Cordwood Construction Best Practices
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- Cordwood flooring moves outdoors in Slovakia August 29, 2015
- Cordwood in Sweden @ Pelle Henriksson’s cordwood sauna August 20, 2015
- Cordwood Siding rocks the Cordwood Education Center August 15, 2015
- Cordwood Classroom in Guatemala Fund Raiser August 11, 2015
- Korean Cordwood (Cobwood) Soil Houses July 24, 2015
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Would you like to use a picture? Please askRichard and Becky Flatau run a cordwood resource business that deals in cordwood books, plans, consultations and workshops. General Information NOTICE of Copyright Protection © 2012 cordwoodconstruction.wordpress.com You DO NOT have PERMISSION to download images removing the connection to the originator of the work or republish images or image descriptions from Cordwood Construction even if you link back to the original post. If you would like to use an image or a whole section from the Cordwood Construction facebook page [www.facebook.com/cordwoodconstruction] or from the Cordwood Construction website [www.cordwoodconstruction.org] or the blog [www.cordwoodconstruction.wordpress.com] please contact us at email@example.com for permission.
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Category Archives: Cordwood Construction
Pelle Henriksson sent these wonderful pictures of his backyard sauna in Sweden. He calls his Facebook building site Kubbhusbastu which translates to Cordwood Sauna which Pelle says is “Just for fun.” The foundation (ring beam), framing (post & beam) and cordwood infill are very well done using “best practices” throughout. Pelle’s pictures tell the story very well.The logs for the framework are 100 years old and were found in Pelle’s uncle’s barn. The photo shows the grade beam and part of the drain tile (orange colored pipe).The foundation is a ring beam on a rubble trench with a drain tile sloped to a lower grade. Each post has a roofing shingle placed on the bottom to stop moisture from “wicking up” the post. Many of the older cordwood (kubbhus) buildings in Sweden use a clay based mortar. Olle Hagman has been very instrumental in documenting the migration of cordwood throughout Sweden and has located 150 buildings. His excellent article is told in the Cordwood Conference Papers 2015. http://www.daycreek.com/dc/html/paypal_flatau.htmNote how the windows are placed within a post and beam framework. This is my favorite style of window framing. Pelle used keyways (vertical strips of wood on the posts) to hold his wall sections in place. The sauna will have a changing room and a sauna chamber. Putting the roof on first allows Pelle to work and store his materials out of the elements.
A beautiful flower motif chain saw cut into a log end shows off the Swedish love of all things wooden. To fit a glass into a cleaned out hollow center log. Cut out a sheet of glass after tracing and cutting the paper template.Many of these pictures and more are also on Pelle’s Facebook page www.facebook.com/pages/Kubbhusbastu/ You may want to bookmark Pelle’s page and check back every now and again to marvel at his progress. Thank you Pelle for the explanation and the photos!
For more information on Cordwood Construciton, click on the picture or visit www.cordwoodconstruction.org
Cordwood siding (a.k.a. cordwood veneer or faux cordwood:0) was added to the interior walls at the Merrill School Forest lodge. This is for the dining hall and the administration requested a woodsy and unique wall for the students of the Merrill Area Public Schools. Here is what we created. There are lots of hidden gems tucked into the panels. Can you find the rabbit, mushroom, moon and stars?The bottom picture has a duck and a tree?Here is our recipe for SUCCESS. For these walls we used NO mortar. The one inch slices of cedar, pine, tamarack, red cedar and oak were sanded, sealed and secured to painted plywood panels. The paint was the best acrylic paint we could purchase and two coats were applied with a semi-gloss finish for easy cleaning.The slices were laid out and approved or moved by a team of semi-artistic volunteers:0)Each slice was lifted and a pilot hole was drilled through the plywood. A dab of construction adhesive was placed where the slice was lifted. The slice was returned to its “spot” and drilled from the bottom. Large pieces received 3 or 4 screws. The plywood had been pre-cut and fitted to the desired area. It was then screwed to the existing framework. This is B.S. (Before Slabs). Half slabs of sanded, sealed pine were used to cover the screw holes and to make it look like a post and beam framework. We used the cordwood siding to cover the electrical panel. Can you see the rabbit, mushroom, moon and stars?How about the muskie, dragonfly, tree and turtle?All the post and beam slabs are in place and the cafeteria is ready to serve the children good, wholesome food.The flowers reach for the suns rays. The first question you, dear reader, will likely ask: “Can I use mortar?” And the answer is of course you can. You put chicken wire on the plywood before you attach the slices and then you use the same mortar you have been using. Starting from the bottom you work your way to the top. This is also possible to do on sawhorses. Wait a day or two for it to dry and then mount it with screws. Here are a couple of pictures. The first is checking the slices for proper spacing and good random patterning.
