Cork is the name given to the bark of the cork oak, a tree from the beech
family, characteristic of western Mediterranean countries.The bark acts as a
protective shell to the harsh climate changes and numerous fires affecting the
region. Cork trees are stripped of their bark every nine to fourteen years, the
tree is never cut and the habitat remains undisturbed.The properties of cork are
derived naturally from the structure and chemical composition of the inner
cells. Each cubic centimeter of cork’s honeycomb structure contains between 30
and 40 million air cells. Hence cork provides:
INSULATION
Because 90% of the tissue consists of gaseous matter the density of cork is
extremely low giving the materials wonderful insulating properties, thermal as
well as acoustical.
RESILENCY
When cork is subjected to pressure, the gas in the cells is compressed and
volume reduces considerably. When released from pressure, cork recovers very
rapidly to its original shape.
IMPERMEABILITY
The presence of suberin, an inherent waxy substance, renders cork impervious to
both liquid and gases. As a result, it does not and may therefore be considered
the best seal available.
HYPOALLERGENIC
Cork does not absorb dust and consequently does not cause allergies.
DURABILITY
Cork is remarkably resistant to wear, as it is less affected by the impact and
friction than other hard surfaces because of the cellular composition.
FIRE RETARDANT
A natural fire retardant, cork does spread flames and does not release toxic
gases during combustion.
Cork waste from the stopper industry (wine corks) and low quality bark are used
to produce cork granules. These are classified according to density and grain
sizes.
Flooring tiles are produced from cork granules bound with resins and molded to
obtain the desired density under pressure and heat.
Cork wear layers can be waxed, varnished, urethane or acrylic coated.
This past decade the floating floor technology has been successfully adapted to
cork flooring to produce one of the highest quality floor covering.
Cork flooring parquets and floating floors are quiet, warm, comfortable and easy
to maintain, still remaining reasonably priced.
Cork flooring has been used around the world and in this country for over a
century.
Yesterday’s prestigious applications include:
The First Congregational Church in Chicago, Illinois - Installed in 1890
The Mayo Clinic & Plummer Building – Installed in original building in 1912
adding some additional cork flooring in 1940 for a total of 300,000 sq. ft.
Falling Water, Western PA, residence designed with cork floors by architect
Frank Lloyd Wright in 1937 …..just to name a few
Cork flooring is coming back strongly as architect and designers are very
enthusiastic about the distinctive look of the material, the need for better
indoor air quality and overall comfort as well as related environmental issues.
Cork underlayment, a lower density material is becoming more and more accepted
as an economical and well performing alternative for sound insulation in
building construction.
Cork composition material in rolls or sheets is also the ideal underlayment for
laminate flooring as it absorbs sound and provides resiliency.
Cork, a unique material, combines more benefits than any other floor covering.
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