Benefits of Cork Flooring

Cork flooring is soft underfoot and a sustainable option.


| Dec. 9, 2008



cork floor

Cork flooring comes in a variety of shades and patterns.

NATURAL CORK BILBAO FROM EARTH & CLASSICS SERIES

If you’re looking for warm, cushiony flooring, think cork. Soft like suede, it has the insulating qualities and resiliency of carpet; the easy-to-clean surface of wood or tile; plus luxurious appeal from its earthy colors and rich visual texture. Made from tree bark, it’s also a natural and renewable resource, so it’s environmentally friendly, right?

The answer is yes, but with a footnote.

Cork has a multitude of green characteristics. The material is acquired by stripping most of the outer bark from the cork oak tree. This regular harvesting does the tree no harm, and the bark grows back, to be stripped again every nine years. The trees live for 200 years or so, and the forests, called Montados, are highly prized and passed down through generations of families in the cork-producing business.

Even cork processing is relatively straightforward: The cork sheets or pieces are cured, boiled and pressed. Scraps are collected for reuse, so almost nothing is wasted.

Yet for those of us in North America trying to be more eco-friendly, cork has a notable drawback: It comes from Europe. Forests of Quercus suber, the one oak species that produces cork, grow in the Mediterranean, primarily in Portugal. Fuel consumption from shipping cork adds to the embodied energy in every cork flooring product. Although the trees have been successfully grown in California, they haven’t produced the corky bark, likely from a subtle difference in the ecosystem.

The dilemma of long-distance shipping, however, is counter-balanced by the truly urgent need to preserve cork oak forests. Nora Berrahmouni, Mediterranean forest unit director at the environmental nonprofit World Wildlife Federation (WWF), says that cork forest ecosystems are endangered by increasing population growth and forest clearing. With the loss of viable Montados, “there could be intensification in forest fires, a loss of irreplaceable biodiversity and an accelerated desertification process,” she says.

paul cheney
1/20/2009 11:26:18 PM

The idea of recycling corks is odd indeed. Seems like a lot of wine. I live in Napa County so cork is plentiful. I have always sensed the value of a cork, really. This article may have me storing up corks for the winter. Honestly, I will bookmark ReCork America, just for fun information and endless possibilities.


kathryn_1
1/18/2009 7:29:17 PM

On page 2 or 3 you mention asking about volatile organic compounds - I think you meant volatile OUTGASSING compounds. These are produced by some vinyls and plastics. If you have a new car with vinyl seats you may even notice a film on the inside of your windows. It comes from the outgassing compounds in the vinyl. It is unavoidable. I suppose that, as would be entirely appropriate for a writer in Mother Earth News, you automatically typed "organic" once you hit the "o" key! Great article about cork floors, I had not even thought of this.


misty_1
12/15/2008 10:22:30 AM

Thanks for such positive feedback, all! In response to Sandra's observation that there are cork oaks in California, there certainly are, as I mentioned. But the bark they produce is not of suitable "corky" quality for commercial use. In response to Anna, I strongly suggest you start your quest by calling some of the manufacturers listed. But water runs downhill, and something like 2/3 of all basements in this country have water in them from time to time. Good luck!


anna hackman
12/13/2008 11:16:44 AM

I have a floating cork floor in my basement. Its substrate is MDF. If this floor gets wet, the MDF curls. It must be replaced at that point. Given that it is a basement, I was told you could only put a floating floor on top of concrete (with a vapor barrier). I have not found any floating floor with a MDF formaldehyde free substrate yet and I doubt a wood substrate would be okay for a basement. If anyone knows a floating cork floor with a no formaldehyde added substrate, I would love to know the brand. One negative about the floor is that the finish scratches just like a wood finish. Actually, it scratchs much easier than a wood floor. This may be due to the activity that it gets. Speak to whomever you are buying your floor from and tell them about your lifestyle. I have heard people putting extra coats of poly on their floor for high traffic areas. Despite that one negative item, I love my floors but they are going to have to be re-poly'ed. Anna www.green-talk.com


sandra_2
12/12/2008 8:46:17 PM

Cork Oaks are used as street trees here (Upland, CA 91786) The are dropping their acorn now. Although your article states that they do not produce "cork" their bark is obviously cork, it may not be of industrial quality, but it is cork.


jennifer _1
12/12/2008 5:48:25 PM

I really enjoyed your article on cork flooring. I have cork flooring and it is wonderful! It feels good on your bare feet, it's never cold. My feet used to hurt after a day of standing in my kitchen all day on a hard wood floor. Now that I have cork flooring it has made such an improvement for my feet. It’s so easy to clean, liquid spills just pool up on the surface and you get easily wipe it up with a sponge or a towel. It’s a pleasure a walk on and I really love the fact that it’s quiet to walk on. I’m now putting it in my bathroom and soon I’ll have cork flooring over my whole house!


greg_3
12/12/2008 1:17:38 PM

But how easy is it to keep clean since surface is permeable.


team wicanders
12/12/2008 10:20:39 AM

Such a fine article about cork oak. Thanks for sharing this wonderful information. We'd like to link to it. Also, the Amorim 2007 Sustainability Report covers in detail the issues that you address concerning energy use as relates to long-distance shipping, CO2 retention, and a complete eco-efficiency analysis. Your readers can find it here: http://wicanderscorkoakblog.com or here: http://www.amorim.com/en/cor_sustentabilidade_relatorio.php Cheers! Team Wicanders






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