Please use gloves when you do this. Mortar is very caustic on ones hands. This picture shows the invention of “cordwood siding” in 1981 by Richard Flatau at his cordwood home in Merrill, Wisconsin. This picture and the Mother Earth News article “A Sun-Room with a Cordwood Skin” appeared in the 1984 July/August issue. It is online at the http://www.motherearthnews.com archives under the title “A Mortgage-Free, Owner-Built Cordwood Castle.” http://www.motherearthnews.com/green-homes/cordwood-construction-zmaz84jazloeck.aspx
To learn more about cordwood visit www.cordwoodconstuction.org
If you would like some literature, here is the latest book about doing Cordwood Construction using best practices.
Questions or comments? Please email them to firstname.lastname@example.org
The Community Cloud Forest Conservation near Coban, Guatemala is seeking donations for its second cordwood classroom building. The first classroom for the impoverished children of the region is built and functioning. It was constructed in the shape of the Quetzal bird and is a stunning example of the possibilities using cordwood construction. The second Quetzal classroom will be even larger.The students, mostly middle school age girls, take their instruction in the classrooms and on the porch.
Want to help with the Community Cloud Forest Conservation in Guatemala? Here is your chance.
Dear Cordwood Friends, August 2015
Rob Cahill (Co-Director with his wife Tara) emailed and sent information on the CCFC’s latest funding campaign to improve the lives of the people in the rain forests near Coban, Guatemala. “CCFC alleviates poverty and protects cloud forests through education, reforestation, academic scholarships, agricultural development, food security, income generation and holistic community / human development.”
“One of the children in the rain forest, learning to identify and use local plants.”
Please consider this appeal and, if you deem it appropriate, send it on to your friends, family and social media links.
Here are Rob’s words and this is the link to donating via credit card, PayPal or via snail mail.
QUESTIONS? PLANNING A WORKING VISIT?
Contact Rob and Tara at email@example.com
“Learning about the natural resources class being led by a former student who had dropped out of school and now, because of CCFC, has become a successful teacher.”
CCFC’s Build and Beyond Capital Campaign seeks to raise $75,000 before June of 2016. Meeting this goal will provide the funds needed to equip the first major structure and finish phase 2 of the second structure. The second structure with the completion of phase 2 will provide urgently needed dormitory space and increase class room space for 96 resident students. It will also provide the funds needed to establish a processing center for cloud forest products. CCFC’s processing center will help make WALC and other CCFC programs more financially self-sufficient.
To help CCFC kick off this campaign the good people at Lutheran Partners in Minneapolis, Minnesota will match dollar for dollar the first $10,000 of contributions. Generous, yes, but there is a catch. In order for your contributions to be matched, CCFC needs to receive them before September 30, 2015. If CCFC receives 10,000 in contributions before September 31, 2015, CCFC’s building fund will receive another $10,000, thanks to the Lutheran Partners 1:1 match. This means that by September 30, we will be nearly one third of our way toward our over all goal.
Checks payable to:
3059 Hampshire Blvd SE
Grand Rapids, MI 49506
You can help CCFC take full advantage of this generous offer. Send your contribution by check to CCFC and help us turn your doubled contribution into education for the least served of the Q’eqchi’ Maya central highland outback villages.
