 60’s who, throughout the country had
created a sort of grass roots revolution to replace real stone with
a less expensive alternative, these producers of current thin veneer
products are everywhere across the country. Unlike these early producers
of manufactured stone, (who are gone now, having been replaced by
the large scale production and distribution of high quality manufactured
stone) producers of natural stone thin veneers have a finished product
that is magnificent in appearance, and impervious to the elements.
The fact that it happens to be radically less expensive to use than
traditional full thickness stone, doesn’t hurt either.
Since the L-shaped corners
provide the appearance of a full thickness stone, in effect, no
one can tell that it isn’t 4”-6” thick. In other
words, in effect, no one can tell that it isn’t the original
full thickness stone, as one would have used in the days before
manufactured stone. This is a debt it owes to manufactured stone,
through the introduction of the L-shaped corner.
The manufactured stone
installers were now, already out there. With virtually the same
installation technique, L-shaped corners that would simulate 4”-6”
veneer stone, and shipped in modular boxes, the duplicated had copied
the duplicator, and the superb appearance of Natural Stone brought
itself back into the marketplace in a very big way.
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