Lambourde insulation board

LAMBOURDÉ is a quick application system designed for low thickness insulation and building renovation. It is used for mechanical fastening to the floor or wall, providing: perfect thermal and acoustic insulation under wood or plasterboard finish. The material is 100% natural. It has unparalleled thermal and acoustic properties. The material is easy to install thanks to flush-mounted slats and provides mechanical stability.

It works in a very wide temperature range, from -180 ° C to 120 ° C. At very high temperatures, it does not emit any toxic substances such as carbon dioxide. The overall product density is approximately 110 kg / m3. The fire reaction class is marked with the letter E in the European specification. The sound absorption capacity can be as high as 59 dB when using this product. Thanks to the Portuguese solution, the strips embedded in the cork allow you to install both plasterboard and OSB boards.

After assembly, the lambourde board will be resistant to many chemicals, insects and rodents. It can be used in walls, floors and ceilings. It is also used to prevent cold from escaping from chambers where low temperature is required. Sometimes you can also find the application of vibration isolation of machines and devices. This cork is suitable for both construction from scratch as well as renovation and reconstruction.

Absorption of vibrations by cork in industry and construction

Cork has a special vibration isolating material formula that combines performance with environmental considerations. With the development of infrastructure and urbanization, the importance of a high-quality acoustic environment for human well-being increases.

People around the world are more aware of the impact acoustics have on their daily lives and expect a higher quality acoustic experience.

On the other hand, trends in the areas of sustainability, recycling and circular economy require a stronger focus on waste minimization and environmental pollution. Cork-based sound and vibration isolation solutions are advancing to meet these three pressing needs.

Although cork has a higher loss factor than rubber – which is essential for the damping function and consequently energy dissipation – anti-vibration rubbers are insulating and offer very little damping.

The combination of the two materials as a cork-rubber composite provides additional properties as a vibration isolating material. No material combines process performance and handling with such perfection and diversity, adding resistance to mechanical and thermal effects as well as chemical compatibility in products that are easy to cut and shape for final use.

The unusual properties of cork are currently being tested in high-speed trains. Special cork floors in the form of a lightweight composite structure are more and more often found in the inner floors of passenger carriages. There are aluminum alloy shells on both sides.

As with all mobility models, reducing the weight of railway wagons is crucial for energy consumption. Requirements such as the inclusion of HVAC (heating, ventilation, air conditioning) systems, noise reduction, increased thermal insulation, design versatility and safety regulations for collision structures usually have a common denominator: weight gain. Cork composites help reduce it.

Cork in modern art

In modern art, cork plays an extraordinary role more and more often. Even ordinary wine cork stoppers with the right hands can become a work of art. One of the contemporary artists who uses this ecological material is Daniel Kubini, born in Czechoslovakia in 1983. He uses wine corks to create spectacular large-format cork portraits.

In his studio on Wasserfeldstrasse he set a special example of this and his first major work: Freddy Mercury, ex-lead singer of the group “Queen”. With 330 hours of work and almost 12,000 corks, he created a large-format painting. His other work is a globe 160 cm in diameter and 2 meters high, which the artist spent 2 years creating and about 17,000 corks.

In another part of Europe lives the Albanian Saimir Strati, whose fame echoed around the world. It is listed in the Guinness Book of Records with six of its enormous mosaics. Strati applied its cork mosaic to the facade of the Sheraton Hotel in Tirana in 27 labor-intensive days: 229,764 corks, spread over an area of 91.87 square meters. It thus set a new world record for the largest cork mosaic.

Even more spectacular works are done by Alexandre Farto, also known as Vhils. His enormous works are intended as an element of the city landscape. Known for his portraits carved directly onto the walls of buildings around the world, Portuguese artist Vhils recently experimented with cork, creating a gigantic, almost frieze scene of faces, words and patterns, entitled Contraste.