Contributing toward the processing center is truly the gift that keeps on giving. The processing center will make CCFC’s education programs more financially self sufficient in the long term. CCFC students add value to cloud forest products and retail sales support their own education and scholarships.
While surfing the web I came across a picture of a uniquely beautiful cordwood home in South Korea that was labeled “Korean Soil House.” Having the good fortune to have a friend teaching in Seoul, South Korea at that time, I asked if he could try and track down the only available book on the subject. Adam was successful in his search and kind enough to cajole a bi-lingual friend to translate small portions of the book. I spent many hours attempting to make contact with the book’s author, but time and language constraints brought my search to no avail. Therefore, this should be considered a book and internet review of a very interesting development in traditional Korean architecture.
These soil houses, often called “cobwood” in the West, are traditional peasant homes that dot the Korean countryside. The homes are made completely of soil, but now builders are using cordwood rounds in the walls for structural stability. Fortunately, there is a Korean book written about these homes. It is called Learning How to Build Mokcheon Earth Homes by Young-gil Cho. “Mokcheon” is a small village where these types of homes originated and earth homes in Korea are called heuljip or heukjip. Here is a summary of that translation.
The Soil/Cordwood Method (Heuljip)
Soil and Wood
- The home starts with using the “beloved soil” of Korea. Choices are red clay, red earth clay and black soil. The author recommends using whatever earth you have under your feet as long as it is not black, organic loam, or contaminated soil.
- Pine from a hillside is best for log ends. Useable woods are: nut pine, fir, Japanese pine, pitch pine, hemlock, white spruce, Douglas fir and Korean spruce.
- As for drying the wood, he suggests letting it age in the wind, sun, rain and snow.
- A circle between 16 and 20 feet in diameter is marked with lime (like chalking a baseball field).
- The soil is disturbed to 24″ and then all rock and loam are removed.
- The soil is replaced and tamped. Then, two 16″ wide concentric circles are drawn to determine the perimeter.
- Rocks are gathered and placed 12″ high on the tamped ground.
- The rocks are laid 16″ wide to accommodate the logs and the soil mortar.
- At ground level, an exterior fireplace entrance flue is included to utilize the traditional Korean method of funneling a warming and cooking fire into the home.
- A mix of 5 parts soil to one part cement is used to stabilize the foundation.
- The mortar is 100% soil mixed with water.
- The soil is mixed with water by hand (similar to stomping cob).
- The soil and water mix are left covered for 2 to 3 days before mortaring.
- The soil is placed all the way through the wall. There is NO insulation cavity.
- The logs are placed a minimum of 4″ apart, although some builders place them much farther apart.
- A hammer is used to smack the log ends into the
- The soil mortar is moistened at day’s end and before beginning the next day. With larger logs a stick is placed underneath the bottom edge to reduce mortar slump.
- Tuck Pointing
- Tuck pointing is done with gloved hands, a paint brush, and a putty knife.
- Sometimes log ends are lightly burned with a propane torch to produce a star pattern.
- The walls have significant mortar cracking and checking as the soil dries.
- If red clay can be found nearby, it is used to plaster over the dried soil.
- Often it takes 2 or 3 applications of clay to produce a smooth, crack free surface.
- The interior can be warm and inviting once soil cracks have been taken care of and ample lighting is provided.
There is a growing number of soil/cordwood houses and cottages being built in South Korea. So much so, that a market has developed to buy and sell these homes. A popular website is http://www.hwangto.info which has many colorful photos and some earth/cordwood homes for sale. Some of the websites appear to show an earth cottage resort/spa destination.
The development of the South Korean soil and cordwood houses reminds me of the “back to the land” movement in North America in the late 1960’s, as well as the current natural and tiny home craze. There is an energetic desire to go to the countryside and erect one’s own dwelling with one’s own hands.
Should you be interested in more information on how to build your mortgage-free, cordwood home with your own hands, please visit. www.cordwoodconstruction.org and/or email firstname.lastname@example.org with your questions.
