Rethink Your Life!
Finance, health, lifestyle, environment, philosophy
The Work of Art and The Art of Work
Kiko Denzer on Art
[Cob] Washington DC areaRaduazo at aol.com Raduazo at aol.com
Sun Aug 27 09:17:48 PDT 2006
We are getting close to finishing the cob playhouses and the straw bale bicycle shed at Clarindon. I am thinking about having a final cobbing workshop September 1 and 2 to get the roof rafters on the playhouses and a straw bale plastering party on September 9 where we will demonstrate the ever popular Cob Cottage cement mixers. If you think you would like to come and particularly if you need directions to Clarindon please give me a call or send an E-mail Ed @ 703-360-2316 One note on the Straw bale bicycle shed: The straw bale bicycle shed is an experimental building where we used temporary load bearing straw bale walls and we have laminated 8 inch thick cob walls on the interior surfaces of the bales. The initial structure consisted of an 8 foot and 6 foot high curved bale walls supporting a living roof. Wire ties run from the foundation and around the roof beams. Plywood was nailed on the beams and a living roof was planted on the roof membrane. There is no compression of the bales other than that provided by living roof. We then built an 8 inch thick cob wall on the bale interiors. There are two reasons for doing this. The first is that lode bearing straw bale walls are not code approved in most states and the cob wall will independently support the roof should the bales deteriorate. The second is to test out a passive solar wall configuration where the bale acts as a super insulator and the cob acts as a mass storage means for solar heat. It should be noted that the cob wall and the bale wall have separated by about one inch at the top. This should not affect the concept in that the cob wall is fully capable of taking over support of the roof and the wire bands still act as a hurricane ties for the roof. I will jam cob down between the two walls and both walls are sound, but I would have much rather had them stay together and act as a single unit. The lower layers of cob showed no tendency to separate, but they were built slower with several days of drying time between each successive layer of cob. I think the separation was caused by building too fast and too wet. Nancy and I put up 2000 pounds of wet cob extending one wall two feet, and the other wall 2 and 1/2 feet in a single day with wet rototiller-mixed cob. Fast mixing and application is essential to making cob work economically. In the future I think it would be a good idea to provide something like brick ties extending from the bale to the cob walls. And particularly from the wire bands to the cob. Next time I plan on putting some dead man anchors in the cob and tying them to the bales. Ed
Solar powered hosting (from our cob office building) provided by: DeaTech Research Inc. using Debian Linux based servers. We highly recommend, use, and provide support services for Debian Linux.
If you should have any problems with this page or website, please send email describing the problem(s) to: email@example.com
Last Modified: Wednesday, 09-Dec-2009 17:36:27 PST
If you wish to be permanently blocked from ever being able to send email to this domain, send your SPAM messages to: firstname.lastname@example.org