Elementy dzieła różnią się głębią, co sprawia, że ​​faluje ono w miarę przesuwania się wzroku, jakby fragmenty docierały do ​​widza. Twarze są renderowane w poplamione, prawie pikselowe zagęszczenie, pojawiające się wyraźnie pod pewnymi kątami i całkowicie znikające pod innymi.

Kontrast jest duży, złożony, hałaśliwy i zmienia się, niezależnie od tego, jak na to spojrzymy. Prace można obecnie oglądać w Covilhã w Portugalii, w centrum danych Portugal Telecom.

Ways to cutting out a cork

When laying floorboards or attaching cork as wall cladding, cutting to size is usually unavoidable. Because cork panels have a certain size, just like walls or floors. It may then be that the cork panels have to be trimmed a little on one side so that the surface can be completely covered and no edges are left behind.

Before you begin the cutting process, you will need the right tools. Appropriate cutting accessories should be considered. Which knife or saw you can use here also depends on the thickness of the respective cork sheets.

The following cutting tools are therefore recommended: a carving knife or a sharp wallpaper cutter, which are suitable for thin cork sheets.

For this, however, you have to cut several times, only a light pressure on the knife is important, this gives you a clean cut edge so that the cork board does not break at the edge.

For thicker cork, you can use a jigsaw or thin wooden saw blades. When corking, saw slowly and without pressure

Before doing this, you have to clamp the cork sheet between the two screw clamps and mark the interface with a lath so that the cut edge is accurate.

The hand saw, on the other hand, is suitable for panels of medium thickness. In this case too, you need to clamp the board and saw it slowly.

When it comes to more sophisticated cork processes that are more likely to be used to make cork accessories for commercial purposes, two should be mentioned: laser cutting and CNC cutting. The first can be seen in the video below. It is mainly used in the manufacture of cork coasters

On the other hand, CNC cutting is also no less precise, used with a cork of larger dimensions, can be viewed in this video:

Cork powder and granules – ecological applications

Cork powder and granules are the main by-products of the cork industry, one of the leading economic activities in Portugal and other Mediterranean countries. Many applications for this product are anticipated, ranging from cork stoppers to agglomerates and briquettes for use as an adsorbent in the treatment of gaseous emissions, water and wastewater.

Cork biomass was used in its original form as a biosorbent for heavy metals and oils, and is also an activated carbon precursor for removing organic pollutants in water and volatile organic compounds in the gas phase.

The use of cork to solve environmental problems, namely oil spills, is the first commercial application of the cork potential of sorbent. The variety of raw materials that can be produced or extracted from cork has attracted the attention of many researchers.

The chemical composition of cork has been studied since the 18th century (Conde et al., 1998), but full knowledge of the chemical properties of cork, and even less of all its potential uses and transformations, is not yet complete.

In addition, since the beginning of the 21st century, the Portuguese cork industry has been investing in research and development: in the period 2000-2002 alone, 35 patents were registered, while in the previous decade only 19 were registered.

According to the Portuguese standards NP-114 and NP-273, cork powder is a material with dimensions smaller than 0.25 mm (Gil, 1997). There are different types of cork powder depending on the origin: grinding, granulating or pre-grinding powder; cleaning powder, no pollution; finishing powder from cutting and grinding operations; finishing powder for agglomerated cork slabs; finishing powder of agglomerated cork and discs; insulating powder for cork slabs (Gil et al., 1986).

A mixture of these powders is considered “flaming powder” as it is used to feed boilers due to its high calorific value (Fernandes et al., 2010; Gil, 1997). Other applications include use as a filler, mixed with adhesives, to improve the quality of corks, production of linoleum, use in agglomerates, briquettes, agricultural substrates, chemical sources (extracts)

Being an environmentally friendly and cheap material, cork powder can also be used to produce activated carbons with high specific surface areas, comparable to commercially available activated carbon, or it can be used directly for the adsorption of pollutants as a biosorbent. It is also used commercially as an absorbent during oil spills

Cork as a core material for multi-layer constructions

Cork is perfect as a component material for various types of laminates and substrates. You can use it as a core in plywood or inside plasterboard. The extensive use of multi-layer panel material has made it the material of choice in several industries and applications such as flat, massive and multi-layer door panels, super insulating window frames, partition panels for office and marine applications.

