Cork fact sheet
Key Facts A1-3 expanded cork
CO₂- Capturing: 180 kg/m³
Specific weight: 160 kg/m³
Fire protection class: B1 according to EN 13501-1; DIN 4102
Thermal conductivity: 0.039 - 0.045 W/m.ºK
Key Facts A1-3 Cork panels
CO₂- Capturing: 716 kg/m³
Specific weight: 450 kg/m³
Fire protection class: B1 according to EN 13501-1; DIN 4102
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Replaces building materials with negative ecological impacts - Life cycle assessment improvement
Stores biogenic carbon
100% made from renewable natural cork
Technical drying is carried out using
thermal energy with own waste from the shredding process - CO₂-neutralantiallergic
Breathable - regulates room climate and room temperature - contributes to healthy living
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#biogen:
The cork oak, Quercus suber L., is native to semi-arid regions of southern Europe and is the habitat of 140 plant and 55 animal species. Cork is the organ tissue parenchyma that covers the trunk and branches
Stomata on the surface of the leaves absorb CO₂ and cork oaks use it to build up sugar, i.e. carbon.
These carbohydrates serve both as a source of energy and as a building material from which cork oaks, for example, produce beef. -> 6 H₂O + 6 CO₂ = 6 O₂ + C₆H₁₂O₆ (glucose)
Cork oaks that are regularly peeled produce 250% to 400% more cork than without peeling
The use of cork products, which requires extraction, leads to the formation of more cork on the tree, which corresponds to a larger amount of bound CO₂.
If cork is used, the absorbed CO₂ is stored for long periods of time.
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Cork oaks are only "peeled" every 9 years and only to the extent that does not damage the tree!
Cork is treated with steam heated by steam generators and expands to the specific weight required for the area of application.
Agglomeration is based on the cork's own resins
Cork also has considerable chemical and biological stability and is highly fire-resistant
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Cork is already the product - 100% natural and ecological, an advantage that is unparalleled in other competing materials!
Cork grows without additional energy and without producing pollutants.
Durability - Many houses built in Lisbon in the 1940s and 1950s still have their original cork flooring and wall coverings.
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Insulation - as thermal, sound and vibration insulation material
Filler - granules for filling cavities and for
mortar mixturesJoints - insulation, expansion or compression joints
Coverings - intermediate floors, floors, ceilings, skirting boards, linoleum
Industrial - as a vibration damper for industrial appliances and
insulating material for cooling technology
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45% suberin - responsible for compressibility/elasticity
27% lignin- structural sugar for cell wall structure
12% polysaccharides - linked to the cork structure
6% wax-containing substances - water-repellent and important
for impermeability - phenolic compounds provide protection against attacks by biological organisms6% tannins - color and material protection/preservation
4% ash - polymeric-complex structural components
and non-structural components
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CO₂ calculation according to ÖKOBAUDAT current version 2021-II from 25.06.2021 according to EN15804+A2
APCOR - Portuguese Cork Association
Gil (2012) 'Cork as a building material - technical guide'.