Earthmovesdesign (with permission)
Based in Suffolk and established since 1996, earthmovesdesign is Neil and Emi-Lou Lankford. Neil designs and makes gardens, Water features, and natural Cobwood Garden Rooms and kids play dens and has worked with both the private and commercial side of landscaping.
What is a Cobwood Roundhouse? It can be almost any shape, square, rectangle, oval and not just round. Its a handmade Natural building Constructed around an Oak ‘Henge’ Frame they have walls 40cm thick made using the ancient method of Cob (Soil, Sharp sand, Hay, Lime, and water) and wood, and an amazing self supporting ‘Reciprocal’ roof frame supporting a real flowering meadow. These tried and tested buildings have been designed to withstand Continental weather systems of freezing Winters and baking Summers. They are made from 3-6 metres in diameter (internal floor space) but other designs can be much bigger (up to 200 sq metres). They are made with a mixture of reclaimed Stained glass leaded windows and modern round windows as well as Larch wooden flooring and solid Oak doors, giving them a natural warm feel with each one being unique.
In using locally sourced materials and labour where possible these buildings are both low impact and and natural and take a about 8-14 weeks to make including off-site preparation.A beautiful stove warms the building.Framing the floor with larch for insulation purposes.Raking the dry cellulose to an even amount.What’s it for? These beautiful, versatile and unique buildings can be commissioned from me and can be just a small garden Snug or scaled up to be something much bigger, more sophisticated and have a multitude of uses such as: Environmental School Classroom, Garden office, Den, Dwelling, Kiosk, Summer house, Holiday Let, Bar, Studio, Shop, Retreat, the list goes on. We can make you one either on its own or as part of a landscape design.
We are not your average landscape designers, more like landscape artists and we are passionate about hand making outdoor garden rooms, Log Cabins cobwood roundhouses, wood-fired clay ovens, natural water-gardens and ponds, outdoor kitchens , snugs and rustic living roof sheds. If you can think of it, we can make it, and if you cant think of it, we’ve got plenty of ideas and designs.
If you would like to learn more about Cordwood Construction and the 5 mortar choices (one being Cob) please visit www.cordwoodconstruction.org
Tony and Denise have finished their gorgeous sauna on the Iron Range of northern Minnesota. Hand-built out of Northern White Cedar (after taking a workshop at Kinstone Permaculture Academy) here is a glimpse at the next workshop at Kinstone http://www.kinstonecircle.com/events/3-day-cordwood-workshop-july/ the Brough’s dedicated themselves to building this beautiful and practical addition to their camp grounds. Here are some pictures to showcase their results. The interior is bright and comfortable. One can go sailing into warm dreams while taking a soothing sauna. The pooch enjoys the sauna too!The sauna stove is “fed” from the changing area.
To see the early construction days of this wonderful creation check out https://cordwoodconstruction.wordpress.com/2014/09/26/cordwood-sauna-by-tony-denise-in-minnesota/Tony and Denise would like suggestions about “how to finish the top of this section of wall” (above the sauna stove). It has to be fire proof. If you have an idea, please reply in the Comment Section below. We thank you, in advance.
Should you be interested in learning more about Cordwood Construction, please visit www.cordwoodconstruction.org
On June 28, 2015 the final log end was placed into the Kinstone Cordwood Sauna! Many wonderful and talented worked on framing, cordwooding, and making bottle ends for this much anticipated structure. The workshop crew that finished to the “top plates” was focused and not to be denied. I said, “I don’t think we can finish this by the end of the workshop.” They took that as a challenge and worked diligently to prove me wrong. I am so happy they did. A group of fine folk who bonded with each other and the cordwood. Here are some heartwarming photos to show the details
Deer antler for a towel hook. Cordwood makes people happy:0)Big Rich is setting the window box into place. Working on each side of the wall. Almost to the top and time for lunch.The Michigan Girls (two lovely young ladies from central Michigan) invented a new technique (named by the class, “The Michigan Girls Top Plate Technique”) for finishing the wall “up to” a top plate. We finished by 4:00 PM on Sunday! Note the tree motif in the center of the wall.Ed McAllen stopped by to pay a visit. Ed has a gorgeous cordwood home in Galesville, Wisconsin.Alan Stankevitz of www.daycreek.com cordwood fame dropped by to talk about PEM (paper enhanced mortar) and take pictures and video of the workshop. It was great to see Alan. Alan also took some of these pictures with his drone camera.