Agglomerated cork can be considered a suitable material for use as a core layer in sandwich panels: it has high impact resistance, good thermal and acoustic insulation properties and excellent vibration damping properties (Gil 2007; Fortes et al. 2004).

Cork is a natural material with a cellular structure with an interesting set of properties for sandwich structures, i.e. low density, very low liquid and gas permeability, high compressibility and dimensional recovery, low conductivity, chemical stability and durability (Pereira 2007).

Several studies have already considered the use of expanded cork as a core material, incl. carbon-epoxy sandwich panels (Reis and Silva 2009; Castro et al. 2010). Expanded cork agglomerate is a 100% natural cork product, made from waste and cork residues, or from industrial cork waste unsuitable for other uses (Diaz et al. 2003; Ferreira and Pereira 1986; Pereira and Ferreira 1989).

Expanded cork agglomerates are produced using cork granules in a closed autoclave at high temperature (about 300 C) and pressure (about 40 kPa) without the use of glue (Pereira and Ferreira 1989; Baptista and Vaz 1993).

These process conditions lead to: expansion of the plug cells and thermochemical degradation of the cell wall (Pereira 1992), along with the release of by-products that act as natural glues between the agglomerate granules (Pereira 1992; Amen-Chen et al. 2001; Rosa and Fortes 1988a) ).

Such ecological, light and cheap sandwich panels can be used as elements of non-structural structures such as partition walls. The use of sandwich structures has been steadily increasing over the past half-century.

A cork in the attic – a functional solution

Cork on attic is a proven insulation made of breathable and diffusion-resistant materials. Such a floor does not age, has above-average soundproofing properties and is highly resilient. Due to the natural bubbles formed in the process of natural expansion of the cork material during thermal treatment, it has a very good heat storage capacity.

The choice of a cork also significantly affects safety in the event of a fire. Cork does not catch fire quickly, it only smolders and is a product of the so-called self-extinguishing. The numerous advantages include resistance to rot, fungus and mildew, and after a short airing it is practically odorless. Most often, such a cork is placed on the OSB boards or directly on the log supports.

The cork is also suitable for roof insulation. Expanded cork, for example, is glued or nailed to the inside of the roof, which is not a difficult task in the case of a construction lath. These panels are lightweight and easy to cut. For this reason, they are perfect for warming and soundproofing. Cork insulation boards are available in various thicknesses. The thicker the sheet, the better it insulates. It is recommended to use boards about 6 inches thick to insulate the roof with cork. In order to avoid heat loss due to thermal bridges, the boards can be laid diagonally with respect to each other. In this way, the insulation will be more efficient in these difficult zones.

Natural cork in fishing

Fishing with a floating cork is essential for coastal fishing. Floats made of natural cork, formerly mainly made of wine corks, were and are often used in fishing and fishing. While anglers use it like floats of other materials, fishermen use the cork to mark the hook’s location by dragging it around the lines surrounding the fishing nets.

Cork is mainly used here because of its buoyancy and its ability to float. Such floats, unlike the factory foam and plastic ones, are delivered with a heavy weight, so that the set with them flies to the desired point without deflecting in the wind.

The unique structure of cork cells, which are filled with air, makes natural cork lighter than water. On the Internet you can find many fishing shops offering cork floats or fishing rods with handles made of natural cork, because it is not as slippery as synthetic handles.

In many places, mainly in the Mediterranean, it is used more often than other materials due to its availability. You can also make a cork float yourself with a little time and willingness.

The DIY tutorials suggest that you drill a 3mm hole in the center of the wine cork and stuff it with a bamboo stick. Using an authorized drill and sandpaper, give the cork plug a characteristic teardrop shape, trim the stick and on the other side finish the float trimmed with a safety pin. Then wrap the tip with thread and, if necessary, paint it so that it is visible on the water. Below you can see an example video tutorial on how to do it yourself at home.

Cork granules, on the other hand, are sometimes used as a bait additive. This is the case, for example, in the case of carp baits. Thanks to this addition, cork balls used in fishing can pick up a typical protein ball of similar size. Since cork is a natural product and it floats very well, cork pellets are added to the groundbait mixes to produce pop-up balls or hookbaits with reduced density.

Printing on natural cork – is that possible?

As befits a versatile material, cork is also subject to various printing techniques. It’s not just about technical cork, but also about cork fabric or wine corks, for example. The technology makes it possible to preserve the natural properties of cork while giving it a unique look through various printing technologies

Cork materials differ particularly in terms of flexibility and strength, making them suitable for industries as diverse as construction, transportation and footwear. Corks are no longer just corks, you can do absolutely anything today with its.

A very popular method of printing is screen printing, e.g. on cork pads, cork balls. Our offer includes this type of prints.

In this way, you can achieve amazing results and, with a little inspiration, create a unique placemat at home, a pattern on a cork board on the wall or on a cork yoga mat.

The cork also uses digital prints, e.g. with advertising pads. Such marketing procedures can be seen especially in pubs where you can often find cork coasters for beer and drinks printed with screen printing or digital printing. Such washers are also used by various types of companies to increase brand awareness among their customers.

Recently, however, the quite fresh trend of images on traffic jams has made a sensation. They are made on cork plates. Some companies, especially in Western Europe, have the option of ordering personalized photos by printing, which look very attractive and can be a truly unique gift for a loved one.

Of course, these are not the only printing methods used. The photos can be put on a pad or a cork plate using the dye-sublimation printing method. Then these photos do not differ from their counterparts on photographic paper. The only difference is the unusual cork carrier. In the video below you can see how this technique works in practice:

Another type of cork, if not the most popular, on which the print is used is the cork fabric and the most commonly associated cork product, i.e. cork wine stoppers. In the case of the former, printing on cork bags and generally understood cork accessories is the most common. This industry is especially popular in Portugal and the multitude of handbag designs and shapes is stunning there.

However, the first print that appeared in the 18th century was that on wine corks. Wine producers and winery owners have labeled their products with this imprint for over 200 years. Each natural cork stopper shows the logo of the alcohol manufacturer when opened.

The first Google brick-and-mortar store decorated with natural cork

A month ago in New York, Google opened its first brick-and-mortar store. From our point of view, the information would have gone unnoticed were it not for the fact that this most profitable company in the world decided to decorate the premises with cork and cork furniture.

When designing the interior, the discoveries of a relatively new field of science, i.e. neuroaesthetics, were used. This field studies how visual aesthetics affects our body and mind. At the company’s point in the Chelsea district of New York, furniture designed by Polish designer Daniel Michalik was used. Furniture, including oval-shaped sofas and tables, is made of light wood and cork in neutral colors, thanks to which the products will stand out.

The cork was used, among others to obtain LEED Platinum certification – on the higher possible certification as part of the evaluation of green buildings. The interior is designed in such a way that the final recipient will feel as comfortable as at home.

Near the main entrance is a 17-foot-tall circular glass structure (designed and manufactured with local New York partners), dubbed the Google Imagination Space. With custom interactive screens with rotating exhibits, visitors can enjoy the best products and technologies, starting with a Google Translate experience and our machine learning capabilities.

A thin black metal line extends across the store, delineating a seamless path and eye-catching between the various displays. The central circular counter that functions as a support desk has a neon halo that says “Here to help” many times in the ring.

Seats in the form of benches, pouffes and stools can be used by buyers and those seeking advice or assistance with the product. The windows feature illuminated “reveal boxes” that showcase Google products and allow passers-by to interact with them using augmented reality technology.

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