Kinstone Permaculture Academy from the air. www.kinstonecircle.com There is one more cordwood workshop this summer on July 31 to August 2, 2015. Registration is on the Kinstone Circle website.Putting in the shelf brackets, made out of half rounds of cedar. If you are interested in learning more about Cordwood Construction, please click on the picture and you will be taken to www.cordwoodconstruction.org To order books and plans click on the Online Bookstore link.
Questions? email@example.com or fill out the form below.
You bet it does! Many people want to examine what possibilities they have with cordwood in the bathroom. Quite a few folks who live in cordwood homes or have a cordwood motif (like a cordwood floor or countertop) have done creative and amazingly beautiful things in their bathrooms. Here are a few examples.
John in Michigan has created a very attractive sink area with a cordwood wall and a sink top infilled with Lake Superior stones.
This gorgeous second story bathroom window is filled with sea shells, bottles and glassware that adds a luster and sunshine to the morning.
Another view of Bill Jarratt’s masterpiece.
If you want to go with a “Man Cave Theme” here is a fine example.
When you want the whole bathroom OUTSIDE, here is Marcus’s cobwood privy in New Jersey.
Cordwood has become a way to make a statement and build something unique and individualistic for yourself.
If you would like to learn a little more, please consider checking out the website www.cordwoodconstruction.org Click on the pictures and read the articles in the pull down menus to get even more ideas.
Should you be looking for a book on the subject, check out the latest on the subject at the Onlinc Cordwood Bookstore (also available in ebook and print). Click on the book cover once you arrive at the website to be taken to the Bookstore.
Ben Orchiderous of the Big Island of Hawaii has built a cordwood shed (for practice) and a 16 sided cordwood home for living. Besides running an orchid nursery with 40,000 varieties, he also built a two story Earthwood style cordwood home in his spare time. Here are some photos and descriptions of this gorgeously awesome cordwood home in one of the most beautiful places in the world.
From his deck he can see the Pacific Ocean to the east and the volcano Mona Kea to the west. For his cordwood walls, he used large rounds of Ohia Lehua and Captain Cook Pine.”The ‘Ōhi’a Lehua tree is one of the most common trees in Hawai’i. Almost always the name ‘Ōhi’a refers to the tree and Lehua to the flower…The Red Lehua flower is the official flower of the Big Island. (Credit Hawaiian Plants.)”
His home is surrounded with orchids and native plants. This is the rainy side of the Big Island and provides the most perfect weather for orchid growing. That is why David moved his family to the Big Island.
Rob Roy introduced me to David via email once he knew we were going to visit the Big Island. David was a gracious and engaging host. I thank Rob for his kindness in helping make the connection.
David and his log end buddy.
David hollowed out some of the rotten Ohia log ends and then put a colored panel on the outside of the log. The effect is very calming and colorful.
Note the shelf with the sacred totem.
Here is David in front of one of his 40,000 orchids!
His practice building that got him started on his cordwood journey. It now serves as a potting shed.
Best Specimen Award from the Hilo Orchid Society Show in 2010.
The only thing David said he would suggest is putting a gated deck opeing on the 2nd floor. Much easier to move things in and out.
There are stars in the wood!
A good picture of David with his beautiful walls. The rafters are 4 x 12 Douglas Fir shipped over from Washington.
Should you be interested in more information about cordwood building, please feel free to visit my website www.cordwoodconstruction.org, my Facebook page www.facebook.com/cordwoodconstruction and check out my Cordwood Online Bookstore (specializing in ebooks and print) by clicking on the picture of my latest book.
Aloha and Mahalo!